Map of the source code

Workspace: ZP (Common)

Lots of important variables are stored in the zero page workspace as it is quicker and more space-efficient to access memory here

Workspace: XX3 (Common)

Temporary storage space for complex calculations

Workspace: Sprite buffer (Common)

Configuration data for sprites 0 to 63, which gets copied to the PPU to update the screen

Workspace: WP (Common)

Ship slots, variables

Workspace: K% (Common)

Ship data blocks

Workspace: Cartridge WRAM (Common)

The 8K of battery-backed RAM in the Elite cartridge, which is used for the graphics buffers and storing saved commanders

Macro: SETUP_PPU_FOR_ICON_BAR (Common)

If the PPU has started drawing the icon bar, configure the PPU to use nametable 0 and pattern table 0

Macro: ITEM (Common)

Macro definition for the market prices table

Macro: VERTEX (Common)

Macro definition for adding vertices to ship blueprints

Macro: EDGE (Common)

Macro definition for adding edges to ship blueprints

Macro: FACE (Common)

Macro definition for adding faces to ship blueprints

Macro: EJMP (Common)

Macro definition for jump tokens in the extended token table

Macro: ECHR (Common)

Macro definition for characters in the extended token table

Macro: ETOK (Common)

Macro definition for recursive tokens in the extended token table

Macro: ETWO (Common)

Macro definition for two-letter tokens in the extended token table

Macro: ERND (Common)

Macro definition for random tokens in the extended token table

Macro: TOKN (Common)

Macro definition for standard tokens in the extended token table

Macro: CHAR (Common)

Macro definition for characters in the recursive token table

Macro: TWOK (Common)

Macro definition for two-letter tokens in the token table

Macro: CONT (Common)

Macro definition for control codes in the recursive token table

Macro: RTOK (Common)

Macro definition for recursive tokens in the recursive token table

Macro: ADD_CYCLES_CLC (Common)

Add a specified number to the cycle count

Macro: ADD_CYCLES (Common)

Add a specified number to the cycle count

Macro: SUBTRACT_CYCLES (Common)

Subtract a specified number from the cycle count

Macro: FILL_MEMORY (Common)

Fill memory with the specified number of bytes

Macro: SEND_DATA_TO_PPU (Common)

Send a specified block of memory to the PPU

Variable: iNES header (iNES header)

The iNES header for running in an emulator

Variable: ResetMMC1_b7 (Bank 7)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: BEGIN (Bank 7)

Run through the NES initialisation process, reset the variables and start the game

Subroutine: ResetToStartScreen (Bank 7)

Reset the stack and the game's variables and show the Start screen

Subroutine: ResetVariables (Bank 7)

Reset all the RAM (in both the NES and cartridge), initialise all the game's variables, and switch to ROM bank 0

Subroutine: SetBank0 (Bank 7)

Page ROM bank 0 into memory at $8000

Subroutine: SetNonZeroBank (Bank 7)

An unused routine that pages a specified ROM bank into memory at $8000, but only if it is non-zero

Subroutine: ResetBank (Bank 7)

Retrieve a ROM bank number from the stack and page that bank into memory at $8000

Subroutine: SetBank (Bank 7)

Page a specified ROM bank into memory at $8000

Variable: xTitleScreen (Bank 7)

The text column for the title screen's title for each language

Variable: xSpaceView (Bank 7)

The text column for the space view name for each language

Variable: log (Bank 7)

Binary logarithm table (high byte)

Variable: logL (Bank 7)

Binary logarithm table (low byte)

Variable: antilog (Bank 7)

Binary antilogarithm table

Variable: antilogODD (Bank 7)

Binary antilogarithm table

Variable: SNE (Bank 7)

Sine/cosine table

Variable: ACT (Bank 7)

Arctan table

Variable: XX21 (Bank 7)

Ship blueprints lookup table

Subroutine: SendBarNamesToPPU (Bank 7)

Send the nametable entries for the icon bar to the PPU

Subroutine: SendBarPatts2ToPPU (Bank 7)

Send pattern data for tiles 64-127 for the icon bar to the PPU, split across multiple calls to the NMI handler if required

Subroutine: SendBarPattsToPPU (Bank 7)

Send pattern data for tiles 0-127 for the icon bar to the PPU, split across multiple calls to the NMI handler if required

Subroutine: SendBarPattsToPPUS (Bank 7)

Send the pattern data for the icon bar to the PPU (this is a jump so we can call this routine using a branch instruction)

Subroutine: SendBarNamesToPPUS (Bank 7)

Send the nametable entries for the icon bar to the PPU (this is a jump so we can call this routine using a branch instruction)

Subroutine: ConsiderSendTiles (Bank 7)

If there are enough free cycles, move on to the next stage of sending patterns to the PPU

Subroutine: SendBuffersToPPU (Part 1 of 3) (Bank 7)

Send the icon bar nametable and palette data to the PPU, if it has changed, before moving on to tile data in part 2

Subroutine: SendBuffersToPPU (Part 2 of 3) (Bank 7)

If we are already sending tile data to the PPU, pick up where we left off, otherwise jump to part 3 to check for new data to send

Subroutine: SendBuffersToPPU (Part 3 of 3) (Bank 7)

If we need to send tile nametable and pattern data to the PPU for either bitplane, start doing just that

Subroutine: SendTilesToPPU (Bank 7)

Set up the variables needed to send the tile nametable and pattern data to the PPU, and then send them

Subroutine: SendPatternsToPPU (Part 1 of 6) (Bank 7)

Calculate how many patterns we need to send and jump to the most efficient routine for sending them

Subroutine: SendPatternsToPPU (Part 2 of 6) (Bank 7)

Configure variables for sending data to the PPU one pattern at a time with checks

Subroutine: SendPatternsToPPU (Part 3 of 6) (Bank 7)

Send pattern data to the PPU for one pattern at a time, checking after each one to see if is the last one

Subroutine: SendPatternsToPPU (Part 4 of 6) (Bank 7)

Configure variables for sending data to the PPU until we run out of cycles

Subroutine: SendPatternsToPPU (Part 5 of 6) (Bank 7)

Send pattern data to the PPU for two patterns at a time, until we run out of cycles (and without checking for the last pattern)

Subroutine: SendPatternsToPPU (Part 6 of 6) (Bank 7)

Save progress for use in the next VBlank and return from the subroutine

Subroutine: SendOtherBitplane (Bank 7)

Check whether we should send another bitplane to the PPU

Subroutine: SendNametableToPPU (Bank 7)

Send the tile nametable to the PPU if there are enough cycles left in the current VBlank

Subroutine: CopyNameBuffer0To1 (Bank 7)

Copy the contents of nametable buffer 0 to nametable buffer 1

Subroutine: DrawBoxTop (Bank 7)

Draw the top edge of the box along the top of the screen in nametable buffer 0

Subroutine: DrawBoxEdges (Bank 7)

Draw the left and right edges of the box along the sides of the screen, drawing into the nametable buffer for the drawing bitplane

Variable: UNIV (Bank 7)

Table of pointers to the local universe's ship data blocks

Subroutine: GINF (Bank 7)

Fetch the address of a ship's data block into INF

Subroutine: HideExplosionBurst (Bank 7)

Hide the four sprites that make up the explosion burst that flashes up when a ship explodes

Subroutine: ClearScanner (Bank 7)

Remove all ships from the scanner and hide the scanner sprites

Subroutine: HideSprites (Bank 7)

Hide X sprites from sprite Y / 4 onwards

Variable: nameBufferHiAddr (Bank 7)

The high bytes of the addresses of the two nametable buffers

Variable: pattBufferHiAddr (Bank 7)

The high bytes of the addresses of the two pattern buffers

Subroutine: IRQ (Bank 7)

Handle IRQ interrupts by doing nothing

Subroutine: NMI (Bank 7)

The NMI interrupt handler that gets called every VBlank and which updates the screen, reads the controllers and plays music

Subroutine: UpdateNMITimer (Bank 7)

Update the NMI timer, which we can use to keep track of time for places like the combat demo

Subroutine: SendPaletteSprites (Bank 7)

Send the current palette and sprite data to the PPU

Subroutine: SetPaletteForView (Bank 7)

Send palette 0 for the current view to the PPU

Subroutine: SendPalettesToPPU (Bank 7)

Send the palette data from XX3 to the PPU

Subroutine: SendScreenToPPU (Bank 7)

Update the screen with the contents of the buffers

Subroutine: SetPPURegisters (Bank 7)

Set PPU_CTRL, PPU_ADDR and PPU_SCROLL for the current hidden bitplane

Subroutine: SetPPUTablesTo0 (Bank 7)

Set nametable 0 and pattern table 0 for drawing the icon bar

Subroutine: ClearBuffers (Bank 7)

If there are enough free cycles, clear down the nametable and pattern buffers for both bitplanes

Subroutine: ReadControllers (Bank 7)

Read the buttons on the controllers and update the control variables

Subroutine: ScanButtons (Bank 7)

Scan a specific controller and update the control variables

Subroutine: WaitForNextNMI (Bank 7)

An unused routine that waits until the NMI counter increments (i.e. the next VBlank)

Subroutine: WaitFor2NMIs (Bank 7)

Wait until two NMI interrupts have passed (i.e. the next two VBlanks)

Subroutine: WaitForNMI (Bank 7)

Wait until the next NMI interrupt has passed (i.e. the next VBlank)

Subroutine: WaitForIconBarPPU (Bank 7)

Wait until the PPU starts drawing the icon bar

Subroutine: ClearDrawingPlane (Part 1 of 3) (Bank 7)

Clear the nametable and pattern buffers for the newly flipped drawing plane

Subroutine: ClearDrawingPlane (Part 2 of 3) (Bank 7)

Clear the nametable buffers for the newly flipped drawing plane

Subroutine: ClearDrawingPlane (Part 3 of 3) (Bank 7)

Clear the pattern buffers for the newly flipped drawing plane

Variable: flagsForClearing (Bank 7)

A bitplane mask to control how bitplane buffer clearing works in the ClearPlaneBuffers routine

Subroutine: ClearPlaneBuffers (Part 1 of 2) (Bank 7)

Clear the nametable and pattern buffers of data that has already been sent to the PPU, starting with the nametable buffer

Subroutine: ClearPlaneBuffers (Part 2 of 2) (Bank 7)

Clear the pattern buffer of data that has already been sent to the PPU for the current bitplane

Subroutine: FillMemory (Bank 7)

Fill a block of memory with a specified value

Subroutine: FillMemory32Bytes (Bank 7)

Fill a 32-byte block of memory with a specified value

Subroutine: ClearMemory (Bank 7)

Clear a block of memory, split across multiple calls if required

Subroutine: WaitForPPUToFinish (Bank 7)

Wait until the NMI handler has finished updating both bitplanes, so the screen is no longer refreshing

Subroutine: FlipDrawingPlane (Bank 7)

Flip the drawing bitplane

Subroutine: SetDrawingBitplane (Bank 7)

Set the drawing bitplane to a specified value

Subroutine: SetPatternBuffer (Bank 7)

Set the high byte of the pattern buffer address variables

Subroutine: CopySmallBlock (Bank 7)

An unused routine that copies a small number of pages in memory

Subroutine: CopyLargeBlock (Bank 7)

An unused routine that copies a large number of pages in memory

Subroutine: WaitFor3xVBlank (Bank 7)

Wait for three VBlanks to pass

Subroutine: WaitForVBlank (Bank 7)

Wait for the next VBlank to pass

Subroutine: MakeSoundsAtVBlank (Bank 7)

Wait for the next VBlank and make the current sounds (music and sound effects)

Subroutine: DrawMessageInNMI (Bank 7)

Configure the NMI to send the portion of the screen that contains the in-flight message to the PPU (i.e. tile rows 22 to 24)

Subroutine: DrawShipInBitplane (Bank 7)

Flip the drawing bitplane and draw the current ship in the newly flipped bitplane

Subroutine: DrawBitplaneInNMI (Bank 7)

Configure the NMI to send the drawing bitplane to the PPU after drawing the box edges and setting the next free tile number

Subroutine: SetDrawPlaneFlags (Bank 7)

Set the drawing bitplane flags to the specified value, draw the box edges and set the next free tile number

Subroutine: SendInventoryToPPU (Bank 7)

Send X batches of 16 bytes from SC(1 0) to the PPU, for sending the inventory icon bar image

Variable: TWOS (Bank 7)

Ready-made single-pixel character row bytes for the space view

Variable: TWOS2 (Bank 7)

Ready-made double-pixel character row bytes for the space view

Variable: TWFL (Bank 7)

Ready-made character rows for the left end of a horizontal line in the space view

Variable: TWFR (Bank 7)

Ready-made character rows for the right end of a horizontal line in the space view

Variable: yLookupLo (Bank 7)

Lookup table for converting pixel y-coordinate to tile number (low byte)

Variable: yLookupHi (Bank 7)

Lookup table for converting pixel y-coordinate to tile number (high byte)

Subroutine: GetRowNameAddress (Bank 7)

Get the addresses in the nametable buffers for the start of a given character row

Subroutine: LOIN (Part 1 of 7) (Bank 7)

Draw a line: Calculate the line gradient in the form of deltas

Subroutine: LOIN (Part 2 of 7) (Bank 7)

Draw a line: Line has a shallow gradient, step right along x-axis

Subroutine: LOIN (Part 3 of 7) (Bank 7)

Draw a shallow line going right and up or left and down

Subroutine: LOIN (Part 4 of 7) (Bank 7)

Draw a shallow line going right and down or left and up

Subroutine: LOIN (Part 5 of 7) (Bank 7)

Draw a line: Line has a steep gradient, step up along y-axis

Subroutine: LOIN (Part 6 of 7) (Bank 7)

Draw a steep line going up and left or down and right

Subroutine: LOIN (Part 7 of 7) (Bank 7)

Draw a steep line going up and right or down and left

Subroutine: DrawSunRowOfBlocks (Bank 7)

Draw a row of character blocks that contain sunlight, silhouetting any existing content against the sun

Subroutine: HLOIN (Part 1 of 5) (Bank 7)

Draw a horizontal line from (X1, Y) to (X2, Y) using EOR logic

Subroutine: HLOIN (Part 2 of 5) (Bank 7)

Draw the left end of the line

Subroutine: HLOIN (Part 3 of 5) (Bank 7)

Draw the middle part of the line

Subroutine: HLOIN (Part 4 of 5) (Bank 7)

Draw the right end of the line

Subroutine: HLOIN (Part 5 of 5) (Bank 7)

Draw the line when it's all within one character block

Subroutine: DrawVerticalLine (Part 1 of 3) (Bank 7)

Draw a vertical line from (X1, Y1) to (X1, Y2)

Subroutine: DrawVerticalLine (Part 2 of 3) (Bank 7)

Draw the top end or bottom end of the line

Subroutine: DrawVerticalLine (Part 3 of 3) (Bank 7)

Draw the middle portion of the line from full-height blocks

Subroutine: PIXEL (Bank 7)

Draw a 1-pixel dot

Subroutine: DrawDash (Bank 7)

Draw a 2-pixel dash

Subroutine: ECBLB2 (Bank 7)

Start up the E.C.M. (start the countdown and make the E.C.M. sound)

Subroutine: MSBAR (Bank 7)

Draw a specific indicator in the dashboard's missile bar

Variable: missileNames (Bank 7)

Tile numbers for the four missile indicators on the dashboard, as offsets from the start of tile row 22

Variable: autoPlayKeys1_EN (Bank 7)

Auto-play commands for the first part of the auto-play combat demo (combat practice) when English is the chosen language

Variable: autoPlayKeys1_DE (Bank 7)

Auto-play commands for the first part of the auto-play combat demo (combat practice) when German is the chosen language

Variable: autoPlayKeys1_FR (Bank 7)

Auto-play commands for the first part of the auto-play combat demo (combat practice) when French is the chosen language

Variable: autoPlayKeys2 (Bank 7)

Auto-play commands for the second part of the auto-play demo (demonstrating the game itself)

Subroutine: AutoPlayDemo (Bank 7)

Automatically play the demo using the auto-play commands from the autoplayKeys tables

Subroutine: HideIconBarPointer (Bank 7)

Clear the icon bar choice and hide the icon bar pointer

Subroutine: SetIconBarPointer (Bank 7)

Set the icon bar pointer to a specific position

Subroutine: MoveIconBarPointer (Bank 7)

Move the sprites that make up the icon bar pointer and record any choices

Subroutine: SetControllerPast (Bank 7)

Set the controller history variables to the values from four VBlanks ago

Subroutine: UpdateJoystick (Bank 7)

Update the values of JSTX and JSTY with the values from the controller

Subroutine: IncreaseJoystick (Bank 7)

Increase a joystick value by a specific amount, jumping straight to the indicator centre if we increase from the left-hand side

Subroutine: DecreaseJoystick (Bank 7)

Decrease a joystick value by a specific amount, jumping straight to the indicator centre if we decrease from the right-hand side

Variable: iconBarButtons (Bank 7)

A list of button numbers for each icon bar type

Subroutine: HideStardust (Bank 7)

Hide the stardust sprites

Subroutine: HideMoreSprites (Bank 7)

Hide X + 1 sprites from sprite Y / 4 onwards

Subroutine: SetScreenForUpdate (Bank 7)

Get the screen ready for updating by hiding all sprites, after fading the screen to black if we are changing view

Subroutine: FadeAndHideSprites (Bank 7)

Fade the screen to black and hide all sprites

Subroutine: HideMostSprites (Bank 7)

Hide all sprites except for sprite 0 and the icon bar pointer

Subroutine: DELAY (Bank 7)

Wait until a specified number of NMI interrupts have passed (i.e. a specified number of VBlanks)

Subroutine: BEEP (Bank 7)

Make a short, high beep

Subroutine: EXNO3 (Bank 7)

Make an explosion sound

Subroutine: FlushSoundChannels (Bank 7)

Flush the SQ1, SQ2 and NOISE sound channels

Subroutine: FlushSQ2AndNOISE (Bank 7)

Flush the SQ2 and NOISE sound channels

Subroutine: FlushSpecificSound (Bank 7)

Flush the channels used by a specific sound

Subroutine: FlushSoundChannel (Bank 7)

Flush a specific sound channel

Subroutine: BOOP (Bank 7)

Make a long, low beep

Subroutine: MakeScoopSound (Bank 7)

Make the sound of the fuel scoops working

Subroutine: MakeHyperSound (Bank 7)

Make the hyperspace sound

Subroutine: NOISE (Bank 7)

Make the sound effect whose number is in Y

Subroutine: StartEffect_b7 (Bank 7)

Call the StartEffect routine

Variable: soundChannel (Bank 7)

The sound channels used by each sound effect

Variable: soundPriority (Bank 7)

The default priority for each sound effect

Subroutine: SetupPPUForIconBar (Bank 7)

If the PPU has started drawing the icon bar, configure the PPU to use nametable 0 and pattern table 0, while preserving A

Subroutine: GetShipBlueprint (Bank 7)

Fetch a specified byte from the current ship blueprint

Subroutine: ResetBankA (Bank 7)

Page a specified bank into memory at $8000 while preserving the value of A

Subroutine: GetDefaultNEWB (Bank 7)

Fetch the default NEWB flags for a specified ship type

Subroutine: IncreaseTally (Bank 7)

Add the kill count to the fractional and low bytes of our combat rank tally following a kill

Subroutine: ResetBankP (Bank 7)

Page a specified bank into memory at $8000 while preserving the value of A and the processor flags

Subroutine: CheckPauseButton (Bank 7)

Check whether the pause button has been pressed or an icon bar button has been chosen, and process pause/unpause if required

Subroutine: CheckForPause_b0 (Bank 7)

Call the CheckForPause routine in ROM bank 0

Subroutine: DrawInventoryIcon (Bank 7)

Draw the inventory icon on top of the second button in the icon bar

Subroutine: MakeSounds_b6 (Bank 7)

Call the MakeSounds routine in ROM bank 6

Subroutine: ChooseMusic_b6 (Bank 7)

Call the ChooseMusic routine in ROM bank 6

Subroutine: StartEffect_b6 (Bank 7)

Call the StartEffect routine in ROM bank 6

Subroutine: ResetMusicAfterNMI (Bank 7)

Wait for the next NMI before resetting the current tune to 0 and stopping the music

Subroutine: ResetMusic (Bank 7)

Reset the current tune to the default and stop all sounds (music and sound effects)

Subroutine: StopSounds_b6 (Bank 7)

Call the StopSounds routine in ROM bank 6

Subroutine: SetDemoAutoPlay_b5 (Bank 7)

Call the SetDemoAutoPlay routine in ROM bank 5

Subroutine: DrawSmallLogo_b4 (Bank 7)

Call the DrawSmallLogo routine in ROM bank 4

Subroutine: DrawBigLogo_b4 (Bank 7)

Call the DrawBigLogo routine in ROM bank 4

Subroutine: FadeToBlack_b3 (Bank 7)

Call the FadeToBlack routine in ROM bank 3

Subroutine: CheckSaveSlots_b6 (Bank 7)

Call the CheckSaveSlots routine in ROM bank 6

Subroutine: LL9_b1 (Bank 7)

Call the LL9 routine in ROM bank 1

Subroutine: SIGHT_b3 (Bank 7)

Call the SIGHT routine in ROM bank 3

Subroutine: TIDY_b1 (Bank 7)

Call the TIDY routine in ROM bank 1

Subroutine: ChooseLanguage_b6 (Bank 7)

Call the ChooseLanguage routine in ROM bank 6

Subroutine: PlayDemo_b0 (Bank 7)

Call the PlayDemo routine in ROM bank 0

Subroutine: STARS_b1 (Bank 7)

Call the STARS routine in ROM bank 1

Subroutine: CIRCLE2_b1 (Bank 7)

Call the CIRCLE2 routine in ROM bank 1

Subroutine: SUN_b1 (Bank 7)

Call the SUN routine in ROM bank 1

Subroutine: DrawBackground_b3 (Bank 7)

Call the DrawBackground routine in ROM bank 3

Subroutine: DrawSystemImage_b3 (Bank 7)

Call the DrawSystemImage routine in ROM bank 3

Subroutine: DrawImageNames_b4 (Bank 7)

Call the DrawImageNames routine in ROM bank 4

Subroutine: DrawCmdrImage_b6 (Bank 7)

Call the DrawCmdrImage routine in ROM bank 6

Subroutine: DrawSpriteImage_b6 (Bank 7)

Call the DrawSpriteImage routine in ROM bank 6

Subroutine: GetHeadshotType_b4 (Bank 7)

Call the GetHeadshotType routine in ROM bank 4

Subroutine: DrawEquipment_b6 (Bank 7)

Call the DrawEquipment routine in ROM bank 6

Subroutine: DEATH2_b0 (Bank 7)

Switch to ROM bank 0 and call the DEATH2 routine

Subroutine: StartGame_b0 (Bank 7)

Switch to ROM bank 0 and call the StartGame routine

Subroutine: SetViewAttrs_b3 (Bank 7)

Call the SetViewAttrs routine in ROM bank 3

Subroutine: FadeToColour_b3 (Bank 7)

Call the FadeToColour routine in ROM bank 3

Subroutine: DrawSmallBox_b3 (Bank 7)

Call the DrawSmallBox routine in ROM bank 3

Subroutine: DrawImageFrame_b3 (Bank 7)

Call the DrawImageFrame routine in ROM bank 3

Subroutine: DrawLaunchBox_b6 (Bank 7)

Call the DrawLaunchBox routine in ROM bank 6

Subroutine: SetLinePatterns_b3 (Bank 7)

Call the SetLinePatterns routine in ROM bank 3

Subroutine: TT24_b6 (Bank 7)

Call the TT24 routine in ROM bank 6

Subroutine: ClearDashEdge_b6 (Bank 7)

Call the ClearDashEdge routine in ROM bank 6

Subroutine: LoadNormalFont_b3 (Bank 7)

Call the LoadNormalFont routine in ROM bank 3

Subroutine: LoadHighFont_b3 (Bank 7)

Call the LoadHighFont routine in ROM bank 3

Subroutine: PAS1_b0 (Bank 7)

Call the PAS1 routine in ROM bank 0

Subroutine: GetSystemImage_b5 (Bank 7)

Call the GetSystemImage routine in ROM bank 5

Subroutine: GetSystemBack_b5 (Bank 7)

Call the GetSystemBack routine in ROM bank 5

Subroutine: GetCmdrImage_b4 (Bank 7)

Call the GetCmdrImage routine in ROM bank 4

Subroutine: GetHeadshot_b4 (Bank 7)

Call the GetHeadshot routine in ROM bank 4

Subroutine: DIALS_b6 (Bank 7)

Call the DIALS routine in ROM bank 6

Subroutine: InputName_b6 (Bank 7)

Call the InputName routine in ROM bank 6

Subroutine: ChangeToView_b0 (Bank 7)

Call the ChangeToView routine in ROM bank 0

Subroutine: LL164_b6 (Bank 7)

Call the LL164 routine in ROM bank 6

Subroutine: DrawLightning_b6 (Bank 7)

Call the DrawLightning routine in ROM bank 6

Subroutine: PauseGame_b6 (Bank 7)

Call the PauseGame routine in ROM bank 6

Subroutine: SetKeyLogger_b6 (Bank 7)

Call the SetKeyLogger routine in ROM bank 6

Subroutine: ChangeCmdrName_b6 (Bank 7)

Call the ChangeCmdrName routine in ROM bank 6

Subroutine: ResetCommander_b6 (Bank 7)

Call the ResetCommander routine in ROM bank 6

Subroutine: JAMESON_b6 (Bank 7)

Call the JAMESON routine in ROM bank 6

Subroutine: ShowScrollText_b6 (Bank 7)

Call the ShowScrollText routine in ROM bank 6

Subroutine: BEEP_b7 (Bank 7)

Call the BEEP routine in ROM bank 7

Subroutine: DETOK_b2 (Bank 7)

Call the DETOK routine in ROM bank 2

Subroutine: DTS_b2 (Bank 7)

Call the DTS routine in ROM bank 2

Subroutine: PDESC_b2 (Bank 7)

Call the PDESC routine in ROM bank 2

Subroutine: SetupIconBar_b3 (Bank 7)

Call the SetupIconBar routine in ROM bank 3

Subroutine: ShowIconBar_b3 (Bank 7)

Call the ShowIconBar routine in ROM bank 3

Subroutine: DrawDashNames_b3 (Bank 7)

Call the DrawDashNames routine in ROM bank 3

Subroutine: ResetScanner_b3 (Bank 7)

Call the ResetScanner routine in ROM bank 3

Subroutine: ResetScreen_b3 (Bank 7)

Call the ResetScreen routine in ROM bank 3

Subroutine: UpdateScreen (Bank 7)

Update the screen by sending data to the PPU, either immediately or during VBlank, depending on whether the screen is visible

Subroutine: SendViewToPPU_b3 (Bank 7)

Call the SendViewToPPU routine in ROM bank 3

Subroutine: SetupFullViewInNMI (Bank 7)

Configure the PPU to send tiles for the full screen during VBlank

Subroutine: SetupViewInNMI_b3 (Bank 7)

Call the SetupViewInNMI routine in ROM bank 3

Subroutine: SendBitplaneToPPU_b3 (Bank 7)

Call the SendBitplaneToPPU routine in ROM bank 3

Subroutine: UpdateIconBar_b3 (Bank 7)

Call the UpdateIconBar routine in ROM bank 3

Subroutine: DrawScreenInNMI_b0 (Bank 7)

Call the DrawScreenInNMI routine in ROM bank 0

Subroutine: SVE_b6 (Bank 7)

Call the SVE routine in ROM bank 6

Subroutine: MVS5_b0 (Bank 7)

Call the MVS5 routine in ROM bank 0

Subroutine: HALL_b1 (Bank 7)

Call the HALL routine in ROM bank 1

Subroutine: CHPR_b2 (Bank 7)

Call the CHPR routine in ROM bank 2

Subroutine: DASC_b2 (Bank 7)

Call the DASC routine in ROM bank 2

Subroutine: TT27_b2 (Bank 7)

Call the TT27 routine in ROM bank 2

Subroutine: ex_b2 (Bank 7)

Call the ex routine in ROM bank 2

Subroutine: PrintCtrlCode_b0 (Bank 7)

Call the PrintCtrlCode routine in ROM bank 0

Subroutine: SetupAfterLoad_b0 (Bank 7)

Call the SetupAfterLoad routine in ROM bank 0

Subroutine: HideShip_b1 (Bank 7)

Update the current ship so it is no longer shown on the scanner

Subroutine: HideFromScanner_b1 (Bank 7)

Call the HideFromScanner routine in ROM bank 1

Subroutine: TT66_b0 (Bank 7)

Call the TT66 routine in ROM bank 0

Subroutine: CLIP_b1 (Bank 7)

Call the CLIP routine in ROM bank 1, drawing the clipped line if it fits on-screen

Subroutine: ClearScreen_b3 (Bank 7)

Call the ClearScreen routine in ROM bank 3

Subroutine: SCAN_b1 (Bank 7)

Call the SCAN routine in ROM bank 1

Subroutine: UpdateViewWithFade (Bank 7)

Fade the screen to black, if required, hide all sprites and update the view

Subroutine: UpdateView_b0 (Bank 7)

Call the UpdateView routine in ROM bank 0

Subroutine: UpdateHangarView (Bank 7)

Update the hangar view on-screen by sending the data to the PPU, either immediately or during VBlank

Subroutine: CLYNS (Bank 7)

Clear the bottom two text rows of the visible screen

Variable: alertColours (Bank 7)

Colours for the background of the commander image to show the status condition when we are not looking at the space view

Subroutine: GetStatusCondition (Bank 7)

Calculate our ship's status condition

Subroutine: SetupDemoUniverse (Bank 7)

Initialise the local bubble of universe for the demo

Subroutine: FixRandomNumbers (Bank 7)

Fix the random number seeds to a known value so the random numbers generated are always the same when we run the demo

Subroutine: ResetOptions (Bank 7)

Reset the game options to their default values

Subroutine: DrawTitleScreen (Bank 7)

Draw a sequence of rotating ships on-screen while checking for button presses on the controllers

Variable: titleShipType (Bank 7)

The types of ship to show rotating on the title screen

Variable: titleShipDist (Bank 7)

The distances at which to show the rotating title screen ships

Subroutine: Ze (Bank 7)

Initialise the INWK workspace to a hostile ship

Subroutine: UpdateSaveCount (Bank 7)

Update the save counter for the current commander

Subroutine: NLIN3 (Bank 7)

Print a title and draw a screen-wide horizontal line on tile row 2 to box it in

Subroutine: NLIN4 (Bank 7)

Draw a horizontal line on tile row 2 to box in a title

Subroutine: NLIN2 (Bank 7)

Draw a horizontal line on tile row 2 to box in a title

Subroutine: SetDrawingPlaneTo0 (Bank 7)

Set the drawing bitplane to 0

Subroutine: ResetBuffers (Bank 7)

Reset the pattern and nametable buffers

Subroutine: DORND (Bank 7)

Generate random numbers

Subroutine: PROJ (Bank 7)

Project the current ship or planet onto the screen

Subroutine: PLS6 (Bank 7)

Calculate (X K) = (A P) / (z_sign z_hi z_lo)

Subroutine: UnpackToRAM (Bank 7)

Unpack compressed image data to RAM

Subroutine: UnpackToPPU (Bank 7)

Unpack compressed image data and send it to the PPU

Subroutine: FAROF2 (Bank 7)

Compare x_hi, y_hi and z_hi with A

Subroutine: MU5 (Bank 7)

Set K(3 2 1 0) = (A A A A) and clear the C flag

Subroutine: MULT3 (Bank 7)

Calculate K(3 2 1 0) = (A P+1 P) * Q

Subroutine: MLS2 (Bank 7)

Calculate (S R) = XX(1 0) and (A P) = A * ALP1

Subroutine: MLS1 (Bank 7)

Calculate (A P) = ALP1 * A

Subroutine: MU6 (Bank 7)

Set P(1 0) = (A A)

Subroutine: SQUA (Bank 7)

Clear bit 7 of A and calculate (A P) = A * A

Subroutine: SQUA2 (Bank 7)

Calculate (A P) = A * A

Subroutine: MU1 (Bank 7)

Copy X into P and A, and clear the C flag

Subroutine: MLU1 (Bank 7)

Calculate Y1 = y_hi and (A P) = |y_hi| * Q for Y-th stardust

Subroutine: MLU2 (Bank 7)

Calculate (A P) = |A| * Q

Subroutine: MULTU (Bank 7)

Calculate (A P) = P * Q

Subroutine: MU11 (Bank 7)

Calculate (A P) = P * X

Subroutine: FMLTU2 (Bank 7)

Calculate A = K * sin(A)

Subroutine: FMLTU (Bank 7)

Calculate A = A * Q / 256

Subroutine: MLTU2 (Bank 7)

Calculate (A P+1 P) = (A ~P) * Q

Subroutine: MUT3 (Bank 7)

An unused routine that does the same as MUT2

Subroutine: MUT2 (Bank 7)

Calculate (S R) = XX(1 0) and (A P) = Q * A

Subroutine: MUT1 (Bank 7)

Calculate R = XX and (A P) = Q * A

Subroutine: MULT1 (Bank 7)

Calculate (A P) = Q * A

Subroutine: MULT12 (Bank 7)

Calculate (S R) = Q * A

Subroutine: TAS3 (Bank 7)

Calculate the dot product of XX15 and an orientation vector

Subroutine: MAD (Bank 7)

Calculate (A X) = Q * A + (S R)

Subroutine: ADD (Bank 7)

Calculate (A X) = (A P) + (S R)

Subroutine: TIS1 (Bank 7)

Calculate (A ?) = (-X * A + (S R)) / 96

Subroutine: DV42 (Bank 7)

Calculate (P R) = 256 * DELTA / z_hi

Subroutine: DV41 (Bank 7)

Calculate (P R) = 256 * DELTA / A

Subroutine: DVID4 (Bank 7)

Calculate (P R) = 256 * A / Q

Subroutine: DVID3B2 (Bank 7)

Calculate K(3 2 1 0) = (A P+1 P) / (z_sign z_hi z_lo)

Subroutine: cntr (Bank 7)

Apply damping to the pitch or roll dashboard indicator

Subroutine: BUMP2 (Bank 7)

Bump up the value of the pitch or roll dashboard indicator

Subroutine: REDU2 (Bank 7)

Reduce the value of the pitch or roll dashboard indicator

Subroutine: LL5 (Bank 7)

Calculate Q = SQRT(R Q)

Subroutine: LL28 (Bank 7)

Calculate R = 256 * A / Q

Subroutine: TIS2 (Bank 7)

Calculate A = A / Q

Subroutine: NORM (Bank 7)

Normalise the three-coordinate vector in XX15

Subroutine: SetupMMC1 (Bank 7)

Configure the MMC1 mapper and page ROM bank 0 into memory at $8000

Variable: lineImage (Bank 7)

Image data for the horizontal line, vertical line and block images

Variable: fontImage (Bank 7)

Image data for the text font

Variable: Vectors_b7 (Bank 7)

Vectors at the end of ROM bank 7

Subroutine: ResetMMC1_b0 (Bank 0)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: Interrupts_b0 (Bank 0)

The IRQ and NMI handler while the MMC1 mapper reset routine is still running

Variable: versionNumber_b0 (Bank 0)

The game's version number in bank 0

Subroutine: ResetShipStatus (Bank 0)

Reset the ship's speed, hyperspace counter, laser temperature, shields and energy banks

Subroutine: DOENTRY (Bank 0)

Dock at the space station, show the ship hangar and work out any mission progression

Subroutine: Main flight loop (Part 4 of 16) (Bank 0)

For each nearby ship: Copy the ship's data block from K% to the zero-page workspace at INWK

Subroutine: Main flight loop (Part 5 of 16) (Bank 0)

For each nearby ship: If an energy bomb has been set off, potentially kill this ship

Subroutine: Main flight loop (Part 6 of 16) (Bank 0)

For each nearby ship: Move the ship in space and copy the updated INWK data block back to K%

Subroutine: Main flight loop (Part 7 of 16) (Bank 0)

For each nearby ship: Check whether we are docking, scooping or colliding with it

Subroutine: Main flight loop (Part 8 of 16) (Bank 0)

For each nearby ship: Process us potentially scooping this item

Subroutine: Main flight loop (Part 9 of 16) (Bank 0)

For each nearby ship: If it is a space station, check whether we are successfully docking with it

Subroutine: Main flight loop (Part 10 of 16) (Bank 0)

For each nearby ship: Remove if scooped, or process collisions

Subroutine: Main flight loop (Part 11 of 16) (Bank 0)

For each nearby ship: Process missile lock and firing our laser

Subroutine: Main flight loop (Part 12 of 16) (Bank 0)

For each nearby ship: Draw the ship, remove if killed, loop back

Subroutine: FlightLoop4To16 (Bank 0)

Display in-flight messages, call parts 4 to 12 of the main flight loop for each slot, and fall through into parts 13 to 16

Subroutine: Main flight loop (Part 13 of 16) (Bank 0)

Show energy bomb effect, charge shields and energy banks

Subroutine: Main flight loop (Part 14 of 16) (Bank 0)

Spawn a space station if we are close enough to the planet

Subroutine: Main flight loop (Part 15 of 16) (Bank 0)

Perform altitude checks with the planet and sun and process fuel scooping if appropriate

Subroutine: Main flight loop (Part 16 of 16) (Bank 0)

Call stardust routine

Subroutine: ChargeShields (Bank 0)

Charge the shields and energy banks

Subroutine: CheckAltitude (Bank 0)

Perform an altitude check with the planet, ending the game if we hit the ground

Subroutine: Main flight loop (Part 1 of 16) (Bank 0)

Seed the random number generator

Subroutine: Main flight loop (Part 2 of 16) (Bank 0)

Calculate the alpha and beta angles from the current pitch and roll of our ship

Subroutine: Main flight loop (Part 3 of 16) (Bank 0)

Scan for flight keys and process the results

Subroutine: DrawSpaceViewInNMI (Bank 0)

Configure the NMI handler to draw the space view

Subroutine: SPIN (Bank 0)

Randomly spawn cargo from a destroyed ship

Subroutine: HideHiddenColour (Bank 0)

Set the hidden colour to black, so that pixels in this colour in palette 0 are invisible

Variable: scacol (Bank 0)

Ship colours on the scanner

Subroutine: SetAXTo15 (Bank 0)

An unused routine that sets A and X to 15

Subroutine: PrintCombatRank (Bank 0)

Print the current combat rank

Subroutine: PrintLegalStatus (Bank 0)

Print the current legal status (clean, offender or fugitive)

Subroutine: STATUS (Bank 0)

Show the Status Mode screen

Subroutine: UpdateView (Bank 0)

Update the view

Variable: yHeadshot (Bank 0)

The text row for the headshot on the Status Mode page

Subroutine: DrawScreenInNMI (Bank 0)

Configure the NMI handler to draw the screen

Subroutine: PrintTokenCrTab (Bank 0)

Print a token, a newline and the correct indent for Status Mode entries in the chosen language

Subroutine: PrintCrTab (Bank 0)

Print a newline and the correct indent for Status Mode entries in the chosen language

Variable: xStatusMode (Bank 0)

The text column for the Status Mode entries for each language

Subroutine: MVT3 (Bank 0)

Calculate K(3 2 1) = (x_sign x_hi x_lo) + K(3 2 1)

Subroutine: MVS5 (Bank 0)

Apply a 3.6 degree pitch or roll to an orientation vector

Variable: TENS (Bank 0)

A constant used when printing large numbers in BPRNT

Subroutine: pr2 (Bank 0)

Print an 8-bit number, left-padded to 3 digits, and optional point

Subroutine: TT11 (Bank 0)

Print a 16-bit number, left-padded to n digits, and optional point

Subroutine: BPRNT (Bank 0)

Print a 32-bit number, left-padded to a specific number of digits, with an optional decimal point

Subroutine: DrawPitchRollBars (Bank 0)

Update the pitch and roll bars on the dashboard

Subroutine: ESCAPE (Bank 0)

Launch our escape pod

Subroutine: HME2 (Bank 0)

Search the galaxy for a system

Subroutine: TACTICS (Part 1 of 7) (Bank 0)

Apply tactics: Process missiles, both enemy missiles and our own

Subroutine: TACTICS (Part 2 of 7) (Bank 0)

Apply tactics: Escape pod, station, lone Thargon, safe-zone pirate

Subroutine: TACTICS (Part 3 of 7) (Bank 0)

Apply tactics: Calculate dot product to determine ship's aim

Subroutine: TACTICS (Part 4 of 7) (Bank 0)

Apply tactics: Check energy levels, maybe launch escape pod if low

Subroutine: TACTICS (Part 5 of 7) (Bank 0)

Apply tactics: Consider whether to launch a missile at us

Subroutine: TACTICS (Part 6 of 7) (Bank 0)

Apply tactics: Consider firing a laser at us, if aim is true

Subroutine: TACTICS (Part 7 of 7) (Bank 0)

Apply tactics: Set pitch, roll, and acceleration

Subroutine: DOCKIT (Bank 0)

Apply docking manoeuvres to the ship in INWK

Subroutine: VCSU1 (Bank 0)

Calculate vector K3(8 0) = [x y z] - coordinates of the sun or space station

Subroutine: VCSUB (Bank 0)

Calculate vector K3(8 0) = [x y z] - coordinates in (A V)

Subroutine: TAS1 (Bank 0)

Calculate K3 = (x_sign x_hi x_lo) - V(1 0)

Subroutine: TAS4 (Bank 0)

Calculate the dot product of XX15 and one of the space station's orientation vectors

Subroutine: TAS6 (Bank 0)

Negate the vector in XX15 so it points in the opposite direction

Subroutine: DCS1 (Bank 0)

Calculate the vector from the ideal docking position to the ship

Subroutine: HITCH (Bank 0)

Work out if the ship in INWK is in our crosshairs

Subroutine: FRS1 (Bank 0)

Launch a ship straight ahead of us, below the laser sights

Subroutine: FRMIS (Bank 0)

Fire a missile from our ship

Subroutine: ANGRY (Bank 0)

Make a ship hostile

Subroutine: FR1 (Bank 0)

Display the "missile jammed" message

Subroutine: SESCP (Bank 0)

Spawn an escape pod from the current (parent) ship

Subroutine: SFS1 (Bank 0)

Spawn a child ship from the current (parent) ship

Subroutine: SFS2 (Bank 0)

Move a ship in space along one of the coordinate axes

Subroutine: LAUN (Bank 0)

Make the launch sound and draw the launch tunnel

Subroutine: LASLI (Bank 0)

Draw the laser lines for when we fire our lasers

Subroutine: BRIEF2 (Bank 0)

Start mission 2

Subroutine: BRP (Bank 0)

Print an extended token and show the Status Mode screen

Subroutine: BRIEF3 (Bank 0)

Receive the briefing and plans for mission 2

Subroutine: DEBRIEF2 (Bank 0)

Finish mission 2

Subroutine: DEBRIEF (Bank 0)

Finish mission 1

Subroutine: TBRIEF (Bank 0)

Start mission 3

Subroutine: BRIEF (Bank 0)

Start mission 1 and show the mission briefing

Subroutine: BRIS_b0 (Bank 0)

Clear the screen, display "INCOMING MESSAGE" and wait for 2 seconds

Subroutine: ping (Bank 0)

Set the selected system to the current system

Subroutine: PlayDemo (Bank 0)

Play the combat demo

Subroutine: RunDemoFlightLoop (Bank 0)

Run a fixed number of iterations of the main flight loop for the combat demo

Subroutine: SetupDemoShip (Bank 0)

Set up the ship workspace for a new ship in the combat demo

Subroutine: tnpr1 (Bank 0)

Work out if we have space for one tonne of cargo

Subroutine: tnpr (Bank 0)

Work out if we have space for a specific amount of cargo

Subroutine: SetNewViewType (Bank 0)

Clear the screen, set the current view type and move the cursor to row 0

Subroutine: TT20 (Bank 0)

Twist the selected system's seeds four times

Subroutine: TT54 (Bank 0)

Twist the selected system's seeds

Subroutine: TT146 (Bank 0)

Print the distance to the selected system in light years

Subroutine: TT60 (Bank 0)

Print a text token and a paragraph break

Subroutine: TTX69 (Bank 0)

Print a paragraph break

Subroutine: TT69 (Bank 0)

Set Sentence Case and print a newline

Subroutine: TT67 (Bank 0)

Print a newline

Subroutine: TT70 (Bank 0)

Display "MAINLY " and jump to TT72

Subroutine: spc (Bank 0)

Print a text token followed by a space

Subroutine: PrintSpaceAndToken (Bank 0)

Print a space followed by a text token

Variable: xDataOnSystem (Bank 0)

The text column for the Data on System title for each language

Subroutine: PrintTokenAndColon (Bank 0)

Print a character followed by a colon, ensuring that the colon is always drawn in colour 3 on a black background

Variable: radiusText (Bank 0)

The text string "RADIUS" for use in the Data on System screen

Subroutine: TT25 (Bank 0)

Show the Data on System screen

Subroutine: TT22 (Bank 0)

Show the Long-range Chart

Subroutine: TT15 (Bank 0)

Draw a set of crosshairs

Subroutine: TT14 (Bank 0)

Draw a circle with crosshairs on a chart

Subroutine: TT128 (Bank 0)

Draw a circle on a chart

Subroutine: TT210 (Bank 0)

Show a list of current cargo in our hold, optionally to sell

Subroutine: TT213 (Bank 0)

Show the Inventory screen

Subroutine: PrintCharacter (Bank 0)

An unused routine that prints a character and sets the C flag

Subroutine: TT16 (Bank 0)

Move the crosshairs on a chart

Subroutine: TT103 (Bank 0)

Draw a small set of crosshairs on a chart

Subroutine: TT123 (Bank 0)

Move galactic coordinates by a signed delta

Subroutine: TT105 (Bank 0)

Draw crosshairs on the Short-range Chart, with clipping

Subroutine: DrawCrosshairs (Bank 0)

Draw a set of moveable crosshairs as a square reticle

Subroutine: HideCrosshairs (Bank 0)

Hide the moveable crosshairs (i.e. the square reticle)

Variable: xShortRange (Bank 0)

The text column for the Short-range Chart title for each language

Subroutine: TT23 (Bank 0)

Show the Short-range Chart

Subroutine: DrawChartSystem (Bank 0)

Draw system blobs on short-range chart

Subroutine: TT81 (Bank 0)

Set the selected system's seeds to those of system 0

Subroutine: SelectNearbySystem (Bank 0)

Set the current system to the nearest system and update the selected system flags accordingly

Subroutine: SetSelectedSystem (Bank 0)

Set the selected system to the nearest system, if we don't already have a selected system

Subroutine: SetSelectionFlags (Bank 0)

Set the selected system flags for the currently selected system and update the icon bar if required

Subroutine: SetCurrentSystem (Bank 0)

Set the seeds for the selected system to the system that we last snapped the crosshairs to

Subroutine: TT111 (Bank 0)

Set the current system to the nearest system to a point

Subroutine: dockEd (Bank 0)

Print a message to say there is no hyperspacing allowed inside the station

Subroutine: GalacticHyperdrive (Bank 0)

If we are in space and the countdown has ended, activate the galactic hyperdrive

Subroutine: hyp (Bank 0)

Start the hyperspace process

Subroutine: wW (Bank 0)

Start a hyperspace countdown

Subroutine: Ghy (Bank 0)

Perform a galactic hyperspace jump

Subroutine: jmp (Bank 0)

Set the current system to the selected system

Subroutine: pr6 (Bank 0)

Print 16-bit number, left-padded to 5 digits, no point

Subroutine: pr5 (Bank 0)

Print a 16-bit number, left-padded to 5 digits, and optional point

Subroutine: TT147 (Bank 0)

Print an error when a system is out of hyperspace range

Subroutine: prq (Bank 0)

Print a text token followed by a question mark

Subroutine: TT151 (Bank 0)

Print the name, price and availability of a market item

Subroutine: PrintSpacedHyphen (Bank 0)

Print two spaces, then a "-", and then another two spaces

Subroutine: TT152 (Bank 0)

Print the unit ("t", "kg" or "g") for a market item

Subroutine: TT162 (Bank 0)

Print a space

Subroutine: TT160 (Bank 0)

Print "t" (for tonne) and a space

Subroutine: TT161 (Bank 0)

Print "kg" (for kilograms)

Subroutine: TT16a (Bank 0)

Print "g" (for grams)

Subroutine: TT163 (Bank 0)

Print the headers for the table of market prices

Subroutine: PrintNumberInHold (Bank 0)

Print the number of units of a specified item that we have in the hold

Variable: yMarketPrice (Bank 0)

The text row for the Market Price title for each language

Subroutine: TT167 (Bank 0)

Show the Market Price screen

Subroutine: BuyAndSellCargo (Bank 0)

Process the buying and selling of cargo on the Market Price screen

Subroutine: HighlightSaleItem (Bank 0)

Highlight the name, price and availability of a market item on the correct row for the chosen language

Subroutine: PrintMarketItem (Bank 0)

Print the name, price and availability of a market item on the correct row for the chosen language

Subroutine: PrintCash (Bank 0)

Print our cash levels in the correct place for the chosen language

Variable: xCash (Bank 0)

The text column for our cash levels on the Market Price page

Variable: yCash (Bank 0)

The text row for the cash levels on the Market Price page

Subroutine: var (Bank 0)

Calculate QQ19+3 = economy * |economic_factor|

Subroutine: hyp1 (Bank 0)

Process a jump to the system closest to (QQ9, QQ10)

Subroutine: GVL (Bank 0)

Calculate the availability of market items

Subroutine: GTHG (Bank 0)

Spawn a Thargoid ship and a Thargon companion

Subroutine: MJP (Bank 0)

Process a mis-jump into witchspace

Subroutine: TT18 (Bank 0)

Try to initiate a jump into hyperspace

Subroutine: RedrawCurrentView (Bank 0)

Update the current view when we arrive in a new system

Subroutine: TT110 (Bank 0)

Launch from a station or show the front space view

Subroutine: TT114 (Bank 0)

Display either the Long-range or Short-range Chart

Subroutine: LCASH (Bank 0)

Subtract an amount of cash from the cash pot

Subroutine: MCASH (Bank 0)

Add an amount of cash to the cash pot

Subroutine: GC2 (Bank 0)

Calculate (Y X) = (A P) * 4

Subroutine: SetupAfterLoad (Bank 0)

Configure the game following a commander file load

Subroutine: DrawCobraMkIII (Bank 0)

Draw the Cobra Mk III on the Equip Ship screen

Subroutine: HighlightEquipment (Bank 0)

Highlight an item of equipment on the Equip Ship screen

Subroutine: PrintEquipment (Bank 0)

Print the name and price for a specified item of equipment

Subroutine: MoveEquipmentUp (Bank 0)

Move the currently selected item up the list of equipment

Subroutine: UpdateEquipment (Bank 0)

Highlight the newly chosen item of equipment, update the Cobra Mk III, redraw the screen and rejoin the main EQSHP routine

Subroutine: MoveEquipmentDown (Bank 0)

Move the currently selected item down the list of equipment

Variable: xEquipShip (Bank 0)

The text column for the Equip Ship title for each language

Subroutine: EQSHP (Bank 0)

Show the Equip Ship screen

Subroutine: dn (Bank 0)

Print the amount of money we have left in the cash pot

Subroutine: eq (Bank 0)

Subtract the price of equipment from the cash pot

Subroutine: prx (Bank 0)

Return the price of a piece of equipment

Subroutine: PrintLaserView (Bank 0)

Print the name of a laser view in the laser-buying popup, filled to the right by the correct number of spaces to fill the popup

Variable: xLaserView (Bank 0)

The text column of the right edge of the laser-buying popup, so the popup gets filled with spaces and covers what's underneath it

Subroutine: HighlightLaserView (Bank 0)

Highlight the laser view name in the popup menu

Variable: popupWidth (Bank 0)

The width of the popup that shows the views available for installing lasers in the Equipment screen

Subroutine: qv (Bank 0)

Print a popup menu of the four space views, for buying lasers

Subroutine: refund (Bank 0)

Install a new laser, processing a refund if applicable

Variable: PRXS (Bank 0)

Equipment prices

Subroutine: SetSelectedSeeds (Bank 0)

Set the seeds for the selected system in QQ15 to the seeds in the safehouse

Subroutine: cpl (Bank 0)

Print the selected system name

Subroutine: cmn (Bank 0)

Print the commander's name

Subroutine: ypl (Bank 0)

Print the current system name

Subroutine: tal (Bank 0)

Print the current galaxy number

Subroutine: fwl (Bank 0)

Print fuel and cash levels

Subroutine: Print4Spaces (Bank 0)

An unused routine that prints four spaces

Subroutine: Print2Spaces (Bank 0)

Print two spaces

Subroutine: ypls (Bank 0)

Print the current system name

Subroutine: csh (Bank 0)

Print the current amount of cash

Subroutine: plf (Bank 0)

Print a text token followed by a newline

Subroutine: TT68 (Bank 0)

Print a text token followed by a colon

Subroutine: TT73 (Bank 0)

Print a colon

Subroutine: tals (Bank 0)

Print the current galaxy number

Subroutine: PrintCtrlCode (Bank 0)

Print a control code (in the range 0 to 9)

Subroutine: fwls (Bank 0)

Print fuel and cash levels

Subroutine: SOS1 (Bank 0)

Update the missile indicators, set up the planet data block

Subroutine: SOLAR (Bank 0)

Set up various aspects of arriving in a new system

Subroutine: NWSTARS (Bank 0)

Initialise the stardust field

Subroutine: nWq (Bank 0)

Create a random cloud of stardust

Subroutine: WPSHPS (Bank 0)

Set all ships to be hidden from the screen

Subroutine: SHD (Bank 0)

Charge a shield and drain some energy from the energy banks

Subroutine: DENGY (Bank 0)

Drain some energy from the energy banks

Subroutine: COMPAS (Bank 0)

Update the compass

Subroutine: SP1 (Bank 0)

Draw the space station on the compass

Subroutine: SP2 (Bank 0)

Draw a dot on the compass, given the planet/station vector

Subroutine: SPS4 (Bank 0)

Calculate the vector to the space station

Subroutine: OOPS (Bank 0)

Take some damage

Subroutine: NWSPS (Bank 0)

Add a new space station to our local bubble of universe

Subroutine: NWSHP (Bank 0)

Add a new ship to our local bubble of universe

Subroutine: NwS1 (Bank 0)

Flip the sign and double an INWK byte

Subroutine: KS1 (Bank 0)

Remove the current ship from our local bubble of universe

Subroutine: KS4 (Bank 0)

Remove the space station and replace it with the sun

Subroutine: KS2 (Bank 0)

Check the local bubble for missiles with target lock

Subroutine: RemoveShip (Bank 0)

Fetch a ship data block and remove that ship from our local bubble of universe

Subroutine: KILLSHP (Bank 0)

Remove a ship from our local bubble of universe

Subroutine: ABORT (Bank 0)

Disarm missiles and update the dashboard indicators

Subroutine: ABORT2 (Bank 0)

Set/unset the lock target for a missile and update the dashboard

Subroutine: YESNO (Bank 0)

Display "YES" or "NO" and wait until one is chosen

Subroutine: TT17 (Bank 0)

Scan the key logger for the directional pad buttons

Subroutine: THERE (Bank 0)

Check whether we are in the Constrictor's system in mission 1

Subroutine: RESET (Bank 0)

Reset most variables

Subroutine: RES2 (Bank 0)

Reset a number of flight variables and workspaces

Subroutine: ZINF (Bank 0)

Reset the INWK workspace and orientation vectors

Subroutine: SetScreenHeight (Bank 0)

Set the screen height variables to the specified height

Subroutine: msblob (Bank 0)

Display the dashboard's missile indicators in black or grey

Subroutine: Main game loop (Part 1 of 6) (Bank 0)

Spawn a trader (a Cobra Mk III, Python, Boa or Anaconda)

Subroutine: Main game loop (Part 2 of 6) (Bank 0)

Call the main flight loop, and potentially spawn a trader, an asteroid, or a cargo canister

Subroutine: Main game loop (Part 3 of 6) (Bank 0)

Potentially spawn a cop, particularly if we've been bad

Subroutine: Main game loop (Part 4 of 6) (Bank 0)

Potentially spawn a lone bounty hunter, a Thargoid, or up to four pirates

Subroutine: Main game loop (Part 5 of 6) (Bank 0)

Cool down lasers, make calls to update the dashboard

Subroutine: Main game loop (Part 6 of 6) (Bank 0)

Process non-flight key presses (icon bar selections)

Variable: trumbleSounds (Bank 0)

The range of sounds that the Trumbles make in the hold

Subroutine: TT102 (Bank 0)

Process icon bar controller choices

Subroutine: BAD (Bank 0)

Calculate how bad we have been

Subroutine: FAROF (Bank 0)

Compare x_hi, y_hi and z_hi with 224

Subroutine: MAS4 (Bank 0)

Calculate a cap on the maximum distance to a ship

Subroutine: CheckForPause (Bank 0)

Pause the game if the pause button (Start) is pressed

Subroutine: DEATH (Bank 0)

Display the death screen

Subroutine: ShowStartScreen (Bank 0)

Show the start screen and start the game

Subroutine: DEATH2 (Bank 0)

Reset most of the game and restart from the title screen

Subroutine: StartGame (Bank 0)

Reset the stack and game variables, and start the game by going to the docking bay

Subroutine: BAY (Bank 0)

Go to the docking bay (i.e. show the Status Mode screen)

Subroutine: BR1 (Bank 0)

Reset a number of variables, ready to start a new game

Subroutine: ChangeToView (Bank 0)

Clear the screen and set a new view type

Subroutine: TITLE (Bank 0)

Display a title screen with a rotating ship and prompt

Subroutine: ZERO (Bank 0)

Reset the local bubble of universe and ship status

Subroutine: U% (Bank 0)

Clear the key logger

Subroutine: MAS1 (Bank 0)

Add an orientation vector coordinate to an INWK coordinate

Subroutine: MAS2 (Bank 0)

Calculate a cap on the maximum distance to the planet or sun

Subroutine: MAS3 (Bank 0)

Calculate A = x_hi^2 + y_hi^2 + z_hi^2 in the K% block

Subroutine: SpawnSpaceStation (Bank 0)

Add a space station to the local bubble of universe if we are close enough to the station's orbit

Subroutine: SPS2 (Bank 0)

Calculate X = A / 16

Subroutine: SPS3 (Bank 0)

Copy a space coordinate from the K% block into K3

Subroutine: SPS1 (Bank 0)

Calculate the vector to the planet and store it in XX15

Subroutine: TAS2 (Bank 0)

Normalise the three-coordinate vector in K3

Subroutine: WARP (Bank 0)

Process the fast-forward button to end the demo, dock instantly or perform an in-system jump

Subroutine: FastForwardJump (Bank 0)

Perform an in-system jump

Subroutine: CheckJumpSafety (Bank 0)

Check whether we are far enough away from the planet and sun to be able to do an in-system (fast-forward) jump

Subroutine: InSystemJump (Bank 0)

Perform an in-system (fast-forward) jump

Subroutine: DOKEY (Bank 0)

Scan for the seven primary flight controls and apply the docking computer manoeuvring code

Subroutine: PrintMessage (Bank 0)

Print a message in the middle of the screen (used for "GAME OVER" and demo missile messages only)

Subroutine: MESS (Bank 0)

Display an in-flight message

Subroutine: mes9 (Bank 0)

Print a text token, possibly followed by " DESTROYED"

Subroutine: StoreMessage (Bank 0)

Copy a message from the justified text buffer at BUF into the message buffer

Subroutine: DisableJustifyText (Bank 0)

Turn off justified text and reset the justified text buffer

Subroutine: PrintFlightMessage (Bank 0)

Print an in-flight message

Subroutine: OUCH (Bank 0)

Potentially lose cargo or equipment following damage

Subroutine: ou2 (Bank 0)

Display "E.C.M.SYSTEM DESTROYED" as an in-flight message

Subroutine: ou3 (Bank 0)

Display "FUEL SCOOPS DESTROYED" as an in-flight message

Variable: QQ23 (Bank 0)

Market prices table

Subroutine: PAS1 (Bank 0)

Display a rotating ship at space coordinates (0, 100, 256) and scan the controllers

Subroutine: MVEIT (Part 1 of 9) (Bank 0)

Move current ship: Tidy the orientation vectors

Subroutine: MVEIT (Part 2 of 9) (Bank 0)

Move current ship: Call tactics routine, remove ship from scanner

Subroutine: MVEIT (Part 3 of 9) (Bank 0)

Move current ship: Move ship forward according to its speed

Subroutine: MVEIT (Part 4 of 9) (Bank 0)

Move current ship: Apply acceleration to ship's speed as a one-off

Subroutine: MVEIT (Part 5 of 9) (Bank 0)

Move current ship: Rotate ship's location by our pitch and roll

Subroutine: MVEIT (Part 6 of 9) (Bank 0)

Move current ship: Move the ship in space according to our speed

Subroutine: MVEIT (Part 7 of 9) (Bank 0)

Move current ship: Rotate ship's orientation vectors by pitch/roll

Subroutine: MVEIT (Part 8 of 9) (Bank 0)

Move current ship: Rotate ship about itself by its own pitch/roll

Subroutine: MVEIT (Part 9 of 9) (Bank 0)

Move current ship: Redraw on scanner, if it hasn't been destroyed

Subroutine: MVT1 (Bank 0)

Calculate (x_sign x_hi x_lo) = (x_sign x_hi x_lo) + (A R)

Subroutine: MVS4 (Bank 0)

Apply pitch and roll to an orientation vector

Subroutine: MVT6 (Bank 0)

Calculate (A P+2 P+1) = (x_sign x_hi x_lo) + (A P+2 P+1)

Subroutine: MV40 (Bank 0)

Rotate the planet or sun's location in space by the amount of pitch and roll of our ship

Subroutine: PLUT (Bank 0)

Flip the coordinate axes for the four different views

Subroutine: LOOK1 (Bank 0)

Initialise the space view

Subroutine: FLIP (Bank 0)

Reflect the stardust particles in the screen diagonal

Subroutine: SendSpaceViewToPPU (Bank 0)

Set a new space view, clear the screen, copy the nametable buffers and configure the PPU for the new view

Subroutine: SetSpaceViewInNMI (Bank 0)

Change the current space view and configure the NMI to send both bitplanes to the PPU during VBlank

Subroutine: ResetStardust (Bank 0)

Hide the sprites for the stardust

Subroutine: SetupSpaceView (Bank 0)

Set up the NMI variables for the space view

Subroutine: ECMOF (Bank 0)

Switch off the E.C.M.

Subroutine: SFRMIS (Bank 0)

Add an enemy missile to our local bubble of universe

Subroutine: EXNO2 (Bank 0)

Process us making a kill

Variable: explosionSounds (Bank 0)

Sound numbers for explosions at different distances from our ship

Subroutine: EXNO (Bank 0)

Make the sound of a laser strike or ship explosion

Subroutine: TT66 (Bank 0)

Clear the screen and set the new view type

Subroutine: PrintSpaceViewName (Bank 0)

Print the name of the current space view

Variable: Vectors_b0 (Bank 0)

Vectors and padding at the end of ROM bank 0

Subroutine: ResetMMC1_b1 (Bank 1)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: Interrupts_b1 (Bank 1)

The IRQ and NMI handler while the MMC1 mapper reset routine is still running

Variable: versionNumber_b1 (Bank 1)

The game's version number in bank 1

Variable: Unused copy of XX21 (Bank 1)

Remnants of an unused copy of the XX21 ship blueprints lookup table

Variable: E% (Bank 1)

Ship blueprints default NEWB flags

Variable: KWL% (Bank 1)

Fractional number of kills awarded for destroying each type of ship

Variable: KWH% (Bank 1)

Integer number of kills awarded for destroying each type of ship

Variable: SHIP_MISSILE (Bank 1)

Ship blueprint for a missile

Variable: SHIP_CORIOLIS (Bank 1)

Ship blueprint for a Coriolis space station

Variable: SHIP_ESCAPE_POD (Bank 1)

Ship blueprint for an escape pod

Variable: SHIP_PLATE (Bank 1)

Ship blueprint for an alloy plate

Variable: SHIP_CANISTER (Bank 1)

Ship blueprint for a cargo canister

Variable: SHIP_BOULDER (Bank 1)

Ship blueprint for a boulder

Variable: SHIP_ASTEROID (Bank 1)

Ship blueprint for an asteroid

Variable: SHIP_SPLINTER (Bank 1)

Ship blueprint for a splinter

Variable: SHIP_SHUTTLE (Bank 1)

Ship blueprint for a Shuttle

Variable: SHIP_TRANSPORTER (Bank 1)

Ship blueprint for a Transporter

Variable: SHIP_COBRA_MK_3 (Bank 1)

Ship blueprint for a Cobra Mk III

Variable: SHIP_PYTHON (Bank 1)

Ship blueprint for a Python

Variable: SHIP_BOA (Bank 1)

Ship blueprint for a Boa

Variable: SHIP_ANACONDA (Bank 1)

Ship blueprint for an Anaconda

Variable: SHIP_ROCK_HERMIT (Bank 1)

Ship blueprint for a rock hermit (asteroid)

Variable: SHIP_VIPER (Bank 1)

Ship blueprint for a Viper

Variable: SHIP_SIDEWINDER (Bank 1)

Ship blueprint for a Sidewinder

Variable: SHIP_MAMBA (Bank 1)

Ship blueprint for a Mamba

Variable: SHIP_KRAIT (Bank 1)

Ship blueprint for a Krait

Variable: SHIP_ADDER (Bank 1)

Ship blueprint for an Adder

Variable: SHIP_GECKO (Bank 1)

Ship blueprint for a Gecko

Variable: SHIP_COBRA_MK_1 (Bank 1)

Ship blueprint for a Cobra Mk I

Variable: SHIP_WORM (Bank 1)

Ship blueprint for a Worm

Variable: SHIP_COBRA_MK_3_P (Bank 1)

Ship blueprint for a Cobra Mk III (pirate)

Variable: SHIP_ASP_MK_2 (Bank 1)

Ship blueprint for an Asp Mk II

Variable: SHIP_PYTHON_P (Bank 1)

Ship blueprint for a Python (pirate)

Variable: SHIP_FER_DE_LANCE (Bank 1)

Ship blueprint for a Fer-de-Lance

Variable: SHIP_MORAY (Bank 1)

Ship blueprint for a Moray

Variable: SHIP_THARGOID (Bank 1)

Ship blueprint for a Thargoid mothership

Variable: SHIP_THARGON (Bank 1)

Ship blueprint for a Thargon

Variable: SHIP_CONSTRICTOR (Bank 1)

Ship blueprint for a Constrictor

Variable: SHIP_COUGAR (Bank 1)

Ship blueprint for a Cougar

Variable: SHIP_DODO (Bank 1)

Ship blueprint for a Dodecahedron ("Dodo") space station

Subroutine: SHPPT (Bank 1)

Draw a distant ship as a point rather than a full wireframe

Subroutine: LL38 (Bank 1)

Calculate (S A) = (S R) + (A Q)

Subroutine: LL51 (Bank 1)

Calculate the dot product of XX15 and XX16

Subroutine: LL9 (Part 1 of 12) (Bank 1)

Draw ship: Check if ship is exploding, check if ship is in front

Subroutine: LL9 (Part 2 of 12) (Bank 1)

Draw ship: Check if ship is in field of view, close enough to draw

Subroutine: LL9 (Part 3 of 12) (Bank 1)

Draw ship: Set up orientation vector, ship coordinate variables

Subroutine: LL9 (Part 4 of 12) (Bank 1)

Draw ship: Set visibility for exploding ship (all faces visible)

Subroutine: LL9 (Part 5 of 12) (Bank 1)

Draw ship: Calculate the visibility of each of the ship's faces

Subroutine: LL9 (Part 6 of 12) (Bank 1)

Draw ship: Calculate the visibility of each of the ship's vertices

Subroutine: LL61 (Bank 1)

Calculate (U R) = 256 * A / Q

Subroutine: LL62 (Bank 1)

Calculate 128 - (U R)

Subroutine: LL9 (Part 7 of 12) (Bank 1)

Draw ship: Calculate the visibility of each of the ship's vertices

Subroutine: LL9 (Part 8 of 12) (Bank 1)

Draw ship: Calculate the screen coordinates of visible vertices

Subroutine: LL9 (Part 9 of 12) (Bank 1)

Draw ship: Draw laser beams if the ship is firing its laser at us

Subroutine: LL9 (Part 10 of 12) (Bank 1)

Draw ship: Calculate the visibility of each of the ship's edges

Subroutine: LL145 (Part 1 of 4) (Bank 1)

Clip line: Work out which end-points are on-screen, if any

Subroutine: LL145 (Part 2 of 4) (Bank 1)

Clip line: Work out if any part of the line is on-screen

Subroutine: LL145 (Part 3 of 4) (Bank 1)

Clip line: Calculate the line's gradient

Subroutine: LL145 (Part 4 of 4) (Bank 1)

Clip line: Call the routine in LL188 to do the actual clipping

Subroutine: LL9 (Part 11 of 12) (Bank 1)

Draw ship: Loop back for the next edge

Subroutine: LL9 (Part 12 of 12) (Bank 1)

Does nothing in the NES version

Subroutine: LL118 (Bank 1)

Move a point along a line until it is on-screen

Subroutine: LL120 (Bank 1)

Calculate (Y X) = (S x1_lo) * XX12+2 or (S x1_lo) / XX12+2

Subroutine: LL123 (Bank 1)

Calculate (Y X) = (S R) / XX12+2 or (S R) * XX12+2

Subroutine: LL129 (Bank 1)

Calculate Q = XX12+2, A = S EOR XX12+3 and (S R) = |S R|

Subroutine: DOEXP (Bank 1)

Draw an exploding ship

Subroutine: PLANET (Bank 1)

Draw the planet or sun

Subroutine: PL9 (Part 1 of 3) (Bank 1)

Draw the planet, with either an equator and meridian, or a crater

Subroutine: PL9 (Part 2 of 3) (Bank 1)

Draw the planet's equator and meridian

Subroutine: PL9 (Part 3 of 3) (Bank 1)

Draw the planet's crater

Subroutine: PLS1 (Bank 1)

Calculate (Y A) = nosev_x / z

Subroutine: PLS2 (Bank 1)

Draw a half-ellipse

Subroutine: PLS22 (Bank 1)

Draw an ellipse or half-ellipse

Subroutine: SUN (Part 1 of 2) (Bank 1)

Draw the sun: Set up all the variables needed to draw the sun

Subroutine: SUN (Part 2 of 2) (Bank 1)

Draw the sun: Starting from the bottom of the sun, draw the new sun line by line

Subroutine: PLFL (Bank 1)

Calculate the sun's width on a given pixel row

Subroutine: CIRCLE (Bank 1)

Draw a circle for the planet

Subroutine: CIRCLE2 (Bank 1)

Draw a circle (for the planet or chart)

Subroutine: EDGES (Bank 1)

Draw a horizontal line given a centre and a half-width

Subroutine: DrawSunEdgeLeft (Bank 1)

Draw a sun line in the tile on the left end of a sun row

Subroutine: DrawSunEdgeRight (Bank 1)

Draw a sun line in the tile on the right end of a sun row

Subroutine: CHKON (Bank 1)

Check whether any part of a circle appears on the extended screen

Subroutine: PL21 (Bank 1)

Return from a planet/sun-drawing routine with a failure flag

Subroutine: PL44 (Bank 1)

Return from a planet/sun-drawing routine with a success flag

Subroutine: PLS3 (Bank 1)

Calculate (Y A P) = 222 * roofv_x / z

Subroutine: PLS4 (Bank 1)

Calculate CNT2 = arctan(P / A) / 4

Subroutine: PLS5 (Bank 1)

Calculate roofv_x / z and roofv_y / z

Subroutine: ARCTAN (Bank 1)

Calculate A = arctan(P / Q)

Subroutine: BLINE (Bank 1)

Draw a circle segment and add it to the ball line heap

Subroutine: STARS (Bank 1)

The main routine for processing the stardust

Subroutine: STARS1 (Bank 1)

Process the stardust for the front view

Subroutine: STARS6 (Bank 1)

Process the stardust for the rear view

Subroutine: STARS2 (Bank 1)

Process the stardust for the left or right view

Variable: yHangarFloor (Bank 1)

Pixel y-coordinates for the four horizontal lines that make up the floor of the ship hangar

Subroutine: HANGER (Bank 1)

Display the ship hangar

Subroutine: DrawHangarWallLine (Bank 1)

Draw a vertical hangar wall line from top to bottom, stopping when it bumps into existing on-screen content

Subroutine: HAL3 (Bank 1)

Draw a hangar background line from left to right, stopping when it bumps into existing on-screen content

Subroutine: HAS3 (Bank 1)

Draw a hangar background line from right to left

Variable: HATB (Bank 1)

Ship hangar group table

Subroutine: HALL (Bank 1)

Draw the ships in the ship hangar, then draw the hangar

Subroutine: ZINF_b1 (Bank 1)

Reset the INWK workspace and orientation vectors

Subroutine: HAS1 (Bank 1)

Draw a ship in the ship hangar

Subroutine: TIDY (Bank 1)

Orthonormalise the orientation vectors for a ship

Subroutine: TIS3 (Bank 1)

Calculate -(nosev_1 * roofv_1 + nosev_2 * roofv_2) / nosev_3

Subroutine: DVIDT (Bank 1)

Calculate (P+1 A) = (A P) / Q

Subroutine: SCAN (Bank 1)

Display the current ship on the scanner

Subroutine: HideShip (Bank 1)

Update the current ship so it is no longer shown on the scanner

Subroutine: HideFromScanner (Bank 1)

Hide the current ship from the scanner

Subroutine: DrawExplosionBurst (Bank 1)

Draw an exploding ship along with an explosion burst made up of colourful sprites

Subroutine: PIXEL2 (Bank 1)

Draw a stardust particle relative to the screen centre

Variable: Vectors_b1 (Bank 1)

Vectors and padding at the end of ROM bank 1

Subroutine: ResetMMC1_b2 (Bank 2)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: Interrupts_b2 (Bank 2)

The IRQ and NMI handler while the MMC1 mapper reset routine is still running

Variable: versionNumber_b2 (Bank 2)

The game's version number in bank 2

Variable: TKN1 (Bank 2)

The first extended token table for recursive tokens 0-255 (DETOK)

Variable: RUPLA (Bank 2)

System numbers that have extended description overrides

Variable: RUGAL (Bank 2)

The criteria for systems with extended description overrides

Variable: RUTOK (Bank 2)

The second extended token table for recursive tokens 0-26 (DETOK3)

Variable: TKN1_DE (Bank 2)

The first extended token table for recursive tokens 0-255 (DETOK) (German)

Variable: RUPLA_DE (Bank 2)

System numbers that have extended description overrides (German)

Variable: RUGAL_DE (Bank 2)

The criteria for systems with extended description overrides (German)

Variable: RUTOK_DE (Bank 2)

The second extended token table for recursive tokens 0-26 (DETOK3) (German)

Variable: TKN1_FR (Bank 2)

The first extended token table for recursive tokens 0-255 (DETOK) (French)

Variable: RUPLA_FR (Bank 2)

System numbers that have extended description overrides (French)

Variable: RUGAL_FR (Bank 2)

The criteria for systems with extended description overrides (French)

Variable: RUTOK_FR (Bank 2)

The second extended token table for recursive tokens 0-26 (DETOK3) (French)

Variable: QQ18 (Bank 2)

The recursive token table for tokens 0-148

Variable: QQ18_DE (Bank 2)

The recursive token table for tokens 0-148 (German)

Variable: QQ18_FR (Bank 2)

The recursive token table for tokens 0-148 (French)

Variable: rutokLo (Bank 2)

Address lookup table for the RUTOK text token table in three different languages (low byte)

Variable: rutokHi (Bank 2)

Address lookup table for the RUTOK text token table in three different languages (high byte)

Subroutine: DETOK3 (Bank 2)

Print an extended recursive token from the RUTOK token table

Subroutine: DETOK (Bank 2)

Print an extended recursive token from the TKN1 token table

Subroutine: DETOK2 (Bank 2)

Print an extended text token (1-255)

Variable: JMTB (Bank 2)

The extended token table for jump tokens 1-32 (DETOK)

Variable: MTIN (Bank 2)

Lookup table for random tokens in the extended token table (0-37)

Subroutine: MT27 (Bank 2)

Print the captain's name during mission briefings

Subroutine: MT28 (Bank 2)

Print the location hint during the mission 1 briefing

Subroutine: MT1 (Bank 2)

Switch to ALL CAPS when printing extended tokens

Subroutine: MT2 (Bank 2)

Switch to Sentence Case when printing extended tokens

Subroutine: MT8 (Bank 2)

Tab to column 6 and start a new word when printing extended tokens

Subroutine: MT16 (Bank 2)

Print the character in variable DTW7

Subroutine: FILEPR (Bank 2)

Display the currently selected media (disc or tape)

Subroutine: OTHERFILEPR (Bank 2)

Display the non-selected media (disc or tape)

Subroutine: MT9 (Bank 2)

Clear the screen and set the view type for a text-based mission

Subroutine: MT6 (Bank 2)

Switch to standard tokens in Sentence Case

Subroutine: MT5 (Bank 2)

Switch to extended tokens

Subroutine: MT14 (Bank 2)

Switch to justified text when printing extended tokens

Subroutine: MT15 (Bank 2)

Switch to left-aligned text when printing extended tokens

Subroutine: MT17 (Bank 2)

Print the selected system's adjective, e.g. Lavian for Lave

Subroutine: MT18 (Bank 2)

Print a random 1-8 letter word in Sentence Case

Subroutine: MT26 (Bank 2)

Print a space and capitalise the next letter

Subroutine: MT19 (Bank 2)

Capitalise the next letter

Subroutine: VOWEL (Bank 2)

Test whether a character is a vowel

Variable: TKN2 (Bank 2)

The extended two-letter token lookup table

Variable: QQ16 (Bank 2)

The two-letter token lookup table

Subroutine: BRIS (Bank 2)

Clear the screen, display "INCOMING MESSAGE" and wait for 2 seconds

Subroutine: PAUSE (Bank 2)

Display a rotating ship, waiting until a key is pressed, then remove the ship from the screen

Subroutine: MT23 (Bank 2)

Move to row 9 and switch to lower case when printing extended tokens

Subroutine: MT29 (Bank 2)

Move to row 7 and switch to lower case when printing extended tokens

Subroutine: MT13 (Bank 2)

Switch to lower case when printing extended tokens

Subroutine: PAUSE2 (Bank 2)

Wait until a key is pressed, ignoring any existing key press

Variable: ruplaLo (Bank 2)

Address lookup table for the RUPLA text token table in three different languages (low byte)

Variable: ruplaHi (Bank 2)

Address lookup table for the RUPLA text token table in three different languages (high byte)

Variable: rugalLo (Bank 2)

Address lookup table for the RUGAL text token table in three different languages (low byte)

Variable: rugalHi (Bank 2)

Address lookup table for the RUGAL text token table in three different languages (high byte)

Variable: NRU (Bank 2)

The number of planetary systems with extended system description overrides in the RUTOK table (NRU%) in three different languages

Subroutine: PDESC (Bank 2)

Print the system's extended description or a mission 1 directive

Subroutine: TT27 (Bank 2)

Print a text token

Subroutine: TT42 (Bank 2)

Print a letter in lower case

Subroutine: TT41 (Bank 2)

Print a letter according to Sentence Case

Subroutine: qw (Bank 2)

Print a recursive token in the range 128-145

Subroutine: TT45 (Bank 2)

Print a letter in lower case

Subroutine: TT43 (Bank 2)

Print a two-letter token or recursive token 0-95

Subroutine: ex (Bank 2)

Print a recursive token

Subroutine: TT26 (Bank 2)

Print a character at the text cursor, with support for verified text in extended tokens

Subroutine: BELL (Bank 2)

Make a standard system beep

Subroutine: CHPR (Part 1 of 6) (Bank 2)

Print a character at the text cursor by poking into screen memory

Subroutine: CHPR (Part 2 of 6) (Bank 2)

Jump to the right part of the routine depending on whether the font pattern we need is already loaded

Subroutine: CHPR (Part 3 of 6) (Bank 2)

Draw a character into the pattern buffers to show the character on-screen

Subroutine: CHPR (Part 4 of 6) (Bank 2)

Process the delete character

Subroutine: CHPR (Part 5 of 6) (Bank 2)

Print the character using a font that has already been loaded

Subroutine: CHPR (Part 6 of 6) (Bank 2)

Print a character in the space view when the relevant font is not loaded, merging the text with whatever is already on-screen

Variable: lowerCase (Bank 2)

Lookup table for converting ASCII characters to lower case characters in the game's text font

Variable: Vectors_b2 (Bank 2)

Vectors and padding at the end of ROM bank 2

Subroutine: ResetMMC1_b3 (Bank 3)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: Interrupts_b3 (Bank 3)

The IRQ and NMI handler while the MMC1 mapper reset routine is still running

Variable: versionNumber_b3 (Bank 3)

The game's version number in bank 3

Variable: Copyright and version message (Bank 3)

A copyright and version message buried in the code

Variable: iconBarImage0 (Bank 3)

Image data for icon bar 0 (Docked)

Variable: iconBarImage1 (Bank 3)

Image data for icon bar 1 (Flight)

Variable: iconBarImage2 (Bank 3)

Image data for icon bar 2 (Charts)

Variable: iconBarImage3 (Bank 3)

Image data for icon bar 3 (Pause)

Variable: iconBarImage4 (Bank 3)

Image data for icon bar 4 (Title screen copyright message)

Variable: barNames0 (Bank 3)

Nametable entries for icon bar 0 (Docked)

Variable: barNames1 (Bank 3)

Nametable entries for icon bar 1 (Flight)

Variable: barNames2 (Bank 3)

Nametable entries for icon bar 2 (Charts)

Variable: barNames3 (Bank 3)

Nametable entries for icon bar 3 (Pause)

Variable: barNames4 (Bank 3)

Nametable entries for icon bar 4 (Title screen copyright message)

Variable: dashNames (Bank 3)

Nametable entries for the dashboard

Variable: dashImage (Bank 3)

Packed image data for the dashboard

Variable: cobraImage (Bank 3)

Packed image data for the Cobra Mk III shown on the Equip Ship screen

Variable: inventoryIcon (Bank 3)

Image data for the inventory icon shown on the icon bar in the Market Price screen

Variable: smallLogoImage (Bank 3)

Packed image data for the small Elite logo shown on the Save and Load screen

Variable: logoBallImage (Bank 3)

Packed image data for the ball at the bottom of the big Elite logo shown on the Start screen

Subroutine: DrawDashNames (Bank 3)

Draw the dashboard into both the nametable buffers

Subroutine: ResetScanner (Bank 3)

Reset the sprites used for drawing ships on the scanner

Subroutine: SendViewToPPU (Bank 3)

Configure the PPU for the view type in QQ11

Subroutine: SendFontImageToPPU (Bank 3)

Send a font to the PPU as a colour 1 font on a colour 0 background (i.e. colour 1 on black)

Subroutine: SendDashImageToPPU (Bank 3)

Unpack the dashboard image and send it to patterns 69 to 255 in pattern table 0 in the PPU

Subroutine: SendBitplaneToPPU (Bank 3)

Send a bitplane to the PPU immediately

Subroutine: SendDataNowToPPU (Bank 3)

Send the specified bitplane buffers to the PPU immediately, without trying to squeeze it into VBlanks

Subroutine: SetupViewInNMI (Bank 3)

Setup the view and configure the NMI to send both bitplanes to the PPU during VBlank

Variable: paletteForView (Bank 3)

Palette numbers for each view

Variable: boxEdgeImages (Bank 3)

Image data for patterns 0 to 4

Subroutine: ResetScreen (Bank 3)

Reset the screen by clearing down the PPU, setting all colours to black, and resetting the screen-related variables

Subroutine: SetIconBarRow (Bank 3)

Set the row on which the icon bar appears, which depends on the view type

Subroutine: ShowIconBar (Bank 3)

Show a specified icon bar on-screen

Subroutine: UpdateIconBar (Bank 3)

Update the icon bar

Subroutine: SetupSprite0 (Bank 3)

Set the coordinates of sprite 0 so we can detect when the PPU starts to draw the icon bar

Subroutine: BlankAllButtons (Bank 3)

Blank all the buttons on the icon bar

Subroutine: BlankButtons6To11 (Bank 3)

Blank from the sixth to the eleventh button on the icon bar

Subroutine: BlankButtons8To11 (Bank 3)

Blank from the eighth to the eleventh button on the icon bar

Subroutine: DrawIconBar (Bank 3)

Draw the icon bar into the nametable buffers for both bitplanes

Subroutine: HideIconBar (Bank 3)

Remove the icon bar from the screen by replacing it with background tiles

Subroutine: SetupIconBarPause (Bank 3)

Set up the game options shown on the icon bar when the game is paused

Subroutine: SetIconBarButtonsS (Bank 3)

Set the correct list of button numbers for the icon bar (this is a jump so we can call this routine using a branch instruction)

Subroutine: SetupIconBar (Bank 3)

Set up the icons on the icon bar to show all available options

Subroutine: SetupIconBarFlight (Bank 3)

Set up the Flight icon bar

Subroutine: SetupIconBarDocked (Bank 3)

Set up the Docked icon bar

Subroutine: SetIconBarButtons (Bank 3)

Set the correct list of button numbers for the icon bar

Subroutine: SetupIconBarCharts (Bank 3)

Set up the Charts icon bar

Subroutine: DrawBlankButton2x2 (Bank 3)

Draw a blank icon bar button as a 2x2 tile block

Subroutine: DrawBlankButton3x2 (Bank 3)

Draw a blank icon bar button as a 3x2 tile block

Subroutine: Draw6OptionTiles (Bank 3)

Draw six tiles over the top of an icon bar button in the Pause icon bar to change an option icon to a non-default state

Subroutine: Draw4OptionTiles (Bank 3)

Draw four tiles over the top of an icon bar button in the Pause icon bar to change an option icon to a non-default state

Subroutine: Draw2OptionTiles (Bank 3)

Draw a top and bottom tile over the top of an icon bar button in the Pause icon bar to change an option icon to a non-default state

Subroutine: SetLinePatterns (Bank 3)

Copy the patterns for horizontal line, vertical line and block images into the pattern buffers, depending on the view

Subroutine: LoadNormalFont (Bank 3)

Load the normal font into the pattern buffer from pattern 66 to 160

Subroutine: LoadHighFont (Bank 3)

Load the highlight font into the pattern buffer from pattern 161 to 255

Subroutine: DrawSystemImage (Bank 3)

Draw the system image as a coloured foreground in front of a greyscale background

Subroutine: DrawImageFrame (Bank 3)

Draw a frame around the system image or commander headshot

Subroutine: DrawRowOfTiles (Bank 3)

Draw a row of tiles into the nametable buffer

Subroutine: GetNameAddress (Bank 3)

Get the addresses in the nametable buffers for a given tile

Subroutine: DrawSmallBox (Bank 3)

Draw a small box, typically used for popups or outlines

Subroutine: DrawBackground (Bank 3)

Draw the background of a system or commander image into the nametable buffer

Subroutine: ClearScreen (Bank 3)

Clear the screen by clearing patterns 66 to 255 in both pattern buffers, and clearing both nametable buffers to the background

Variable: viewPalettes (Bank 3)

The palettes to use for the different views

Variable: fadeColours (Bank 3)

Lookup table that converts a NES colour to the same colour but with a smaller brightness value

Subroutine: GetViewPalettes (Bank 3)

Get the palette for the view type in QQ11a and store it in a table at XX3

Subroutine: FadeColoursTwice (Bank 3)

Fade the screen colours towards black twice

Subroutine: FadeColours (Bank 3)

Fade the screen colours towards black

Subroutine: SetPaletteColours (Bank 3)

Set the view's palette from the entries in the XX3 palette table

Subroutine: FadeToBlack (Bank 3)

Fade the screen to black over the next four VBlanks

Subroutine: FadeToColour (Bank 3)

Reverse-fade the screen from black to full colour over the next four VBlanks

Variable: systemPalettes (Bank 3)

Palettes for the system images

Variable: viewAttrCount (Bank 3)

The number of sets of view attributes in the viewAttrOffset table

Variable: viewAttrOffset (Bank 3)

Offset to the data for each of the 24 sets of view attributes

Variable: viewAttributes0 (Bank 3)

Packed view attribute data for attribute set 0

Variable: viewAttributes1 (Bank 3)

Packed view attribute data for attribute set 1

Variable: viewAttributes2 (Bank 3)

Packed view attribute data for attribute set 2

Variable: viewAttributes3 (Bank 3)

Packed view attribute data for attribute set 3

Variable: viewAttributes4 (Bank 3)

Packed view attribute data for attribute set 4

Variable: viewAttributes5 (Bank 3)

Packed view attribute data for attribute set 5

Variable: viewAttributes6 (Bank 3)

Packed view attribute data for attribute set 6

Variable: viewAttributes7 (Bank 3)

Packed view attribute data for attribute set 7

Variable: viewAttributes8 (Bank 3)

Packed view attribute data for attribute set 8

Variable: viewAttributes9 (Bank 3)

Packed view attribute data for attribute set 9

Variable: viewAttributes10 (Bank 3)

Packed view attribute data for attribute set 10

Variable: viewAttributes11 (Bank 3)

Packed view attribute data for attribute set 11

Variable: viewAttributes12 (Bank 3)

Packed view attribute data for attribute set 12

Variable: viewAttributes13 (Bank 3)

Packed view attribute data for attribute set 13

Variable: viewAttributes14 (Bank 3)

Packed view attribute data for attribute set 14

Variable: viewAttributes15 (Bank 3)

Packed view attribute data for attribute set 15

Variable: viewAttributes16 (Bank 3)

Packed view attribute data for attribute set 16

Variable: viewAttributes17 (Bank 3)

Packed view attribute data for attribute set 17

Variable: viewAttributes18 (Bank 3)

Packed view attribute data for attribute set 18

Variable: viewAttributes19 (Bank 3)

Packed view attribute data for attribute set 19

Variable: viewAttributes20 (Bank 3)

Packed view attribute data for attribute set 20

Variable: viewAttributes21 (Bank 3)

Packed view attribute data for attribute set 21

Variable: viewAttributes22 (Bank 3)

Packed view attribute data for attribute set 22

Variable: viewAttributes23 (Bank 3)

Packed view attribute data for attribute set 23

Variable: viewAttributes_EN (Bank 3)

The view attributes to use for each view type in English

Variable: viewAttributes_DE (Bank 3)

The view attributes to use for each view type in German

Variable: viewAttributes_FR (Bank 3)

The view attributes to use for each view type in French

Variable: viewAttributesLo (Bank 3)

The low byte of the view attributes lookup table for each language

Variable: viewAttributesHi (Bank 3)

The high byte of the view attributes lookup table for each language

Subroutine: SetViewAttrs (Bank 3)

Set up attribute buffer 0 for the chosen view

Subroutine: HideSightSprites (Bank 3)

Hide the sprites for the laser sights in the space view

Subroutine: SIGHT (Bank 3)

Draw the laser crosshairs

Variable: Vectors_b3 (Bank 3)

Vectors and padding at the end of ROM bank 3

Subroutine: ResetMMC1_b4 (Bank 4)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: Interrupts_b4 (Bank 4)

The IRQ and NMI handler while the MMC1 mapper reset routine is still running

Variable: versionNumber_b4 (Bank 4)

The game's version number in bank 4

Variable: faceCount (Bank 4)

The number of commander face images in the faceOffset table

Variable: faceOffset (Bank 4)

Offset to the data for each of the 14 commander face images

Variable: faceImage0 (Bank 4)

Packed image data for commander face image 0

Variable: faceImage1 (Bank 4)

Packed image data for commander face image 1

Variable: faceImage2 (Bank 4)

Packed image data for commander face image 2

Variable: faceImage3 (Bank 4)

Packed image data for commander face image 3

Variable: faceImage4 (Bank 4)

Packed image data for commander face image 4

Variable: faceImage5 (Bank 4)

Packed image data for commander face image 5

Variable: faceImage6 (Bank 4)

Packed image data for commander face image 6

Variable: faceImage7 (Bank 4)

Packed image data for commander face image 7

Variable: faceImage8 (Bank 4)

Packed image data for commander face image 8

Variable: faceImage9 (Bank 4)

Packed image data for commander face image 9

Variable: faceImage10 (Bank 4)

Packed image data for commander face image 10

Variable: faceImage11 (Bank 4)

Packed image data for commander face image 11

Variable: faceImage12 (Bank 4)

Packed image data for commander face image 12

Variable: faceImage13 (Bank 4)

Packed image data for commander face image 13

Variable: headCount (Bank 4)

The number of commander headshot images in the headOffset table

Variable: headOffset (Bank 4)

Offset to the data for each of the 14 commander headshot images

Variable: headImage0 (Bank 4)

Packed image data for commander headshot image 0

Variable: headImage1 (Bank 4)

Packed image data for commander headshot image 1

Variable: headImage2 (Bank 4)

Packed image data for commander headshot image 2

Variable: headImage3 (Bank 4)

Packed image data for commander headshot image 3

Variable: headImage4 (Bank 4)

Packed image data for commander headshot image 4

Variable: headImage5 (Bank 4)

Packed image data for commander headshot image 5

Variable: headImage6 (Bank 4)

Packed image data for commander headshot image 6

Variable: headImage7 (Bank 4)

Packed image data for commander headshot image 7

Variable: headImage8 (Bank 4)

Packed image data for commander headshot image 8

Variable: headImage9 (Bank 4)

Packed image data for commander headshot image 9

Variable: headImage10 (Bank 4)

Packed image data for commander headshot image 10

Variable: headImage11 (Bank 4)

Packed image data for commander headshot image 11

Variable: headImage12 (Bank 4)

Packed image data for commander headshot image 12

Variable: headImage13 (Bank 4)

Packed image data for commander headshot image 13

Variable: glassesImage (Bank 4)

Packed image data for the glasses, earrings and medallion that the commander can wear

Variable: bigLogoImage (Bank 4)

Packed image data for the big Elite logo shown on the Start screen

Variable: bigLogoNames (Bank 4)

Nametable entries for the big Elite logo on the Start screen

Variable: smallLogoTile (Bank 4)

Pattern numbers in the smallLogoImage table for the sprites that make up the small Elite logo on the Save and Load screen

Variable: cobraNames (Bank 4)

Nametable entries for the Cobra Mk III shown on the Equip Ship screen

Subroutine: GetHeadshotType (Bank 4)

Get the correct headshot number for the current combat rank and status condition

Variable: headShotsByRank (Bank 4)

Lookup table for headshots by rank and status condition

Subroutine: GetHeadshot (Bank 4)

Fetch the headshot image for the commander and store it in the pattern buffers, starting at pattern number picturePattern

Subroutine: GetCmdrImage (Bank 4)

Fetch the headshot image for the commander and store it in the pattern buffers, and send the face and glasses images to the PPU

Subroutine: DrawBigLogo (Bank 4)

Set the pattern and nametable buffer entries for the big Elite logo on the Start screen

Subroutine: DrawImageNames (Bank 4)

Set the nametable buffer entries for the specified image

Subroutine: DrawSmallLogo (Bank 4)

Set the sprite buffer entries for the small Elite logo on the Save and Load screen

Variable: Vectors_b4 (Bank 4)

Vectors and padding at the end of ROM bank 4

Subroutine: ResetMMC1_b5 (Bank 5)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: Interrupts_b5 (Bank 5)

The IRQ and NMI handler while the MMC1 mapper reset routine is still running

Variable: versionNumber_b5 (Bank 5)

The game's version number in bank 5

Variable: systemCount (Bank 5)

The number of system images in the systemOffset table

Variable: systemOffset (Bank 5)

Offset to the data for each of the 15 system images

Variable: systemImage0 (Bank 5)

Packed image data for system image 0

Variable: systemImage1 (Bank 5)

Packed image data for system image 1

Variable: systemImage2 (Bank 5)

Packed image data for system image 2

Variable: systemImage3 (Bank 5)

Packed image data for system image 3

Variable: systemImage4 (Bank 5)

Packed image data for system image 4

Variable: systemImage5 (Bank 5)

Packed image data for system image 5

Variable: systemImage6 (Bank 5)

Packed image data for system image 6

Variable: systemImage7 (Bank 5)

Packed image data for system image 7

Variable: systemImage8 (Bank 5)

Packed image data for system image 8

Variable: systemImage9 (Bank 5)

Packed image data for system image 9

Variable: systemImage10 (Bank 5)

Packed image data for system image 10

Variable: systemImage11 (Bank 5)

Packed image data for system image 11

Variable: systemImage12 (Bank 5)

Packed image data for system image 12

Variable: systemImage13 (Bank 5)

Packed image data for system image 13

Variable: systemImage14 (Bank 5)

Packed image data for system image 14

Variable: Copyright message (Bank 5)

A copyright message buried in the code, complete with typo

Subroutine: GetSystemImage (Bank 5)

Fetch the background image and foreground sprite for the current system image and send them to the pattern buffers and PPU

Subroutine: GetSystemBack (Bank 5)

Fetch the background image for the current system and store it in the pattern buffers

Subroutine: SetDemoAutoPlay (Bank 5)

Set up the NMI handler to automatically play the demo using the controller key presses in the autoPlayKeys table

Variable: autoPlayKeys1Lo (Bank 5)

Low byte of the address of the auto-play key table for each language

Variable: autoPlayKeys1Hi (Bank 5)

High byte of the address of the auto-play key table for each language

Variable: Vectors_b5 (Bank 5)

Vectors and padding at the end of ROM bank 5

Subroutine: ResetMMC1_b6 (Bank 6)

The MMC1 mapper reset routine at the start of the ROM bank

Subroutine: Interrupts_b6 (Bank 6)

The IRQ and NMI handler while the MMC1 mapper reset routine is still running

Variable: versionNumber_b6 (Bank 6)

The game's version number in bank 6

Subroutine: ChooseMusicS (Bank 6)

A jump table entry at the start of bank 6 for the ChooseMusic routine

Subroutine: MakeSoundsS (Bank 6)

A jump table entry at the start of bank 6 for the MakeSounds routine

Subroutine: StopSoundsS (Bank 6)

A jump table entry at the start of bank 6 for the StopSounds routine

Subroutine: EnableSoundS (Bank 6)

A jump table entry at the start of bank 6 for the EnableSound routine

Subroutine: StartEffectOnSQ1S (Bank 6)

A jump table entry at the start of bank 6 for the StartEffectOnSQ1 routine

Subroutine: StartEffectOnSQ2S (Bank 6)

A jump table entry at the start of bank 6 for the StartEffectOnSQ2 routine

Subroutine: StartEffectOnNOISES (Bank 6)

A jump table entry at the start of bank 6 for the StartEffectOnNOISE routine

Subroutine: ChooseMusic (Bank 6)

Set the tune for the background music

Subroutine: EnableSound (Bank 6)

Enable sounds (music and sound effects)

Subroutine: StopSounds (Bank 6)

Stop all sounds (music and sound effects)

Subroutine: MakeSounds (Bank 6)

Make the current sounds (music and sound effects)

Subroutine: MakeMusic (Bank 6)

Play the current music on the SQ1, SQ2, TRI and NOISE channels

Subroutine: MakeMusicOnSQ1 (Bank 6)

Play the current music on the SQ1 channel

Subroutine: ApplyEnvelopeSQ1 (Bank 6)

Apply volume and pitch changes to the SQ1 channel

Subroutine: MakeMusicOnSQ2 (Bank 6)

Play the current music on the SQ2 channel

Subroutine: ApplyEnvelopeSQ2 (Bank 6)

Apply volume and pitch changes to the SQ2 channel

Subroutine: MakeMusicOnTRI (Bank 6)

Play the current music on the TRI channel

Subroutine: ApplyEnvelopeTRI (Bank 6)

Apply volume and pitch changes to the TRI channel

Subroutine: MakeMusicOnNOISE (Bank 6)

Play the current music on the NOISE channel

Subroutine: ApplyEnvelopeNOISE (Bank 6)

Apply volume and pitch changes to the NOISE channel

Variable: noteFrequency (Bank 6)

A table of note frequencies

Subroutine: StartEffectOnSQ1 (Bank 6)

Make a sound effect on the SQ1 channel

Subroutine: StartEffect (Bank 6)

Start making a sound effect on the specified channel

Subroutine: StartEffectOnSQ2 (Bank 6)

Make a sound effect on the SQ2 channel

Subroutine: StartEffectOnNOISE (Bank 6)

Make a sound effect on the NOISE channel

Subroutine: MakeSound (Bank 6)

Make the current sound effects on the SQ1, SQ2 and NOISE channels

Subroutine: MakeSoundOnSQ1 (Bank 6)

Make the current sound effect on the SQ1 channel

Subroutine: MakeSoundOnSQ2 (Bank 6)

Make the current sound effect on the SQ2 channel

Subroutine: MakeSoundOnNOISE (Bank 6)

Make the current sound effect on the NOISE channel

Subroutine: UpdateVibratoSeeds (Bank 6)

Update the sound seeds that are used to randomise the vibrato effect

Variable: soundData (Bank 6)

Sound data for the sound effects

Variable: soundVolume (Bank 6)

Volume envelope data for the sound effects

Variable: volumeEnvelope (Bank 6)

Volume envelope data for the game music

Variable: pitchEnvelope (Bank 6)

Pitch envelope data for the game music

Variable: tuneData (Bank 6)

Data for the tunes played in the game

Subroutine: DrawGlasses (Bank 6)

Draw a pair of dark glasses on the commander image

Subroutine: DrawRightEarring (Bank 6)

Draw an earring in the commander's right ear (i.e. on the left side of the commander image

Subroutine: DrawLeftEarring (Bank 6)

Draw an earring in the commander's left ear (i.e. on the right side of the commander image

Subroutine: DrawMedallion (Bank 6)

Draw a medallion on the commander image

Subroutine: DrawCmdrImage (Bank 6)

Draw the commander image as a coloured face image in front of a greyscale headshot image, with optional embellishments

Subroutine: DrawSpriteImage (Bank 6)

Draw an image out of sprites using patterns in sequential tiles in the pattern buffer

Subroutine: PauseGame (Bank 6)

Pause the game and process choices from the pause menu until the game is unpaused by another press of Start

Subroutine: DILX (Bank 6)

Update a bar-based indicator on the dashboard

Subroutine: DIALS (Bank 6)

Update the dashboard

Variable: conditionAttrs (Bank 6)

Sprite attributes for the status condition indicator on the dashboard

Variable: conditionPatts (Bank 6)

Pattern numbers for the status condition indicator on the dashboard

Subroutine: MSBAR_b6 (Bank 6)

Draw a specific indicator in the dashboard's missile bar

Variable: missileNames_b6 (Bank 6)

Tile numbers for the four missile indicators on the dashboard, as offsets from the start of tile row 22

Subroutine: SetEquipmentSprite (Bank 6)

Set up the sprites in the sprite buffer for a specific bit of equipment to show on our Cobra Mk III on the Equip Ship screen

Subroutine: SetLaserSprite (Bank 6)

Set up the sprites in the sprite buffer for a specific laser to show on our Cobra Mk III on the Equip Ship screen

Subroutine: GetLaserPattern (Bank 6)

Get the pattern number for a specific laser's equipment sprite

Variable: equipSprites (Bank 6)

Sprite configuration data for the sprites that show the equipment fitted to our Cobra Mk III on the Equip Ship screen

Subroutine: DrawEquipment (Bank 6)

Draw the currently fitted equipment onto the Cobra Mk III image on the Equip Ship screen

Subroutine: ShowScrollText (Bank 6)

Show a scroll text and start the combat demo

Subroutine: DrawScrollInNMI (Bank 6)

Configure the NMI handler to draw the scroll text screen

Subroutine: GRIDSET (Bank 6)

Populate the line coordinate tables with the pixel lines for one 21-character line of scroll text

Subroutine: GRS1 (Bank 6)

Populate the line coordinate tables with the lines for a single scroll text character

Subroutine: CalculateGridLines (Bank 6)

Reset the line coordinate tables and populate them with the characters for a specified scroll text

Subroutine: GetScrollDivisions (Bank 6)

Set up the division calculations for the scroll text

Subroutine: DrawScrollText (Bank 6)

Display a Star Wars scroll text

Subroutine: DrawScrollFrames (Bank 6)

Draw a scroll text over multiple frames

Subroutine: ScrollTextUpScreen (Bank 6)

Go through the line y-coordinate table at Y1TB, moving each line coordinate up the screen by W2Y (i.e. by one full line of text)

Subroutine: ProjectScrollText (Bank 6)

Project a scroll text coordinate onto the screen

Subroutine: DrawScrollFrame (Bank 6)

Draw one frame of the scroll text

Variable: LTDEF (Bank 6)

Line definitions for characters in the Star Wars scroll text

Variable: NOFX (Bank 6)

The x-coordinates of the scroll text letter grid

Variable: NOFY (Bank 6)

The y-coordinates of the scroll text letter grid

Variable: scrollText1Lo (Bank 6)

Lookup table for the low byte of the address of the scrollText1 text for each language

Variable: scrollText1Hi (Bank 6)

Lookup table for the high byte of the address of the scrollText1 text for each language

Variable: scrollText2Lo (Bank 6)

Lookup table for the low byte of the address of the scrollText2 text for each language

Variable: scrollText2Hi (Bank 6)

Lookup table for the high byte of the address of the scrollText2 text for each language

Variable: creditsText1Lo (Bank 6)

Lookup table for the low byte of the address of the creditsText1 text for each language

Variable: creditsText1Hi (Bank 6)

Lookup table for the high byte of the address of the creditsText1 text for each language

Variable: creditsText2Lo (Bank 6)

Lookup table for the low byte of the address of the creditsText2 text for each language

Variable: creditsText2Hi (Bank 6)

Lookup table for the high byte of the address of the creditsText2 text for each language

Variable: creditsText3Lo (Bank 6)

Lookup table for the low byte of the address of the creditsText3 text for each language

Variable: creditsText3Hi (Bank 6)

Lookup table for the high byte of the address of the creditsText3 text for each language

Variable: scrollText1_EN (Bank 6)

Text for the first scroll text in English

Variable: scrollText2_EN (Bank 6)

Text for the second scroll text in English

Variable: scrollText1_FR (Bank 6)

Text for the first scroll text in French

Variable: scrollText2_FR (Bank 6)

Text for the second scroll text in French

Variable: scrollText1_DE (Bank 6)

Text for the first scroll text in German

Variable: scrollText2_DE (Bank 6)

Text for the second scroll text in German

Variable: creditsText1 (Bank 6)

Text for the first part of the credits scroll text

Variable: creditsText2 (Bank 6)

Text for the second part of the credits scroll text

Variable: creditsText3 (Bank 6)

Text for the third part of the credits scroll text

Subroutine: saveHeader1_EN (Bank 6)

The Save and Load screen title in English

Subroutine: saveHeader2_EN (Bank 6)

The subheaders for the Save and Load screen title in English

Subroutine: saveHeader1_DE (Bank 6)

The Save and Load screen title in German

Subroutine: saveHeader2_DE (Bank 6)

The subheaders for the Save and Load screen title in German

Subroutine: saveHeader1_FR (Bank 6)

The Save and Load screen title in French

Subroutine: saveHeader2_FR (Bank 6)

The subheaders for the Save and Load screen title in French

Variable: xSaveHeader (Bank 6)

The text column for the Save and Load screen headers for each language

Variable: saveHeader1Lo (Bank 6)

Lookup table for the low byte of the address of the saveHeader1 text for each language

Variable: saveHeader1Hi (Bank 6)

Lookup table for the high byte of the address of the saveHeader1 text for each language

Variable: saveHeader2Lo (Bank 6)

Lookup table for the low byte of the address of the saveHeader2 text for each language

Variable: saveHeader2Hi (Bank 6)

Lookup table for the high byte of the address of the saveHeader2 text for each language

Variable: saveBracketPatts (Bank 6)

Pattern numbers for the bracket on the Save and Load screen

Subroutine: PrintSaveHeader (Bank 6)

Print header text for the Save and Load screen

Subroutine: SVE (Bank 6)

Display the Save and Load screen and process saving and loading of commander files

Subroutine: MoveInLeftColumn (Bank 6)

Process moving the highlight when it's in the left column (the current commander)

Subroutine: CheckSaveLoadBar (Bank 6)

Check the icon bar buttons on the Save and Load icon bar and process any choices

Subroutine: WaitForNoDirection (Bank 6)

Wait until the left and right buttons on controller 1 have been released and remain released for at least four VBlanks

Subroutine: MoveToLeftColumn (Bank 6)

Move the highlight to the left column (the current commander)

Subroutine: MoveInRightColumn (Bank 6)

Process moving the highlight when it's in the right column (the save slots)

Subroutine: MoveInMiddleColumn (Bank 6)

Process moving the highlight when it's in the middle column

Subroutine: DrawSaveSlotMark (Bank 6)

Draw a slot mark (a dash) next to a saved slot

Subroutine: PrintSaveName (Bank 6)

Print the name of a specific save slot

Subroutine: PrintCommanderName (Bank 6)

Print the commander name from the commander file in BUF, with the save count added to the end

Subroutine: HighlightSaveName (Bank 6)

Highlight the name of a specific save slot

Subroutine: UpdateSaveScreen (Bank 6)

Update the Save and Load screen

Subroutine: PrintNameInMiddle (Bank 6)

Print the commander name in the middle column using the highlight font