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⌂ ∞ ▽ Elite on the BBC Micro and NES

Loader: ROM

[BBC Micro disc version, Sideways RAM Loader]

       Name: ROM                                                     [Show more]
       Type: Variable
   Category: Loader
    Summary: The ROM header code that forms the first part of the sideways RAM
             image containing the ship blueprint files

    Context: See this variable in context in the source code
 References: This variable is used as follows:
             * MakeRom uses ROM




.ROM

 JMP srom1              \ Language entry point

 JMP srom1              \ Service entry point

 EQUB %10000001         \ The ROM type:
                        \
                        \   * Bit 7 set = ROM contains a service entry
                        \
                        \   * Bits 0-3 = ROM CPU type (1 = Turbo6502)

 EQUB romCopy - ROM     \ Offset to copyright string

 EQUB 0                 \ Version number

.romTitle

 EQUS "SRAM ELITE"      \ The ROM title

.romCopy

 EQUB 0                 \ NULL and "(C)", required for the MOS to recognise the
 EQUS "(C)Acornsoft"    \ ROM
 EQUB 0

.srom1

 RTS                    \ Return from the subroutine, so the language and
                        \ service entry points do nothing