Skip to navigation

⌂ ∞ ▽ Elite on the BBC Micro and NES

Dashboard: PZW2

[6502 Second Processor version, I/O processor]

       Name: PZW2                                                    [Show more]
       Type: Subroutine
   Category: Dashboard
    Summary: Fetch the current dashboard colours for non-striped indicators, to
             support flashing

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * DIALS (Part 1 of 4) calls PZW2
             * DIALS (Part 4 of 4) calls PZW2




.PZW2

 LDX #WHITE2            \ Set X to white, so we can return that as the safe
                        \ colour in PZW below

 EQUB &2C               \ Skip the next instruction by turning it into
                        \ &2C &A9 &23, or BIT &23A9, which does nothing apart
                        \ from affect the flags

                        \ Fall through into PZW to fetch the current dashboard
                        \ colours, returning white for safe colours rather than
                        \ stripes