snake6502/src/main.asm

104 lines
2.5 KiB
NASM

processor 6502
; Platform specific code
; Code yet to be developed, example to use:
; ----------------------------------------------------------------------
#if SYSTEM = 64
; Commodore64 specific code
#else
; Commodore16 specific code
#endif
; Uninitialized zeropage segment
; ----------------------------------------------------------------------
SEG.U zeropageSegment
org $02
INCLUDE "zeropage.asm"
#if DEBUG = 1
; Locations $90-$FF in zeropage are used by kernal
ECHO "End of zeropage variables. Space left: ",($90 - .)
#endif
; Initialized segments
; ----------------------------------------------------------------------
SEG constSegment
org $801
INCLUDE "basic.asm" ; BASIC must stay at this address
INCLUDE "initdata.asm"
#if DEBUG = 1
ECHO "End of Initialized Data (const) + Basic Segment. Space left: ",($1000 - .)
#endif
; SID tune (previously properly cleaned, see HVSC)
; ----------------------------------------------------------------------
SEG sidSegment
org $1000
sidtune:
INCBIN "../res.bin/amour.sid"
#if DEBUG = 1
ECHO "End of SIDtune. Space left: ",($2000 - .)
#endif
; Font Data
; ----------------------------------------------------------------------
SEG tggsSegment
org $2000
; This binary data that defines the font is exactly 2kB long ($800)
tggsFont:
INCLUDE "tggs.asm"
; Include program
; ----------------------------------------------------------------------
SEG programSegment
org $2800
jmp start
INCLUDE "game.asm"
INCLUDE "gameover.asm"
INCLUDE "levelreset.asm"
INCLUDE "introreset.asm"
INCLUDE "intro1.asm"
INCLUDE "multicolor.asm"
INCLUDE "outro.asm"
INCLUDE "program.asm"
INCLUDE "subroutines.asm"
INCLUDE "levels.asm"
#if DEBUG = 1
ECHO "End of program at: ",.,"Space left:",($cd00 - .)
#endif
#if DEBUG = 1
; +2 because of PRG header
ECHO "PRG size:",([. - $801 + 2]d),"dec"
#endif
; Uninitialized segments
; ----------------------------------------------------------------------
; Data variables
; -----------------
SEG.U dataSegment
org $cd00
INCLUDE "data.asm"
# if DEBUG = 1
ECHO "End of Data segment. Space left:",($ce00 - .)
#endif
; Lists
; -----------------
SEG.U listSegment
org $ce00
listX DS 256
listY DS 256
;
; coded during december 2017
; by giomba -- giomba at glgprograms.it
; this software is free software and is distributed
; under the terms of GNU GPL v3 license
;
; vim: set expandtab tabstop=4 shiftwidth=4: