4cade/src/demo/firebug.a
frankmilliron 35509c7666
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2021-10-26 20:11:02 -04:00

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;license:MIT
;(c) 2021 by Frank M.
!cpu 6502
!to "res/DEMO/FIREBUG",plain
*=$200
!source "src/constants.a" ; no code in these
!source "src/macros.a"
+READ_RAM2_WRITE_RAM2
jsr EnableAccelerator
+LOAD_FILE_AT title, $00
lda #$2C
sta $2070 ; don't load "RECORD" (demo doesn't show high scores)
lda #$60
sta $2076
jsr $2000 ; decompress
lda #0
sta $83E
lda #1
sta $849 ; reset vector fix
lda #$4C
sta $1105
sta $151A
sta $5EA5
sta $5F3B
sta $5F46
lda #0
sta $1105+1
sta $151A+1
sta $5EA5+1
sta $5F3B+1
sta $5F46+1
lda #1
sta $1105+2
sta $151A+2
sta $5EA5+2
sta $5F3B+2 ; exit on keypress
sta $5F46+2 ; exit at end of demo cycle
lda #$54
sta $086F ; disable sound
+DISABLE_ACCEL
jmp $810
title !byte x_e-x_b
x_b !text "X/FIREBUG/FIREBUG"
x_e
!if * > $3F0 {
!error "code is too large, ends at ", *
}