4cade/src/demo/sammy.lightfoot.a
2022-09-30 20:04:02 -04:00

64 lines
1.4 KiB
Plaintext

;license:MIT
;(c) 2021-2022 by Frank M., qkumba
!cpu 6502
!to "build/DEMO/SAMMY.LIGHTFOOT#06BA00",plain
*=$BA00
!source "src/constants.a" ; no code in these
!source "src/macros.a"
+READ_RAM2_WRITE_RAM2
jsr EnableAccelerator
+LOAD_FILE_KEEP_DIR sammy_lightfoot, sammy_lightfoot_dir_e-sammy_lightfoot_dir_b
lda #$60
sta $4094
lda #$FF
sta $4206
jsr $4000 ; decompress 1
jsr $B7B5 ; decompress 2
lda #$10
sta $68C5 ; clear keyboard strobe
lda #$04
sta $4FBE ; reduce number of sparkles
ldx #3-1
- lda patch1,x
sta $22B,x ; disable initial key detection
lda patch2,x
sta $B050,x
sta $7DB9,x
sta $B15A,x
sta $5035,x
sta $5184,x ; (moved to $7864)
dex
bpl -
lda #$D0
sta $6EE9 ; disable sound
lda #$AD
sta $209
sta $211
sta $21C
+DISABLE_ACCEL
jmp $B7A1
patch1 !byte $A9,$01,$EA
patch2 !byte $4C,$00,$01
sammy_lightfoot
!byte sammy_lightfoot_e-sammy_lightfoot_b
sammy_lightfoot_b
sammy_lightfoot_dir_b
!text "X/SAMMY.LIGHTFOOT"
sammy_lightfoot_dir_e
!text "/SAMMY.LIGHTFOOT"
sammy_lightfoot_e
!if * > $BB00 {
!error "code is too large, ends at ", *
}