mirror of https://github.com/a2-4am/4cade.git
55 lines
1.0 KiB
Plaintext
55 lines
1.0 KiB
Plaintext
;license:MIT
|
|
;(c) 2021 by Frank M.
|
|
|
|
!cpu 6502
|
|
!to "res/DEMO/AGENT.U.S.A",plain
|
|
*=$300
|
|
|
|
!source "src/constants.a" ; no code in these
|
|
!source "src/macros.a"
|
|
|
|
+READ_RAM2_WRITE_RAM2
|
|
+LOAD_FILE_AT title, $00
|
|
+READ_ROM_NO_WRITE
|
|
|
|
lda #$60
|
|
sta $36D3
|
|
jsr $366D ; decompress
|
|
|
|
ldx #5
|
|
- lda $100,x
|
|
sta $300,x
|
|
dex
|
|
bpl -
|
|
sec
|
|
rol $3F3 ; point to $300 instead
|
|
jsr $FB6F
|
|
|
|
lda #$EA
|
|
sta $15DD
|
|
sta $15DD+1
|
|
sta $15DD+2 ; disable button press on main menu
|
|
|
|
lda #$4C
|
|
sta $0A06
|
|
sta $1605
|
|
lda #0
|
|
sta $0A06+1
|
|
sta $1605+1
|
|
lda #1
|
|
sta $0A06+2
|
|
sta $1605+2 ; set exits
|
|
|
|
lda #$D0
|
|
sta $AC64 ; disable sound
|
|
|
|
jmp $837
|
|
|
|
title !byte x_e-x_b
|
|
x_b !text "X/AGENT.U.S.A/AGENT.U.S.A"
|
|
x_e
|
|
|
|
!if * > $3F0 {
|
|
!error "code is too large, ends at ", *
|
|
}
|