;license:MIT ;(c) 2021 by Frank M. !cpu 6502 !to "res/DEMO/STARGATE",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 #$60 sta $4697 jsr $800 ; decompress lda #$60 sta $9A03 jsr $9A00 ; decompress2 lda #$10 sta $0933 lda #$1E sta $0933+1 lda #$4C sta $0933+2 sta $0905 sta $51C7 sta $51D2 lda #0 sta $0933+3 sta $0905+1 sta $51C7+1 sta $51D2+1 sta $47F2 ; fix reset (moved to $3F2/$3F3/$3F4) sta $47FE ; fix IRQ (moved to $3FE/$3FF) lda #1 sta $0933+4 sta $0905+2 sta $51C7+2 sta $51D2+2 ; set exits sta $47F2+1 sta $47FE+1 lda #$A4 sta $47F2+2 ; fix reset checksum lda #$D0 sta $153B sta $5F0E sta $50B8 sta $1DF7 sta $1151 sta $16E0 sta $166B sta $167A ; disable sound +DISABLE_ACCEL jmp $5000 title !byte x_e-x_b x_b !text "X/STARGATE/STARGATE" x_e !if * > $3F0 { !error "code is too large, ends at ", * }