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56 lines
960 B
Plaintext
56 lines
960 B
Plaintext
;license:MIT
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;(c) 2021 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/PEGASUS.II",plain
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*=$106
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!source "src/prelaunch/common.a"
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+ENABLE_ACCEL
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lda #$60
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sta $9E0
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jsr $800 ; load "DOS"
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lda #>callback
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sta $BD08
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lda #<callback
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sta $BD07
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+DISABLE_ACCEL
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jmp $B700
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callback
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pla
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pla
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jsr $BD3C
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jsr $BD09
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ldx #0
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ldy $B7ED
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lda $B7EC
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beq checksec
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cmp #$13
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bne nottrack
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cpy #$0B
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bne nottrack
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stx $9949
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inx
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stx $994A
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lda #$A4
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sta $994B
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clc
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rts
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checksec
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cpy #$0C
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bne nottrack
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stx $9E52
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inx
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stx $9E53
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nottrack
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clc
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rts
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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}
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