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34 lines
596 B
NASM
34 lines
596 B
NASM
// Allocates ZP to j/k-variables even though all of i, j, k could be allocates to x and be more efficient.
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// Reason: Pass4RegisterUpliftCombinations.isAllocationOverlapping() believes i/j/k variables overlaps insode plot()
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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.label SCREEN = $400
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main: {
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ldx #0
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__b1:
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jsr plot
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inx
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cpx #$b
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bne __b1
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ldx #0
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__b2:
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jsr plot
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inx
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cpx #$b
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bne __b2
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ldx #0
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__b3:
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jsr plot
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inx
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cpx #$b
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bne __b3
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rts
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}
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// plot(byte register(X) x)
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plot: {
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lda #'*'
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sta SCREEN,x
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rts
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}
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