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49 lines
928 B
NASM
49 lines
928 B
NASM
// Multiple calls with different (constant?) parameters should yield different values at runtime
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// Currently the same constant parameter is passed on every call.
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// Reason: Multiple versioned parameter constants x0#0, x0#1 are only output as a single constant in the ASM .const x0 = 0
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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 = 3
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main: {
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// line(1,2)
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lda #<$400
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sta.z screen
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lda #>$400
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sta.z screen+1
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lda #2
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sta.z line.x1
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ldx #1
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jsr line
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// line(3,5)
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lda #5
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sta.z line.x1
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ldx #3
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jsr line
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// }
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rts
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}
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// line(byte zp(2) x1)
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line: {
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.label x1 = 2
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__b1:
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// for(byte x = x0; x<x1; x++)
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cpx.z x1
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bcc __b2
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// }
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rts
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__b2:
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// *screen = x
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txa
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ldy #0
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sta (screen),y
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// screen++;
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inc.z screen
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bne !+
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inc.z screen+1
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!:
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// for(byte x = x0; x<x1; x++)
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inx
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jmp __b1
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}
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