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46 lines
635 B
NASM
46 lines
635 B
NASM
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;;; Helper routines for printing out sequences of test code.
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;;; Copyright © 2017 Zellyn Hunter <zellyn@gmail.com>
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!zone printtest {
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.checkdata = tmp1
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PRINTTEST
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-
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ldy #0
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lda (PCL),y
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cmp #$20
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beq +++
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lda #'-'
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jsr COUT
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lda #' '
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jsr COUT
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ldx #0
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lda (PCL,x)
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jsr $f88e
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ldx #3
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jsr $f8ea
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jsr $f953
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sta PCL
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sty PCH
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lda #$8D
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jsr COUT
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jmp -
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+++ rts
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;;; Increment .checkdata pointer to the next memory location, and load
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;;; it into the accumulator. X and Y are preserved.
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NEXTCHECK
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inc .checkdata
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bne CURCHECK
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inc .checkdata+1
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CURCHECK
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sty SCRATCH
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ldy #0
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lda (.checkdata),y
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ldy SCRATCH
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ora #0
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rts
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} ;printtest
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