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Some more 6502 code
git-svn-id: svn://svn.cc65.org/cc65/trunk@485 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -14,8 +14,12 @@
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ldy #1
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ldy #1
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lda (sp),y ; get hi byte
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lda (sp),y ; get hi byte
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tax ; into x
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tax ; into x
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.ifpc02
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lda (sp) ; get lo byte
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.else
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dey
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dey
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lda (sp),y ; get lo byte
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lda (sp),y ; get lo byte
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.endif
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.endproc
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.endproc
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@ -15,14 +15,19 @@
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tossuba0:
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tossuba0:
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ldx #0
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ldx #0
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tossubax:
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tossubax:
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ldy #0
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sta ptr1
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sta ptr1
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stx ptr1+1
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stx ptr1+1
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lda (sp),y ; lo byte
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.ifpc02
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lda (sp),y ; Get lo byte
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ldy #1 ; Hi index
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.else
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ldy #0
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lda (sp),y ; Lo byte
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iny ; Hi index
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.endif
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sec
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sec
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sbc ptr1
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sbc ptr1
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sta ptr1 ; save lo byte
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sta ptr1 ; save lo byte
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iny
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lda (sp),y
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lda (sp),y
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sbc ptr1+1
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sbc ptr1+1
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tax
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tax
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