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41 lines
530 B
Lua
41 lines
530 B
Lua
; utility debug code to print the SP (cpu stack pointer) register.
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%import textio
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test_stack {
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%option no_symbol_prefixing, ignore_unused
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asmsub test() {
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%asm {{
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lda #13
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jsr txt.chrout
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lda #'-'
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ldy #12
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- jsr txt.chrout
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dey
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bne -
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lda #13
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jsr txt.chrout
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lda #'s'
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jsr txt.chrout
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lda #'p'
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jsr txt.chrout
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lda #'='
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jsr txt.chrout
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tsx
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txa
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jsr txt.print_ub
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lda #13
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jsr txt.chrout
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lda #'-'
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ldy #12
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- jsr txt.chrout
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dey
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bne -
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lda #13
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jsr txt.chrout
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rts
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}}
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}
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}
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