18 lines
342 B
Text
18 lines
342 B
Text
LDA #arg_C ;load whatever this value is into accumulator
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PHA
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LDA #arg_B
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PHA
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LDA #arg_A
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PHA
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foo:
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PHX
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TSX
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;stack looks like this: __, X,LOW(PC),HIGH(PC),arg_A,arg_B,arg_C
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;stack pointer points to __, as does $100,X after a TSX
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LDA $0106,X ;LDA #arg_C
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CLC
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ADC $0105,X
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CLC
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ADC $0104,X ;ADC #arg_A
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;we have the desired value in A, now return.
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PLX
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