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d041b91846
Use EXX instead of the stack for HL protection and remove all spurious uses of chkPS, I wanted to inline chkPS in next because of its "tight loop" status, but for reasons I don't understand, doing so breaks Collapse OS. Later...
17 lines
383 B
Plaintext
17 lines
383 B
Plaintext
CODE >R ( 0xa8 )
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HL POPqq,
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17 BCALL, ( 17 == pushRS )
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;CODE NOP, NOP, NOP,
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CODE 2>R ( 0xb9 )
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DE POPqq, HL POPqq,
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17 BCALL, ( 17 == pushRS ) EXDEHL, 17 BCALL,
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;CODE NOP, NOP, NOP,
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CODE R> ( 0xce )
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20 BCALL, ( 20 == popRS )
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HL PUSHqq,
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;CODE
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CODE 2R> ( 0xdc )
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20 BCALL, ( 20 == popRS ) EXDEHL, 20 BCALL,
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HL PUSHqq, DE PUSHqq,
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;CODE ( END OF STABLE ABI )
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