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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...
16 lines
277 B
Plaintext
16 lines
277 B
Plaintext
CODE PICK
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HL POPqq,
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( x2 )
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L SLAr, H RLr,
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SP ADDHLss,
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C (HL) LDrr,
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HL INCss,
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B (HL) LDrr,
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( check PS range before returning )
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EXDEHL,
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HL PS_ADDR LDddnn,
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DE SUBHLss,
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CC L2 @ JPccnn, ( abortUnderflow-B298 )
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BC PUSHqq,
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;CODE
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