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27 lines
551 B
ArmAsm
27 lines
551 B
ArmAsm
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; Ullrich von Bassewitz, 2003-12-19
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; READST kernal call
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.export READST
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.import sys_bank, restore_bank
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.import sysp0: zp, ktmp: zp
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.include "cbm510.inc"
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.proc READST
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jsr sys_bank
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sty ktmp ; Save Y register
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ldy #$9C ; STATUS
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lda (sysp0),y ; Load STATUS from system bank
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ldy ktmp
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jmp restore_bank ; Will set condition codes on A
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.endproc
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