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to emulate these functions on platforms where one or more of these functions are not available (PET, CBM-II). git-svn-id: svn://svn.cc65.org/cc65/trunk@1544 b7a2c559-68d2-44c3-8de9-860c34a00d81
17 lines
260 B
ArmAsm
17 lines
260 B
ArmAsm
;
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; Marc 'BlackJack' Rintsch, 20.03.2001
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;
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; unsigned char __fastcall__ cbm_k_chkin (unsigned char FN);
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;
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.export _cbm_k_chkin
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.import CHKIN
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_cbm_k_chkin:
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tax
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jsr CHKIN
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bcs @NotOk
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lda #0
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@NotOk: rts
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