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22 lines
508 B
ArmAsm
22 lines
508 B
ArmAsm
; isxdigit.s
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;
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; This file is part of
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; cc65 - a freeware C compiler for 6502 based systems
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;
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; https://cc65.github.io
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;
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; See "LICENSE" file for legal information.
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;
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; int isxdigit (int c);
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;
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.export _isxdigit
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.include "ctype.inc"
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.import ctypemask
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_isxdigit:
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jsr ctypemask ; (always clears X)
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bcs @L1 ; out of range? (everything already clear -> false)
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and #CT_XDIGIT ; mask xdigit bit
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@L1: rts
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