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Squeeze two cycles out of the abs() function

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git-svn-id: svn://svn.cc65.org/cc65/trunk@2508 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2003-10-10 17:59:00 +00:00
parent 23c35f27f8
commit 3f06947b36
1 changed files with 1 additions and 2 deletions
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3
libsrc/common/abs.s
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@@ -7,8 +7,7 @@
.export _abs .export _abs
.import negax .import negax
_abs: dex _abs: cpx #$00 ; test hi byte
inx ; test hi byte
bpl L1 bpl L1
jmp negax ; Negate if negative jmp negax ; Negate if negative
L1: rts L1: rts