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Ingy döt Net 2025-02-27 18:35:13 -05:00
parent 8e4e15fa56
commit 72eb4943cb
1853 changed files with 35514 additions and 9441 deletions
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17
Task/Gotchas/X86-Assembly/gotchas.x86
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@ -1,4 +1,15 @@
; this takes two bytes, it is slower on some processors but faster or the same on others
label:
;loop body goes here
DEC ECX
JNZ label
loop label
; this takes three bytes but is slower on some processors
label:
dec ecx
jnz label
; this is takes five bytes and is potentially faster than the above
label:
sub ecx,1
jnz label
; there is also a two-byte jecxz instruction but no jecxnz