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| author | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-03-26 22:09:52 -0400 |
|---|---|---|
| committer | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-03-26 22:09:52 -0400 |
| commit | ba41eaaa02e21a63f0f73fa745ce1190baefaed2 (patch) | |
| tree | eb3c4825884edc6d50a443f5fe1d7860bf9e1418 /Optimizing-assembly-code.md | |
| parent | 0876f85eedff5f24d5e8a01ebac7cb523fe79c29 (diff) | |
add a, 0
Diffstat (limited to 'Optimizing-assembly-code.md')
| -rw-r--r-- | Optimizing-assembly-code.md | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/Optimizing-assembly-code.md b/Optimizing-assembly-code.md index 8a90e9e..2f9ab4c 100644 --- a/Optimizing-assembly-code.md +++ b/Optimizing-assembly-code.md @@ -247,6 +247,15 @@ Don't do: adc 0 ``` +And don't do: + +```asm + ; 4 bytes, 4 cycles + ld b, a + ld a, 0 + adc c +``` + But do: ```asm @@ -256,7 +265,7 @@ But do: sub b ``` -And don't do: +Also, don't do: ```asm ; 5 bytes, 5 cycles @@ -265,6 +274,15 @@ And don't do: adc 0 ``` +And don't do: + +```asm + ; 5 bytes, 5 cycles + ld b, a + ld a, 0 + adc N +``` + But do: ```asm |