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| author | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-11-29 16:15:48 -0500 |
|---|---|---|
| committer | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-11-29 16:15:48 -0500 |
| commit | 3779a73dea11f10b9ee9c5d826d7eb6a83389a64 (patch) | |
| tree | 7766a66fde4555c3a585b0cf2ecc6d21c0ebe07b | |
| parent | 36dfd67276d0a6519925af21734546be48edad2f (diff) | |
hl = a
| -rw-r--r-- | Optimizing-assembly-code.md | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Optimizing-assembly-code.md b/Optimizing-assembly-code.md index 9933b84..c411b16 100644 --- a/Optimizing-assembly-code.md +++ b/Optimizing-assembly-code.md @@ -871,6 +871,14 @@ And if the constant is 8-bit and nonzero (i.e. 0 < `FooBar` < 256), then do: ld h, a ``` +And if the constant is zero (i.e. `FooBar` == 0 and `a` + `FooBar` == `a`), then do: + +```asm + ; 3 bytes, 3 cycles + ld l, a + ld h, 0 +``` + ### Set a 16-bit register to `a` \* 16 |