ld [hl], FOO / inc|dec hl -> ld a, FOO / ld [hli|hld], a

1 files changed, 28 insertions, 0 deletions

diff --git a/Optimizing-assembly-code.md b/Optimizing-assembly-code.md
index 51c512d..893ade2 100644
--- a/Optimizing-assembly-code.md
+++ b/Optimizing-assembly-code.md
@@ -1163,6 +1163,34 @@ But do:
 	ld [hld], a ; 1 bytes, 2 cycles
 ```
 
+And if you can use `a`, then don't do:
+
+```asm
+	; 3 bytes, 5 cycles
+	ld [hl], FOO
+	inc hl
+```
+
+```asm
+	; 3 bytes, 5 cycles
+	ld [hl], FOO
+	dec hl
+```
+
+But do:
+
+```asm
+	; 3 bytes, 4 cycles
+	ld a, FOO
+	ld [hli], a
+```
+
+```asm
+	; 3 bytes, 4 cycles
+	ld a, FOO
+	ld [hld], a
+```
+
 
 ## Branching (control flow)