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Only need to load the buffer size once

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This commit is contained in:
Gwilym Inzani 2023-07-14 22:51:58 +01:00
parent d38fea7f7a
commit fc4632ca8a
1 changed files with 1 additions and 2 deletions
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3
agb/src/sound/mixer/mixer.s
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@ -12,6 +12,7 @@ agb_arm_func \fn_name
push {{r4-r8}} push {{r4-r8}}
ldr r7, [sp, #20] @ load the right channel modification amount into r7 ldr r7, [sp, #20] @ load the right channel modification amount into r7
ldr r8, [sp, #24] @ load the buffer size into r8
cmp r7, r3 @ check if left and right channel need the same modifications cmp r7, r3 @ check if left and right channel need the same modifications
beq 3f @ same modification beq 3f @ same modification
@ -20,7 +21,6 @@ agb_arm_func \fn_name
orr r7, r7, r3, lsl #16 @ r7 now is the left channel followed by the right channel modifications. orr r7, r7, r3, lsl #16 @ r7 now is the left channel followed by the right channel modifications.
mov r5, #0 @ current index we're reading from mov r5, #0 @ current index we're reading from
ldr r8, [sp, #24]
1: 1:
.rept 4 .rept 4
@ -62,7 +62,6 @@ agb_arm_func \fn_name
sub r3, r3, #1 sub r3, r3, #1
mov r5, #0 @ current index we're reading from mov r5, #0 @ current index we're reading from
ldr r8, [sp, #24] @ the number of steps we have left
1: 1:
.rept 4 .rept 4