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Don't need lr to be saved since we're not using it

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This commit is contained in:
Gwilym Inzani 2023-07-25 00:27:20 +01:00
parent 49b9a07a87
commit f7b3aa8ecb
1 changed files with 6 additions and 8 deletions
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14
agb/src/sound/mixer/mixer.s
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@ -11,12 +11,12 @@ agb_arm_func \fn_name
@ Stack position 4 - the amount to multiply by
@
@ Returns the new channel position
push {{r4-r11,lr}}
push {{r4-r11}}
ldr r4, [sp, #(9*4)] @ load the channel length into r4
ldr r5, [sp, #(10*4)] @ load the current channel position into r5
ldr r6, [sp, #(11*4)] @ load the playback speed into r6
ldr r12, [sp, #(12*4)] @ load the amount to multiply by into r12
ldr r4, [sp, #(8*4)] @ load the channel length into r4
ldr r5, [sp, #(9*4)] @ load the current channel position into r5
ldr r6, [sp, #(10*4)] @ load the playback speed into r6
ldr r12, [sp, #(11*4)] @ load the amount to multiply by into r12
@ The core loop
1:
@ -57,7 +57,6 @@ agb_arm_func \fn_name
sub r2, r2, r7
beq 5f
4:
mov r8, #0
4:
stmia r1!, {{r8}}
@ -76,9 +75,8 @@ agb_arm_func \fn_name
3:
.endif
mov r0, r5 @ return the playback position
pop {{r4-r11,lr}}
pop {{r4-r11}}
bx lr
agb_arm_end \fn_name