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Put everything in different sections

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This commit is contained in:
Gwilym Kuiper 2022-06-17 00:29:32 +01:00
parent 601360ca67
commit 2d90755090
3 changed files with 12 additions and 8 deletions
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4
agb/interrupt_handler.s
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@ -2,7 +2,7 @@
@ An interrupt handler that simply acknowledges all interrupts
.arm
.global InterruptHandler
.section .iwram, "ax"
.section .iwram, "ax", %progbits
.align
InterruptHandler:
mov r2, #0x04000000 @ interrupt enable register location
@ -50,7 +50,7 @@ InterruptHandler:
.pool
.section .iwram
.section .iwram.program_counter
.global agb_rs__program_counter
.balign 4
agb_rs__program_counter:

2
agb/src/asm_include.s
View file

@ -1,5 +1,5 @@
.macro agb_arm_func functionName:req
.section .iwram
.section .iwram.\functionName, "ax", %progbits
.arm
.align 2
.global \functionName

14
agb/src/sound/mixer/mixer.s
View file

@ -1,6 +1,6 @@
.include "src/asm_include.s"
.section .iwram
.section .iwram.buffer_size
.global agb_rs__buffer_size
.balign 4
agb_rs__buffer_size:
@ -26,7 +26,8 @@ modifications_fallback:
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
ldr r8, agb_rs__buffer_size @ the number of steps left
ldr r8, =agb_rs__buffer_size @ the number of steps left
ldr r8, [r8]
1:
@ -64,7 +65,8 @@ same_modification:
bne 1b
mov r5, #0 @ current index we're reading from
ldr r8, agb_rs__buffer_size @ the number of steps left
ldr r8, =agb_rs__buffer_size @ the number of steps left
ldr r8, [r8]
1:
.rept 4
@ -99,7 +101,8 @@ agb_arm_func agb_rs__mixer_add_stereo
ldr r5, =0x00000FFF
ldr r8, agb_rs__buffer_size
ldr r8, =agb_rs__buffer_size
ldr r8, [r8]
1:
.rept 4
ldrsh r6, [r0], #2 @ load the current sound sample to r6
@ -184,7 +187,8 @@ SWAP_SIGN .req r11
ldr CONST_127, =127
ldr SWAP_SIGN, =0x80808080
ldr r2, agb_rs__buffer_size @ loop counter
ldr r2, =agb_rs__buffer_size @ loop counter
ldr r2, [r2]
mov r4, r2
@ The idea for this solution came from pimpmobile: