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mcd, increase audio volume slightly

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This commit is contained in:
kub 2024-02-23 19:22:34 +01:00
parent 4aaedc899e
commit 2eeee072ea
2 changed files with 51 additions and 18 deletions
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51
pico/sound/mix_arm.S
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@ -31,12 +31,16 @@ m16_32_loop:
ldmia r0, {r3-r6}
ldmia r1!,{r12,lr}
subs r2, r2, #4
add r4, r4, r12,asr #17 @ we use half volume
add r4, r4, r12,asr #17 @ we use 5/8 volume
add r4, r4, r12,asr #19
mov r12,r12,lsl #16
add r3, r3, r12,asr #17
add r3, r3, r12,asr #19
add r6, r6, lr, asr #17
add r6, r6, lr, asr #19
mov lr, lr, lsl #16
add r5, r5, lr, asr #17
add r5, r5, lr, asr #19
stmia r0!,{r3-r6}
bpl m16_32_loop
@ -47,7 +51,9 @@ m16_32_end:
ldmia r0, {r3,r4}
mov r12,r5, lsl #16
add r3, r3, r12,asr #17
add r3, r3, r12,asr #19
add r4, r4, r5, asr #17
add r4, r4, r5, asr #19
stmia r0!,{r3,r4}
m16_32_no_unal2:
@ -56,6 +62,7 @@ m16_32_no_unal2:
ldrsh r4, [r1], #2
ldr r3, [r0]
add r3, r3, r4, asr #1
add r3, r3, r4, asr #3
str r3, [r0], #4
ldmfd sp!, {r4-r6,lr}
@ -76,12 +83,16 @@ m16_32_s1_loop:
ldr r12,[r1], #8
ldr lr, [r1], #8
subs r2, r2, #4
add r4, r4, r12,asr #17
add r4, r4, r12,asr #17 @ we use 5/8 volume
add r4, r4, r12,asr #19
mov r12,r12,lsl #16
add r3, r3, r12,asr #17 @ we use half volume
add r3, r3, r12,asr #17
add r3, r3, r12,asr #19
add r6, r6, lr, asr #17
add r6, r6, lr, asr #19
mov lr, lr, lsl #16
add r5, r5, lr, asr #17
add r5, r5, lr, asr #19
stmia r0!,{r3-r6}
bpl m16_32_s1_loop
@ -92,7 +103,9 @@ m16_32_s1_end:
ldmia r0, {r3,r4}
mov r12,r5, lsl #16
add r3, r3, r12,asr #17
add r3, r3, r12,asr #19
add r4, r4, r5, asr #17
add r4, r4, r5, asr #19
stmia r0!,{r3,r4}
m16_32_s1_no_unal2:
@ -101,6 +114,7 @@ m16_32_s1_no_unal2:
ldrsh r4, [r1], #2
ldr r3, [r0]
add r3, r3, r4, asr #1
add r3, r3, r4, asr #3
str r3, [r0], #4
ldmfd sp!, {r4-r6,lr}
@ -121,12 +135,16 @@ m16_32_s2_loop:
ldr r12,[r1], #16
ldr lr, [r1], #16
subs r2, r2, #4
add r4, r4, r12,asr #17
add r4, r4, r12,asr #17 @ we use 5/8 volume
add r4, r4, r12,asr #19
mov r12,r12,lsl #16
add r3, r3, r12,asr #17 @ we use half volume
add r3, r3, r12,asr #17
add r3, r3, r12,asr #19
add r6, r6, lr, asr #17
add r6, r6, lr, asr #19
mov lr, lr, lsl #16
add r5, r5, lr, asr #17
add r5, r5, lr, asr #19
stmia r0!,{r3-r6}
bpl m16_32_s2_loop
@ -137,7 +155,9 @@ m16_32_s2_end:
ldmia r0, {r3,r4}
mov r12,r5, lsl #16
add r3, r3, r12,asr #17
add r3, r3, r12,asr #19
add r4, r4, r5, asr #17
add r4, r4, r5, asr #19
stmia r0!,{r3,r4}
m16_32_s2_no_unal2:
@ -146,6 +166,7 @@ m16_32_s2_no_unal2:
ldrsh r4, [r1], #2
ldr r3, [r0]
add r3, r3, r4, asr #1
add r3, r3, r4, asr #3
str r3, [r0], #4
ldmfd sp!, {r4-r6,lr}
@ -171,12 +192,16 @@ m16_32_rss_loop:
ldr lr ,[r1, r9, lsl #2]
add r4, r4, r3
subs r2, r2, #2
add r6, r6, r12,asr #17
add r6, r6, r12,asr #17 @ we use 5/8 volume
add r6, r6, r12,asr #19
mov r12,r12,lsl #16
add r5, r5, r12,asr #17 @ we use half volume
add r5, r5, r12,asr #17
add r5, r5, r12,asr #19
add r8, r8, lr, asr #17
add r8, r8, lr, asr #19
mov lr, lr, lsl #16
add r7, r7, lr, asr #17
add r7, r7, lr, asr #19
stmia r0!,{r5-r8}
bpl m16_32_rss_loop
@ -188,7 +213,9 @@ m16_32_rss_end:
ldmia r0, {r5,r6}
mov r12,lr, lsl #16
add r5, r5, r12,asr #17
add r5, r5, r12,asr #19
add r6, r6, lr, asr #17
add r6, r6, lr, asr #19
stmia r0!,{r5,r6}
ldmfd sp!, {r4-r9,lr}
@ -214,12 +241,16 @@ m16_32_rsm_loop:
ldr lr ,[r1, r9, lsl #2]
add r4, r4, r3
subs r2, r2, #2
add r5, r5, r12,asr #18
add r5, r5, r12,asr #18 @ we use 5/8 volume (= 5/16 vol per channel)
add r5, r5, r12,asr #20
mov r12,r12,lsl #16
add r5, r5, r12,asr #18 @ we use half volume (= quarter vol per channel)
add r5, r5, r12,asr #18
add r5, r5, r12,asr #20
add r6, r6, lr, asr #18
add r6, r6, lr, asr #20
mov lr, lr, lsl #16
add r6, r6, lr, asr #18
add r6, r6, lr, asr #20
stmia r0!,{r5-r6}
bpl m16_32_rsm_loop
@ -231,7 +262,9 @@ m16_32_rsm_end:
ldr r5, [r0]
mov r12,lr, lsl #16
add r5, r5, r12,asr #18
add r5, r5, r12,asr #20
add r5, r5, lr, asr #18
add r5, r5, lr, asr #20
str r5, [r0]
ldmfd sp!, {r4-r6,r9,lr}