RaySollium99/picodrive
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platform gp2x, fix compilation with original toolchain (gcc 4.1)

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This commit is contained in:
kub 2023-04-30 22:11:07 +00:00
parent 97232a47c9
commit 110a49ed2a
10 changed files with 59 additions and 53 deletions
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16
pico/sound/ym2612_arm.S
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@ -168,7 +168,7 @@
1: @ EG_REL
cmp r0, #0x200 @ if ( volume >= 0x200 )
movge r0, #1024
subge r0, #1
subge r0, r0, #1
movge r3, #EG_OFF
strgeb r3, [r5,#0x17] @ state
@ -180,8 +180,8 @@
cmpge r3, #EG_REL+1
ldrh r3, [r5,#0x18] @ tl
rsbge r0, r0, #0x200 @ volume = (0x200-volume) & MAX_ATT
lslge r0, r0, #22
lsrge r0, r0, #22
movge r0, r0, lsl #22
movge r0, r0, lsr #22
11:
#endif
@ -207,7 +207,7 @@
beq 1f
tst r0, #0x02
eorne r0, r0, lsr #8 @ ssg ^= ssgn ^ 4
eorne r0, r0, r0, lsr #8 @ ssg ^= ssgn ^ 4
eorne r0, r0, #0x4
orrne r0, r0, #0x400 @ ssgn = 4
strneh r0, [r5,#0x30]
@ -258,8 +258,8 @@
cmpge r3, #EG_REL+1
ldrh r3, [r5,#0x18] @ tl
rsbge r0, r0, #0x200 @ volume = (0x200-volume) & MAX_ATT
lslge r0, r0, #22
lsrge r0, r0, #22
movge r0, r0, lsl #22
movge r0, r0, lsr #22
add r0, r0, r3 @ volume += tl
strh r0, [r5,#0x34] @ vol_out
@ -857,10 +857,10 @@ crl_smp_loop_end:
tst r0, r0
beq ctl_sample_skip
orr r4, r4, #8 @ have_output
lsr r1, r0, #31 @ clip (saturate) sample to 14 bit
mov r1, r0, lsr #31 @ clip (saturate) sample to 14 bit
cmn r1, r0, asr #13
subne r0, r1, #0x80000001
asrne r0, r0, #18
movne r0, r0, asr #18
tst r4, r1, lsl #7 @ (sample < 0) && dac?
bicne r0, r0, #0x1f
subne r0, r0, #7<<5