|
Packit |
c32a2d |
/*
|
|
Packit |
c32a2d |
synth_arm: ARM optimized synth
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
copyright 1995-2009 by the mpg123 project - free software under the terms of the LGPL 2.1
|
|
Packit |
c32a2d |
see COPYING and AUTHORS files in distribution or http://mpg123.org
|
|
Packit |
c32a2d |
initially written by Taihei Monma
|
|
Packit |
c32a2d |
*/
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
#include "mangle.h"
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
#define WINDOW r0
|
|
Packit |
c32a2d |
#define B0 r1
|
|
Packit |
c32a2d |
#define SAMPLES r2
|
|
Packit |
c32a2d |
#define REG_CLIP r4
|
|
Packit |
c32a2d |
#define REG_MAX r12
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
/*
|
|
Packit |
c32a2d |
int synth_1to1_arm_asm(real *window, real *b0, short *samples, int bo1);
|
|
Packit |
c32a2d |
return value: number of clipped samples
|
|
Packit |
c32a2d |
*/
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
.code 32
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
.text
|
|
Packit |
c32a2d |
ALIGN4
|
|
Packit |
c32a2d |
.globl ASM_NAME(synth_1to1_arm_asm)
|
|
Packit |
c32a2d |
#ifdef __ELF__
|
|
Packit |
c32a2d |
.type ASM_NAME(synth_1to1_arm_asm), %function
|
|
Packit |
c32a2d |
#endif
|
|
Packit |
c32a2d |
ASM_NAME(synth_1to1_arm_asm):
|
|
Packit |
c32a2d |
stmfd sp!, {r4, r5, r6, r7, r8, r9, r10, lr}
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
add WINDOW, WINDOW, #64
|
|
Packit |
c32a2d |
sub WINDOW, WINDOW, r3, lsl #2
|
|
Packit |
c32a2d |
eor REG_CLIP, REG_CLIP, REG_CLIP
|
|
Packit |
c32a2d |
mov REG_MAX, #1073741824
|
|
Packit |
c32a2d |
sub REG_MAX, REG_MAX, #32768
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
mov r3, #16
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
1:
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mul r7, r5, r6
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mul r10, r8, r9
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #68
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
sub r7, r7, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
cmp r7, REG_MAX
|
|
Packit |
c32a2d |
movgt r7, REG_MAX
|
|
Packit |
c32a2d |
addgt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
cmp r7, #-1073741824
|
|
Packit |
c32a2d |
movlt r7, #-1073741824
|
|
Packit |
c32a2d |
addlt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
movs r7, r7, asr #15
|
|
Packit |
c32a2d |
adc r7, r7, #0
|
|
Packit |
c32a2d |
strh r7, [SAMPLES], #4
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
subs r3, r3, #1
|
|
Packit |
c32a2d |
bne 1b
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
add WINDOW, WINDOW, #4
|
|
Packit |
c32a2d |
add B0, B0, #4
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #8
|
|
Packit |
c32a2d |
ldr r9, [B0], #8
|
|
Packit |
c32a2d |
mul r7, r5, r6
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #8
|
|
Packit |
c32a2d |
ldr r6, [B0], #8
|
|
Packit |
c32a2d |
mul r10, r8, r9
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #8
|
|
Packit |
c32a2d |
ldr r9, [B0], #8
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #8
|
|
Packit |
c32a2d |
ldr r6, [B0], #8
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #8
|
|
Packit |
c32a2d |
ldr r9, [B0], #8
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #8
|
|
Packit |
c32a2d |
ldr r6, [B0], #8
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #72
|
|
Packit |
c32a2d |
ldr r9, [B0], #-120
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
add r7, r7, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
cmp r7, REG_MAX
|
|
Packit |
c32a2d |
movgt r7, REG_MAX
|
|
Packit |
c32a2d |
addgt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
cmp r7, #-1073741824
|
|
Packit |
c32a2d |
movlt r7, #-1073741824
|
|
Packit |
c32a2d |
addlt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
movs r7, r7, asr #15
|
|
Packit |
c32a2d |
adc r7, r7, #0
|
|
Packit |
c32a2d |
strh r7, [SAMPLES], #4
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
mov r3, #14
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
1:
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mul r7, r5, r6
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mul r10, r8, r9
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #68
|
|
Packit |
c32a2d |
ldr r9, [B0], #-124
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
add r7, r7, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
cmp r7, REG_MAX
|
|
Packit |
c32a2d |
movgt r7, REG_MAX
|
|
Packit |
c32a2d |
addgt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
cmp r7, #-1073741824
|
|
Packit |
c32a2d |
movlt r7, #-1073741824
|
|
Packit |
c32a2d |
addlt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
movs r7, r7, asr #15
|
|
Packit |
c32a2d |
adc r7, r7, #0
|
|
Packit |
c32a2d |
strh r7, [SAMPLES], #4
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
subs r3, r3, #1
|
|
Packit |
c32a2d |
bne 1b
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mul r7, r5, r6
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mul r10, r8, r9
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r9, [B0], #4
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
ldr r5, [WINDOW], #4
|
|
Packit |
c32a2d |
ldr r6, [B0], #4
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
ldr r8, [WINDOW]
|
|
Packit |
c32a2d |
ldr r9, [B0]
|
|
Packit |
c32a2d |
mla r7, r5, r6, r7
|
|
Packit |
c32a2d |
mla r10, r8, r9, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
add r7, r7, r10
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
cmp r7, REG_MAX
|
|
Packit |
c32a2d |
movgt r7, REG_MAX
|
|
Packit |
c32a2d |
addgt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
cmp r7, #-1073741824
|
|
Packit |
c32a2d |
movlt r7, #-1073741824
|
|
Packit |
c32a2d |
addlt REG_CLIP, REG_CLIP, #1
|
|
Packit |
c32a2d |
movs r7, r7, asr #15
|
|
Packit |
c32a2d |
adc r7, r7, #0
|
|
Packit |
c32a2d |
strh r7, [SAMPLES]
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
mov r0, REG_CLIP
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
ldmfd sp!, {r4, r5, r6, r7, r8, r9, r10, pc}
|
|
Packit |
c32a2d |
|
|
Packit |
c32a2d |
NONEXEC_STACK
|