@ ------------------------------------------------------------------ @ Copyright (C) 1998-2009 PacketVideo @ @ Licensed under the Apache License, Version 2.0 (the "License"); @ you may not use this file except in compliance with the License. @ You may obtain a copy of the License at @ @ http://www.apache.org/licenses/LICENSE-2.0 @ @ Unless required by applicable law or agreed to in writing, software @ distributed under the License is distributed on an "AS IS" BASIS, @ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either @ express or implied. @ See the License for the specific language governing permissions @ and limitations under the License. @ ------------------------------------------------------------------- @ @ @ Filename: pvmp3_dct_16_gcc.s @ @ @------------------------------------------------------------------------------ @ REVISION HISTORY @ @ @ Who: Date: MM/DD/YYYY @ Description: @ @------------------------------------------------------------------------------ .arm .align 4 .text .extern pvmp3_dct_16 .extern pvmp3_merge_in_place_N32 .extern pvmp3_split @------------------------------------------------------------------------------ .global pvmp3_dct_16 pvmp3_dct_16: stmfd sp!,{r0,r1,r4-r11,lr} ldr r1,[r0] ldr r3,[r0,#0x3c] ldr r12,constant1 sub r2,r1,r3 smull lr,r2,r12,r2 sub sp,sp,#0x1c str r2,[sp,#0x14] ldr r2,[r0,#0x1c] ldr r12,[r0,#0x20] add r1,r1,r3 sub r3,r2,r12 ldr lr,constant2 mov r3,r3,lsl #3 smull r4,r3,lr,r3 ldr r6,constant5 str r3,[sp] add r3,r2,r12 sub r2,r1,r3 ldr r12,constant3 add r3,r1,r3 smull lr,r2,r12,r2 ldr r12,[r0,#0x38] ldr r1,[r0,#4] ldr lr,constant4 sub r4,r1,r12 add r1,r1,r12 ldr r12,[r0,#0x18] smull r4,r5,lr,r4 ldr lr,[r0,#0x24] ldr r10,constant10 sub r4,r12,lr mov r4,r4,lsl #1 smull r7,r4,r6,r4 add r12,r12,lr add r7,r1,r12 sub r12,r1,r12 ldr r1,constant6 str r4,[sp,#4] smull r12,r4,r1,r12 ldr r1,[r0,#8] ldr r12,[r0,#0x34] ldr r6,constant7 sub lr,r1,r12 smull r8,lr,r6,lr add r1,r1,r12 str lr,[sp,#0x10] ldr r12,[r0,#0x14] ldr lr,[r0,#0x28] ldr r8,constant8 sub r6,r12,lr mov r6,r6,lsl #1 smull r9,r6,r8,r6 add r12,r12,lr ldr r9,constant9 add r8,r1,r12 sub r12,r1,r12 smull r12,lr,r9,r12 ldr r12,[r0,#0x30] ldr r1,[r0,#0xc] sub r9,r1,r12 smull r11,r9,r10,r9 add r12,r1,r12 str r9,[sp,#0xc] ldr r9,[r0,#0x10] ldr r10,constant11 str r9,[sp,#0x18] ldr r1,[r0,#0x2c] sub r9,r9,r1 smull r11,r9,r10,r9 ldr r10,constant12 str r9,[sp,#8] ldr r9,[sp,#0x18] ldr r11,constant14 add r9,r9,r1 add r1,r12,r9 sub r12,r12,r9 mov r12,r12,lsl #2 smull r9,r12,r10,r12 ldr r10,constant13 add r9,r3,r1 sub r1,r3,r1 smull r1,r3,r10,r1 sub r1,r7,r8 mov r1,r1,lsl #1 smull r1,r10,r11,r1 add r1,r7,r8 add r8,r9,r1 sub r7,r9,r1 mov r8,r8,asr #1 ldr r1,constant15 str r8,[r0] smull r7,r8,r1,r7 sub r7,r3,r10 str r8,[r0,#0x20] mov r7,r7,lsl #1 smull r8,r7,r1,r7 add r3,r3,r10 add r3,r3,r7 str r3,[r0,#0x10] sub r3,r2,r12 str r7,[r0,#0x30] add r2,r2,r12 ldr r7,constant13 sub r12,r4,lr mov r3,r3,lsl #1 smull r8,r3,r7,r3 add lr,r4,lr sub r4,r2,lr mov r12,r12,lsl #2 smull r7,r12,r11,r12 add lr,lr,r2 sub r2,r3,r12 mov r2,r2,lsl #1 smull r7,r2,r1,r2 mov r4,r4,lsl #1 add r12,r12,r2 add r3,r12,r3 smull r7,r4,r1,r4 add r12,r3,lr add r3,r3,r4 str r3,[r0,#0x18] add r3,r2,r4 str r2,[r0,#0x38] str r3,[r0,#0x28] str r12,[r0,#8] ldr r2,[sp,#0x14] ldr r3,[sp,#0] ldr lr,[sp,#4] sub r2,r2,r3 ldr r3,constant3 mov r2,r2,lsl #1 smull r12,r2,r3,r2 ldr r3,[sp,#0x14] ldr r12,[sp,#0] ldr r4,constant6 add r12,r3,r12 ldr r3,[sp,#4] sub lr,r5,lr mov lr,lr,lsl #1 add r3,r5,r3 smull r5,lr,r4,lr ldr r4,[sp,#0x10] ldr r5,[sp,#0x10] add r4,r4,r6 sub r5,r5,r6 ldr r6,constant9 mov r5,r5,lsl #1 smull r7,r5,r6,r5 ldr r6,[sp,#8] ldr r9,[sp,#0xc] ldr r10,constant12 sub r6,r9,r6 mov r6,r6,lsl #3 smull r7,r6,r10,r6 ldr r8,[sp,#0x20] ldr r7,[sp,#8] cmp r8,#0 add r7,r9,r7 bne no_flag_proc rsb r12,r12,#0 rsb r2,r2,#0 rsb r3,r3,#0 rsb lr,lr,#0 rsb r4,r4,#0 rsb r5,r5,#0 rsb r7,r7,#0 rsb r6,r6,#0 no_flag_proc: sub r8,r2,r6 add r2,r6,r2 sub r6,r12,r7 ldr r9,constant13 add r12,r12,r7 sub r7,r3,r4 mov r6,r6,lsl #1 mov r8,r8,lsl #1 smull r10,r8,r9,r8 add r3,r3,r4 smull r10,r6,r9,r6 sub r4,lr,r5 mov r7,r7,lsl #2 smull r9,r7,r11,r7 add lr,lr,r5 sub r5,r6,r7 add r6,r6,r7 sub r7,r12,r3 add r3,r12,r3 sub r12,r2,lr mov r4,r4,lsl #2 smull r9,r4,r11,r4 add lr,r2,lr sub r2,r8,r4 mov r2,r2,lsl #1 mov r5,r5,lsl #1 mov r12,r12,lsl #1 mov r7,r7,lsl #1 smull r9,r5,r1,r5 smull r9,r2,r1,r2 add r6,r6,r5 smull r9,r7,r1,r7 smull r9,r12,r1,r12 add r1,r4,r2 add r1,r1,r8 add lr,lr,r1 add r3,r3,lr str r3,[r0,#4] add r3,r6,lr str r3,[r0,#0xc] add r1,r1,r12 add r3,r6,r1 add r1,r7,r1 str r1,[r0,#0x1c] str r3,[r0,#0x14] add r1,r12,r2 add r3,r7,r1 add r1,r5,r1 str r1,[r0,#0x2c] str r3,[r0,#0x24]! add r1,r5,r2 str r1,[r0,#0x10] str r2,[r0,#0x18] add sp,sp,#0x24 ldmfd sp!,{r4-r11,pc} @------------------------------------------------------------------------------ .global pvmp3_merge_in_place_N32 pvmp3_merge_in_place_N32: stmfd sp!,{r4,lr} ldr r1,[r0,#0x1c] ldr r2,[r0,#0x38] str r1,[r0,#0x38] ldr r1,[r0,#0x18] ldr r3,[r0,#0x30] str r1,[r0,#0x30] ldr r12,[r0,#0x14] ldr r1,[r0,#0x28] str r12,[r0,#0x28] ldr r12,[r0,#0x10] ldr lr,[r0,#0x20] str r12,[r0,#0x20] ldr r12,[r0,#0xc] str r12,[r0,#0x18] ldr r12,[r0,#8] str r12,[r0,#0x10] ldr r12,[r0,#4] str r12,[r0,#8] ldr r4,[r0,#0x40] ldr r12,[r0,#0x44] add r4,r4,r12 str r4,[r0,#4] str lr,[r0,#0x40] ldr lr,[r0,#0x48] add r12,lr,r12 str r12,[r0,#0xc] ldr r12,[r0,#0x4c] add lr,r12,lr str lr,[r0,#0x14] ldr lr,[r0,#0x24] str lr,[r0,#0x48] ldr lr,[r0,#0x50] add r12,lr,r12 str r12,[r0,#0x1c] ldr r12,[r0,#0x54] str r1,[r0,#0x50] add lr,r12,lr str lr,[r0,#0x24] ldr r1,[r0,#0x58] ldr r4,[r0,#0x2c] ldr lr,[r0,#0x34] add r12,r1,r12 str r12,[r0,#0x2c] ldr r12,[r0,#0x5c] add r1,r12,r1 str r1,[r0,#0x34] str r4,[r0,#0x58] ldr r1,[r0,#0x60] ldr r4,[r0,#0x3c] add r12,r1,r12 str r12,[r0,#0x3c] ldr r12,[r0,#0x64] add r1,r12,r1 str r1,[r0,#0x44] ldr r1,[r0,#0x68] add r12,r1,r12 str r12,[r0,#0x4c] ldr r12,[r0,#0x6c] add r1,r12,r1 str r1,[r0,#0x54] ldr r1,[r0,#0x70] str r3,[r0,#0x60] add r12,r1,r12 str r12,[r0,#0x5c] ldr r3,[r0,#0x74] add r1,r3,r1 str r1,[r0,#0x64] str lr,[r0,#0x68] ldr r1,[r0,#0x78] str r2,[r0,#0x70] add r3,r1,r3 str r3,[r0,#0x6c] ldr r2,[r0,#0x7c] add r1,r1,r2 str r1,[r0,#0x74] str r4,[r0,#0x78] ldmfd sp!,{r4,pc} @------------------------------------------------------------------------------ .global pvmp3_split pvmp3_split: stmfd sp!,{r4,r5,lr} adr r1,constant16 ldr r2,[r1] add r2,r1 sub r1,r0,#4 mov r3,#3 loop1: ldr r12,[r0] ldr lr,[r1] ldr r4,[r2],#-4 add r5,lr,r12 sub r12,lr,r12 smull r12,lr,r4,r12 str r5,[r1],#-4 mov r12,r12,lsr #27 add r12,r12,lr,lsl #5 str r12,[r0],#4 ldr r12,[r0] ldr lr,[r1] ldr r4,[r2],#-4 add r5,lr,r12 sub r12,lr,r12 smull r12,lr,r4,r12 str r5,[r1],#-4 mov r12,r12,lsr #27 add r12,r12,lr,lsl #5 str r12,[r0],#4 subs r3,r3,#1 bne loop1 mov r3,#5 loop2: ldr r12,[r0] ldr lr,[r1] ldr r4,[r2],#-4 add r5,lr,r12 sub r12,lr,r12 mov r12,r12,lsl #1 smull lr,r12,r4,r12 str r5,[r1],#-4 str r12,[r0],#4 ldr r12,[r0] ldr lr,[r1] ldr r4,[r2],#-4 add r5,lr,r12 sub r12,lr,r12 mov r12,r12,lsl #1 smull lr,r12,r4,r12 str r5,[r1],#-4 str r12,[r0],#4 subs r3,r3,#1 bne loop2 ldmfd sp!,{r4,r5,pc} constant1: .word 0x404f4680 constant2: .word 0x519e4e00 constant3: .word 0x4140fb80 constant4: .word 0x42e13c00 constant5: .word 0x6e3c9300 constant6: .word 0x4cf8de80 constant7: .word 0x48919f80 constant8: .word 0x43e22480 constant9: .word 0x73326b80 constant10: .word 0x52cb0e80 constant11: .word 0x64e24000 constant12: .word 0x52036780 constant13: .word 0x4545ea00 constant14: .word 0x539eba80 constant15: .word 0x5a827980 constant16: .word (CosTable_dct32 + 60)-constant16 CosTable_dct32: .word 0x4013c280 .word 0x40b34580 .word 0x41fa2d80 .word 0x43f93400 .word 0x46cc1c00 .word 0x4a9d9d00 .word 0x4fae3700 .word 0x56601e80 .word 0x5f4cf700 .word 0x6b6fcf00 .word 0x07c7d1d8 .word 0x095b0350 .word 0x0bdf91b0 .word 0x107655e0 .word 0x1b42c840 .word 0x51852300