diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/asm/ARMV5E/Norm_Corr_opt.s')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/asm/ARMV5E/Norm_Corr_opt.s | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/asm/ARMV5E/Norm_Corr_opt.s b/media/libstagefright/codecs/amrwbenc/src/asm/ARMV5E/Norm_Corr_opt.s index b440a31..49bdc2b 100644 --- a/media/libstagefright/codecs/amrwbenc/src/asm/ARMV5E/Norm_Corr_opt.s +++ b/media/libstagefright/codecs/amrwbenc/src/asm/ARMV5E/Norm_Corr_opt.s @@ -32,8 +32,8 @@ @ r6 --- corr_norm[] - .section .text - .global Norm_corr_asm + .section .text + .global Norm_corr_asm .extern Convolve_asm .extern Isqrt_n @****************************** @@ -47,17 +47,17 @@ .equ T_MIN , 212 .equ T_MAX , 216 .equ CORR_NORM , 220 - + Norm_corr_asm: - STMFD r13!, {r4 - r12, r14} + STMFD r13!, {r4 - r12, r14} SUB r13, r13, #voSTACK - + ADD r8, r13, #20 @get the excf[L_SUBFR] LDR r4, [r13, #T_MIN] @get t_min RSB r11, r4, #0 @k = -t_min - ADD r5, r0, r11, LSL #1 @get the &exc[k] - + ADD r5, r0, r11, LSL #1 @get the &exc[k] + @transfer Convolve function STMFD sp!, {r0 - r3} MOV r0, r5 @@ -68,7 +68,7 @@ Norm_corr_asm: @ r8 --- excf[] - MOV r14, r1 @copy xn[] address + MOV r14, r1 @copy xn[] address MOV r5, #64 MOV r6, #0 @L_tmp = 0 MOV r7, #1 @@ -93,21 +93,21 @@ LOOP1: CLZ r7, r9 SUB r6, r7, #1 @exp = norm_l(L_tmp) RSB r7, r6, #32 @exp = 32 - exp - MOV r6, r7, ASR #1 + MOV r6, r7, ASR #1 RSB r7, r6, #0 @scale = -(exp >> 1) - + @loop for every possible period @for(t = t_min@ t <= t_max@ t++) @r7 --- scale r4 --- t_min r8 --- excf[] -LOOPFOR: +LOOPFOR: MOV r5, #0 @L_tmp = 0 MOV r6, #0 @L_tmp1 = 0 - MOV r9, #64 + MOV r9, #64 MOV r12, r1 @copy of xn[] ADD r14, r13, #20 @copy of excf[] MOV r8, #0x8000 - + LOOPi: LDR r11, [r14], #4 @load excf[i], excf[i+1] LDR r10, [r12], #4 @load xn[i], xn[i+1] @@ -128,13 +128,13 @@ LOOPi: MOV r10, #1 ADD r5, r10, r5, LSL #1 @L_tmp = (L_tmp << 1) + 1 ADD r6, r10, r6, LSL #1 @L_tmp1 = (L_tmp1 << 1) + 1 - - CLZ r10, r5 + + CLZ r10, r5 CMP r5, #0 RSBLT r11, r5, #0 CLZLT r10, r11 SUB r10, r10, #1 @exp = norm_l(L_tmp) - + MOV r5, r5, LSL r10 @L_tmp = (L_tmp << exp) RSB r10, r10, #30 @exp_corr = 30 - exp MOV r11, r5, ASR #16 @corr = extract_h(L_tmp) @@ -150,7 +150,7 @@ LOOPi: @Isqrt_n(&L_tmp, &exp_norm) MOV r14, r0 - MOV r12, r1 + MOV r12, r1 STMFD sp!, {r0 - r4, r7 - r12, r14} ADD r1, sp, #4 @@ -168,7 +168,7 @@ LOOPi: MOV r6, r6, ASR #16 @norm = extract_h(L_tmp) MUL r12, r6, r11 ADD r12, r12, r12 @L_tmp = vo_L_mult(corr, norm) - + ADD r6, r10, r5 ADD r6, r6, r7 @exp_corr + exp_norm + scale @@ -187,9 +187,9 @@ LOOPi: CMP r4, r6 BEQ Norm_corr_asm_end - + ADD r4, r4, #1 @ t_min ++ - + RSB r5, r4, #0 @ k MOV r6, #63 @ i = 63 @@ -216,16 +216,16 @@ LOOPK: MUL r14, r11, r8 LDR r6, [r13, #T_MAX] @ get t_max MOV r8, r14, ASR #15 - STRH r8, [r10] + STRH r8, [r10] CMP r4, r6 BLE LOOPFOR -Norm_corr_asm_end: - - ADD r13, r13, #voSTACK +Norm_corr_asm_end: + + ADD r13, r13, #voSTACK LDMFD r13!, {r4 - r12, r15} - + .END |