diff options
Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/asm/ARMV5E/Radix4FFT_v5.s')
| -rw-r--r-- | media/libstagefright/codecs/aacenc/src/asm/ARMV5E/Radix4FFT_v5.s | 144 |
1 files changed, 72 insertions, 72 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/asm/ARMV5E/Radix4FFT_v5.s b/media/libstagefright/codecs/aacenc/src/asm/ARMV5E/Radix4FFT_v5.s index bc069b4..e81c82e 100644 --- a/media/libstagefright/codecs/aacenc/src/asm/ARMV5E/Radix4FFT_v5.s +++ b/media/libstagefright/codecs/aacenc/src/asm/ARMV5E/Radix4FFT_v5.s @@ -25,145 +25,145 @@ Radix4FFT: stmdb sp!, {r4 - r11, lr} - sub sp, sp, #32 + sub sp, sp, #32 mov r1, r1, asr #2 - cmp r1, #0 - beq Radix4FFT_END - -Radix4FFT_LOOP1: - mov r14, r0 @ xptr = buf@ + cmp r1, #0 + beq Radix4FFT_END + +Radix4FFT_LOOP1: + mov r14, r0 @ xptr = buf@ mov r10, r1 @ i = num@ mov r9, r2, lsl #3 @ step = 2*bgn@ - cmp r10, #0 - str r0, [sp] - str r1, [sp, #4] + cmp r10, #0 + str r0, [sp] + str r1, [sp, #4] str r2, [sp, #8] - str r3, [sp, #12] - beq Radix4FFT_LOOP1_END - -Radix4FFT_LOOP2: + str r3, [sp, #12] + beq Radix4FFT_LOOP1_END + +Radix4FFT_LOOP2: mov r12, r3 @ csptr = twidTab@ mov r11, r2 @ j = bgn - cmp r11, #0 + cmp r11, #0 str r10, [sp, #16] - beq Radix4FFT_LOOP2_END - -Radix4FFT_LOOP3: - str r11, [sp, #20] - + beq Radix4FFT_LOOP2_END + +Radix4FFT_LOOP3: + str r11, [sp, #20] + ldrd r0, [r14, #0] @ r0 = xptr[0]@ r1 = xptr[1]@ add r14, r14, r9 @ xptr += step@ - - ldrd r10, [r14, #0] @ r2 = xptr[0]@ r3 = xptr[1]@ + + ldrd r10, [r14, #0] @ r2 = xptr[0]@ r3 = xptr[1]@ ldr r8, [r12], #4 @ cosxsinx = csptr[0]@ - + smulwt r4, r10, r8 @ L_mpy_wx(cosx, t0) smulwt r3, r11, r8 @ L_mpy_wx(cosx, t1) - + smlawb r2, r11, r8, r4 @ r2 = L_mpy_wx(cosx, t0) + L_mpy_wx(sinx, t1)@ smulwb r5, r10, r8 @ L_mpy_wx(sinx, t0) - + mov r10, r0, asr #2 @ t0 = r0 >> 2@ mov r11, r1, asr #2 @ t1 = r1 >> 2@ - + sub r3, r3, r5 @ r3 = L_mpy_wx(cosx, t1) - L_mpy_wx(sinx, t0)@ add r14, r14, r9 @ xptr += step@ - + sub r0, r10, r2 @ r0 = t0 - r2@ sub r1, r11, r3 @ r1 = t1 - r3@ - + add r2, r10, r2 @ r2 = t0 + r2@ add r3, r11, r3 @ r3 = t1 + r3@ - + str r2, [sp, #24] str r3, [sp, #28] - + ldrd r10, [r14, #0] @ r4 = xptr[0]@ r5 = xptr[1]@ ldr r8, [r12], #4 @ cosxsinx = csptr[1]@ - + smulwt r6, r10, r8 @ L_mpy_wx(cosx, t0) smulwt r5, r11, r8 @ L_mpy_wx(cosx, t1) - + smlawb r4, r11, r8, r6 @ r4 = L_mpy_wx(cosx, t0) + L_mpy_wx(sinx, t1)@ smulwb r7, r10, r8 @ L_mpy_wx(sinx, t0) - + add r14, r14, r9 @ xptr += step@ sub r5, r5, r7 @ r5 = L_mpy_wx(cosx, t1) - L_mpy_wx(sinx, t0)@ - + ldrd r10, [r14] @ r6 = xptr[0]@ r7 = xptr[1]@ ldr r8, [r12], #4 @ cosxsinx = csptr[1]@ - + smulwt r2, r10, r8 @ L_mpy_wx(cosx, t0) smulwt r7, r11, r8 @ L_mpy_wx(cosx, t1) - + smlawb r6, r11, r8, r2 @ r4 = L_mpy_wx(cosx, t0) + L_mpy_wx(sinx, t1)@ smulwb r3, r10, r8 @ L_mpy_wx(sinx, t0) - + mov r10, r4 @ t0 = r4@ - mov r11, r5 @ t1 = r5@ - + mov r11, r5 @ t1 = r5@ + sub r7, r7, r3 @ r5 = L_mpy_wx(cosx, t1) - L_mpy_wx(sinx, t0)@ - - add r4, r10, r6 @ r4 = t0 + r6@ + + add r4, r10, r6 @ r4 = t0 + r6@ sub r5, r7, r11 @ r5 = r7 - t1@ - + sub r6, r10, r6 @ r6 = t0 - r6@ add r7, r7, r11 @ r7 = r7 + t1@ - + ldr r2, [sp, #24] ldr r3, [sp, #28] - + add r10, r0, r5 @ xptr[0] = r0 + r5@ add r11, r1, r6 @ xptr[0] = r1 + r6 - - strd r10, [r14] + + strd r10, [r14] sub r14, r14, r9 @ xptr -= step@ - + sub r10, r2, r4 @ xptr[0] = r2 - r4@ sub r11, r3, r7 @ xptr[1] = r3 - r7@ - - strd r10, [r14] + + strd r10, [r14] sub r14, r14, r9 @ xptr -= step@ - + sub r10, r0, r5 @ xptr[0] = r0 - r5@ sub r11, r1, r6 @ xptr[0] = r1 - r6 - - strd r10, [r14] + + strd r10, [r14] sub r14, r14, r9 @ xptr -= step@ - + add r10, r2, r4 @ xptr[0] = r2 - r4@ add r11, r3, r7 @ xptr[1] = r3 - r7@ - - strd r10, [r14] + + strd r10, [r14] add r14, r14, #8 @ xptr += 2@ - + ldr r11, [sp, #20] subs r11, r11, #1 - bne Radix4FFT_LOOP3 - -Radix4FFT_LOOP2_END: + bne Radix4FFT_LOOP3 + +Radix4FFT_LOOP2_END: ldr r10, [sp, #16] ldr r3, [sp, #12] ldr r2, [sp, #8] - rsb r8, r9, r9, lsl #2 + rsb r8, r9, r9, lsl #2 sub r10, r10, #1 - add r14, r14, r8 - cmp r10, #0 - bhi Radix4FFT_LOOP2 - -Radix4FFT_LOOP1_END: - ldr r0, [sp] + add r14, r14, r8 + cmp r10, #0 + bhi Radix4FFT_LOOP2 + +Radix4FFT_LOOP1_END: + ldr r0, [sp] ldr r1, [sp, #4] add r3, r3, r8, asr #1 - mov r2, r2, lsl #2 - movs r1, r1, asr #2 - bne Radix4FFT_LOOP1 - -Radix4FFT_END: - add sp, sp, #32 + mov r2, r2, lsl #2 + movs r1, r1, asr #2 + bne Radix4FFT_LOOP1 + +Radix4FFT_END: + add sp, sp, #32 ldmia sp!, {r4 - r11, pc} - + @ENDP @ |Radix4FFT| .end
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