diff options
Diffstat (limited to 'libavcodec/armv4l/simple_idct_arm.S')
| -rw-r--r-- | libavcodec/armv4l/simple_idct_arm.S | 326 |
1 files changed, 163 insertions, 163 deletions
diff --git a/libavcodec/armv4l/simple_idct_arm.S b/libavcodec/armv4l/simple_idct_arm.S index 00dcb58489..70fdfac005 100644 --- a/libavcodec/armv4l/simple_idct_arm.S +++ b/libavcodec/armv4l/simple_idct_arm.S @@ -51,9 +51,9 @@ #define COL_SHIFTED_1 524288 /* 1<< (COL_SHIFT-1) */ - .text - .align - .global simple_idct_ARM + .text + .align + .global simple_idct_ARM simple_idct_ARM: @@ void simple_idct_ARM(int16_t *block) @@ -120,8 +120,8 @@ __b_evaluation: ldr r11, [r12, #offW7] @ R11=W7 mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - teq r2, #0 @ if null avoid muls - mlane r0, r9, r2, r0 @ R0+=W3*ROWr16[3]=b0 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) + teq r2, #0 @ if null avoid muls + mlane r0, r9, r2, r0 @ R0+=W3*ROWr16[3]=b0 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) rsbne r2, r2, #0 @ R2=-ROWr16[3] mlane r1, r11, r2, r1 @ R1-=W7*ROWr16[3]=b1 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) mlane r5, r8, r2, r5 @ R5-=W1*ROWr16[3]=b2 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) @@ -147,7 +147,7 @@ __b_evaluation: @@ MAC16(b3, -W1, row[7]); @@ MAC16(b1, -W5, row[7]); mov r3, r3, asr #16 @ R3=ROWr16[5] - teq r3, #0 @ if null avoid muls + teq r3, #0 @ if null avoid muls mlane r0, r10, r3, r0 @ R0+=W5*ROWr16[5]=b0 mov r4, r4, asr #16 @ R4=ROWr16[7] mlane r5, r11, r3, r5 @ R5+=W7*ROWr16[5]=b2 @@ -155,7 +155,7 @@ __b_evaluation: rsbne r3, r3, #0 @ R3=-ROWr16[5] mlane r1, r8, r3, r1 @ R7-=W1*ROWr16[5]=b1 @@ R3 is free now - teq r4, #0 @ if null avoid muls + teq r4, #0 @ if null avoid muls mlane r0, r11, r4, r0 @ R0+=W7*ROWr16[7]=b0 mlane r5, r9, r4, r5 @ R5+=W3*ROWr16[7]=b2 rsbne r4, r4, #0 @ R4=-ROWr16[7] @@ -187,7 +187,7 @@ __a_evaluation: teq r2, #0 beq __end_bef_a_evaluation - add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1) + add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1) mul r11, r8, r4 @ R11=W2*ROWr16[2] sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3) add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0) @@ -203,7 +203,7 @@ __a_evaluation: @@ a2 -= W4*row[4] @@ a3 += W4*row[4] ldrsh r11, [r14, #8] @ R11=ROWr16[4] - teq r11, #0 @ if null avoid muls + teq r11, #0 @ if null avoid muls mulne r11, r9, r11 @ R11=W4*ROWr16[4] @@ R9 is free now ldrsh r9, [r14, #12] @ R9=ROWr16[6] @@ -212,7 +212,7 @@ __a_evaluation: subne r3, r3, r11 @ R3-=W4*ROWr16[4] (a2) addne r4, r4, r11 @ R4+=W4*ROWr16[4] (a3) @@ W6 alone is no more useful, save W2*ROWr16[6] in it instead - teq r9, #0 @ if null avoid muls + teq r9, #0 @ if null avoid muls mulne r11, r10, r9 @ R11=W6*ROWr16[6] addne r6, r6, r11 @ R6+=W6*ROWr16[6] (a0) mulne r10, r8, r9 @ R10=W2*ROWr16[6] @@ -294,165 +294,165 @@ __end_row_loop: - @@ at this point, R0=block, R1-R11 (free) - @@ R12=__const_ptr_, R14=&block[n] - add r14, r0, #14 @ R14=&block[7], better start from the last col, and decrease the value until col=0, i.e. R14=block. + @@ at this point, R0=block, R1-R11 (free) + @@ R12=__const_ptr_, R14=&block[n] + add r14, r0, #14 @ R14=&block[7], better start from the last col, and decrease the value until col=0, i.e. R14=block. __col_loop: __b_evaluation2: - @@ at this point, R0=block (temp), R1-R11 (free) - @@ R12=__const_ptr_, R14=&block[n] - @@ proceed with b0-b3 first, followed by a0-a3 - @@ MUL16(b0, W1, col[8x1]); - @@ MUL16(b1, W3, col[8x1]); - @@ MUL16(b2, W5, col[8x1]); - @@ MUL16(b3, W7, col[8x1]); - @@ MAC16(b0, W3, col[8x3]); - @@ MAC16(b1, -W7, col[8x3]); - @@ MAC16(b2, -W1, col[8x3]); - @@ MAC16(b3, -W5, col[8x3]); - ldr r8, [r12, #offW1] @ R8=W1 - ldrsh r7, [r14, #16] - mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - ldr r9, [r12, #offW3] @ R9=W3 - ldr r10, [r12, #offW5] @ R10=W5 - mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - ldr r11, [r12, #offW7] @ R11=W7 - mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - ldrsh r2, [r14, #48] - mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) - teq r2, #0 @ if 0, then avoid muls - mlane r0, r9, r2, r0 @ R0+=W3*ROWr16[3]=b0 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) - rsbne r2, r2, #0 @ R2=-ROWr16[3] - mlane r1, r11, r2, r1 @ R1-=W7*ROWr16[3]=b1 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) - mlane r5, r8, r2, r5 @ R5-=W1*ROWr16[3]=b2 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) - mlane r7, r10, r2, r7 @ R7-=W5*ROWr16[3]=b3 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) - - @@ at this point, R0=b0, R1=b1, R2 (free), R3 (free), R4 (free), - @@ R5=b2, R6 (free), R7=b3, R8=W1, R9=W3, R10=W5, R11=W7, - @@ R12=__const_ptr_, R14=&block[n] - @@ MAC16(b0, W5, col[5x8]); - @@ MAC16(b2, W7, col[5x8]); - @@ MAC16(b3, W3, col[5x8]); - @@ MAC16(b1, -W1, col[5x8]); - @@ MAC16(b0, W7, col[7x8]); - @@ MAC16(b2, W3, col[7x8]); - @@ MAC16(b3, -W1, col[7x8]); - @@ MAC16(b1, -W5, col[7x8]); - ldrsh r3, [r14, #80] @ R3=COLr16[5x8] - teq r3, #0 @ if 0 then avoid muls - mlane r0, r10, r3, r0 @ R0+=W5*ROWr16[5x8]=b0 - mlane r5, r11, r3, r5 @ R5+=W7*ROWr16[5x8]=b2 - mlane r7, r9, r3, r7 @ R7+=W3*ROWr16[5x8]=b3 - rsbne r3, r3, #0 @ R3=-ROWr16[5x8] - ldrsh r4, [r14, #112] @ R4=COLr16[7x8] - mlane r1, r8, r3, r1 @ R7-=W1*ROWr16[5x8]=b1 - @@ R3 is free now - teq r4, #0 @ if 0 then avoid muls - mlane r0, r11, r4, r0 @ R0+=W7*ROWr16[7x8]=b0 - mlane r5, r9, r4, r5 @ R5+=W3*ROWr16[7x8]=b2 - rsbne r4, r4, #0 @ R4=-ROWr16[7x8] - mlane r7, r8, r4, r7 @ R7-=W1*ROWr16[7x8]=b3 - mlane r1, r10, r4, r1 @ R1-=W5*ROWr16[7x8]=b1 - @@ R4 is free now + @@ at this point, R0=block (temp), R1-R11 (free) + @@ R12=__const_ptr_, R14=&block[n] + @@ proceed with b0-b3 first, followed by a0-a3 + @@ MUL16(b0, W1, col[8x1]); + @@ MUL16(b1, W3, col[8x1]); + @@ MUL16(b2, W5, col[8x1]); + @@ MUL16(b3, W7, col[8x1]); + @@ MAC16(b0, W3, col[8x3]); + @@ MAC16(b1, -W7, col[8x3]); + @@ MAC16(b2, -W1, col[8x3]); + @@ MAC16(b3, -W5, col[8x3]); + ldr r8, [r12, #offW1] @ R8=W1 + ldrsh r7, [r14, #16] + mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) + ldr r9, [r12, #offW3] @ R9=W3 + ldr r10, [r12, #offW5] @ R10=W5 + mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) + ldr r11, [r12, #offW7] @ R11=W7 + mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) + ldrsh r2, [r14, #48] + mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle) + teq r2, #0 @ if 0, then avoid muls + mlane r0, r9, r2, r0 @ R0+=W3*ROWr16[3]=b0 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) + rsbne r2, r2, #0 @ R2=-ROWr16[3] + mlane r1, r11, r2, r1 @ R1-=W7*ROWr16[3]=b1 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) + mlane r5, r8, r2, r5 @ R5-=W1*ROWr16[3]=b2 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) + mlane r7, r10, r2, r7 @ R7-=W5*ROWr16[3]=b3 (ROWr16[3] must be the second arg, to have the possibility to save 1 cycle) + + @@ at this point, R0=b0, R1=b1, R2 (free), R3 (free), R4 (free), + @@ R5=b2, R6 (free), R7=b3, R8=W1, R9=W3, R10=W5, R11=W7, + @@ R12=__const_ptr_, R14=&block[n] + @@ MAC16(b0, W5, col[5x8]); + @@ MAC16(b2, W7, col[5x8]); + @@ MAC16(b3, W3, col[5x8]); + @@ MAC16(b1, -W1, col[5x8]); + @@ MAC16(b0, W7, col[7x8]); + @@ MAC16(b2, W3, col[7x8]); + @@ MAC16(b3, -W1, col[7x8]); + @@ MAC16(b1, -W5, col[7x8]); + ldrsh r3, [r14, #80] @ R3=COLr16[5x8] + teq r3, #0 @ if 0 then avoid muls + mlane r0, r10, r3, r0 @ R0+=W5*ROWr16[5x8]=b0 + mlane r5, r11, r3, r5 @ R5+=W7*ROWr16[5x8]=b2 + mlane r7, r9, r3, r7 @ R7+=W3*ROWr16[5x8]=b3 + rsbne r3, r3, #0 @ R3=-ROWr16[5x8] + ldrsh r4, [r14, #112] @ R4=COLr16[7x8] + mlane r1, r8, r3, r1 @ R7-=W1*ROWr16[5x8]=b1 + @@ R3 is free now + teq r4, #0 @ if 0 then avoid muls + mlane r0, r11, r4, r0 @ R0+=W7*ROWr16[7x8]=b0 + mlane r5, r9, r4, r5 @ R5+=W3*ROWr16[7x8]=b2 + rsbne r4, r4, #0 @ R4=-ROWr16[7x8] + mlane r7, r8, r4, r7 @ R7-=W1*ROWr16[7x8]=b3 + mlane r1, r10, r4, r1 @ R1-=W5*ROWr16[7x8]=b1 + @@ R4 is free now __end_b_evaluation2: - @@ at this point, R0=b0, R1=b1, R2 (free), R3 (free), R4 (free), - @@ R5=b2, R6 (free), R7=b3, R8 (free), R9 (free), R10 (free), R11 (free), - @@ R12=__const_ptr_, R14=&block[n] + @@ at this point, R0=b0, R1=b1, R2 (free), R3 (free), R4 (free), + @@ R5=b2, R6 (free), R7=b3, R8 (free), R9 (free), R10 (free), R11 (free), + @@ R12=__const_ptr_, R14=&block[n] __a_evaluation2: - @@ a0 = (W4 * col[8x0]) + (1 << (COL_SHIFT - 1)); - @@ a1 = a0 + W6 * row[2]; - @@ a2 = a0 - W6 * row[2]; - @@ a3 = a0 - W2 * row[2]; - @@ a0 = a0 + W2 * row[2]; - ldrsh r6, [r14, #0] - ldr r9, [r12, #offW4] @ R9=W4 - mul r6, r9, r6 @ R6=W4*ROWr16[0] - ldr r10, [r12, #offW6] @ R10=W6 - ldrsh r4, [r14, #32] @ R4=ROWr16[2] (a3 not defined yet) - add r6, r6, #COL_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(COL_SHIFT-1) (a0) - mul r11, r10, r4 @ R11=W6*ROWr16[2] - ldr r8, [r12, #offW2] @ R8=W2 - add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1) - sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2) - mul r11, r8, r4 @ R11=W2*ROWr16[2] - sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3) - add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0) - - @@ at this point, R0=b0, R1=b1, R2=a1, R3=a2, R4=a3, - @@ R5=b2, R6=a0, R7=b3, R8=W2, R9=W4, R10=W6, R11 (free), - @@ R12=__const_ptr_, R14=&block[n] - @@ a0 += W4*row[4] - @@ a1 -= W4*row[4] - @@ a2 -= W4*row[4] - @@ a3 += W4*row[4] - ldrsh r11, [r14, #64] @ R11=ROWr16[4] - teq r11, #0 @ if null avoid muls - mulne r11, r9, r11 @ R11=W4*ROWr16[4] - @@ R9 is free now - addne r6, r6, r11 @ R6+=W4*ROWr16[4] (a0) - subne r2, r2, r11 @ R2-=W4*ROWr16[4] (a1) - subne r3, r3, r11 @ R3-=W4*ROWr16[4] (a2) - ldrsh r9, [r14, #96] @ R9=ROWr16[6] - addne r4, r4, r11 @ R4+=W4*ROWr16[4] (a3) - @@ W6 alone is no more useful, save W2*ROWr16[6] in it instead - teq r9, #0 @ if null avoid muls - mulne r11, r10, r9 @ R11=W6*ROWr16[6] - addne r6, r6, r11 @ R6+=W6*ROWr16[6] (a0) - mulne r10, r8, r9 @ R10=W2*ROWr16[6] - @@ a0 += W6*row[6]; - @@ a3 -= W6*row[6]; - @@ a1 -= W2*row[6]; - @@ a2 += W2*row[6]; - subne r4, r4, r11 @ R4-=W6*ROWr16[6] (a3) - subne r2, r2, r10 @ R2-=W2*ROWr16[6] (a1) - addne r3, r3, r10 @ R3+=W2*ROWr16[6] (a2) + @@ a0 = (W4 * col[8x0]) + (1 << (COL_SHIFT - 1)); + @@ a1 = a0 + W6 * row[2]; + @@ a2 = a0 - W6 * row[2]; + @@ a3 = a0 - W2 * row[2]; + @@ a0 = a0 + W2 * row[2]; + ldrsh r6, [r14, #0] + ldr r9, [r12, #offW4] @ R9=W4 + mul r6, r9, r6 @ R6=W4*ROWr16[0] + ldr r10, [r12, #offW6] @ R10=W6 + ldrsh r4, [r14, #32] @ R4=ROWr16[2] (a3 not defined yet) + add r6, r6, #COL_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(COL_SHIFT-1) (a0) + mul r11, r10, r4 @ R11=W6*ROWr16[2] + ldr r8, [r12, #offW2] @ R8=W2 + add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1) + sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2) + mul r11, r8, r4 @ R11=W2*ROWr16[2] + sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3) + add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0) + + @@ at this point, R0=b0, R1=b1, R2=a1, R3=a2, R4=a3, + @@ R5=b2, R6=a0, R7=b3, R8=W2, R9=W4, R10=W6, R11 (free), + @@ R12=__const_ptr_, R14=&block[n] + @@ a0 += W4*row[4] + @@ a1 -= W4*row[4] + @@ a2 -= W4*row[4] + @@ a3 += W4*row[4] + ldrsh r11, [r14, #64] @ R11=ROWr16[4] + teq r11, #0 @ if null avoid muls + mulne r11, r9, r11 @ R11=W4*ROWr16[4] + @@ R9 is free now + addne r6, r6, r11 @ R6+=W4*ROWr16[4] (a0) + subne r2, r2, r11 @ R2-=W4*ROWr16[4] (a1) + subne r3, r3, r11 @ R3-=W4*ROWr16[4] (a2) + ldrsh r9, [r14, #96] @ R9=ROWr16[6] + addne r4, r4, r11 @ R4+=W4*ROWr16[4] (a3) + @@ W6 alone is no more useful, save W2*ROWr16[6] in it instead + teq r9, #0 @ if null avoid muls + mulne r11, r10, r9 @ R11=W6*ROWr16[6] + addne r6, r6, r11 @ R6+=W6*ROWr16[6] (a0) + mulne r10, r8, r9 @ R10=W2*ROWr16[6] + @@ a0 += W6*row[6]; + @@ a3 -= W6*row[6]; + @@ a1 -= W2*row[6]; + @@ a2 += W2*row[6]; + subne r4, r4, r11 @ R4-=W6*ROWr16[6] (a3) + subne r2, r2, r10 @ R2-=W2*ROWr16[6] (a1) + addne r3, r3, r10 @ R3+=W2*ROWr16[6] (a2) __end_a_evaluation2: - @@ at this point, R0=b0, R1=b1, R2=a1, R3=a2, R4=a3, - @@ R5=b2, R6=a0, R7=b3, R8 (free), R9 (free), R10 (free), R11 (free), - @@ R12=__const_ptr_, R14=&block[n] - @@ col[0 ] = ((a0 + b0) >> COL_SHIFT); - @@ col[8 ] = ((a1 + b1) >> COL_SHIFT); - @@ col[16] = ((a2 + b2) >> COL_SHIFT); - @@ col[24] = ((a3 + b3) >> COL_SHIFT); - @@ col[32] = ((a3 - b3) >> COL_SHIFT); - @@ col[40] = ((a2 - b2) >> COL_SHIFT); - @@ col[48] = ((a1 - b1) >> COL_SHIFT); - @@ col[56] = ((a0 - b0) >> COL_SHIFT); - @@@@@ no optimisation here @@@@@ - add r8, r6, r0 @ R8=a0+b0 - add r9, r2, r1 @ R9=a1+b1 - mov r8, r8, asr #COL_SHIFT - mov r9, r9, asr #COL_SHIFT - strh r8, [r14, #0] - strh r9, [r14, #16] - add r8, r3, r5 @ R8=a2+b2 - add r9, r4, r7 @ R9=a3+b3 - mov r8, r8, asr #COL_SHIFT - mov r9, r9, asr #COL_SHIFT - strh r8, [r14, #32] - strh r9, [r14, #48] - sub r8, r4, r7 @ R8=a3-b3 - sub r9, r3, r5 @ R9=a2-b2 - mov r8, r8, asr #COL_SHIFT - mov r9, r9, asr #COL_SHIFT - strh r8, [r14, #64] - strh r9, [r14, #80] - sub r8, r2, r1 @ R8=a1-b1 - sub r9, r6, r0 @ R9=a0-b0 - mov r8, r8, asr #COL_SHIFT - mov r9, r9, asr #COL_SHIFT - strh r8, [r14, #96] - strh r9, [r14, #112] + @@ at this point, R0=b0, R1=b1, R2=a1, R3=a2, R4=a3, + @@ R5=b2, R6=a0, R7=b3, R8 (free), R9 (free), R10 (free), R11 (free), + @@ R12=__const_ptr_, R14=&block[n] + @@ col[0 ] = ((a0 + b0) >> COL_SHIFT); + @@ col[8 ] = ((a1 + b1) >> COL_SHIFT); + @@ col[16] = ((a2 + b2) >> COL_SHIFT); + @@ col[24] = ((a3 + b3) >> COL_SHIFT); + @@ col[32] = ((a3 - b3) >> COL_SHIFT); + @@ col[40] = ((a2 - b2) >> COL_SHIFT); + @@ col[48] = ((a1 - b1) >> COL_SHIFT); + @@ col[56] = ((a0 - b0) >> COL_SHIFT); + @@@@@ no optimisation here @@@@@ + add r8, r6, r0 @ R8=a0+b0 + add r9, r2, r1 @ R9=a1+b1 + mov r8, r8, asr #COL_SHIFT + mov r9, r9, asr #COL_SHIFT + strh r8, [r14, #0] + strh r9, [r14, #16] + add r8, r3, r5 @ R8=a2+b2 + add r9, r4, r7 @ R9=a3+b3 + mov r8, r8, asr #COL_SHIFT + mov r9, r9, asr #COL_SHIFT + strh r8, [r14, #32] + strh r9, [r14, #48] + sub r8, r4, r7 @ R8=a3-b3 + sub r9, r3, r5 @ R9=a2-b2 + mov r8, r8, asr #COL_SHIFT + mov r9, r9, asr #COL_SHIFT + strh r8, [r14, #64] + strh r9, [r14, #80] + sub r8, r2, r1 @ R8=a1-b1 + sub r9, r6, r0 @ R9=a0-b0 + mov r8, r8, asr #COL_SHIFT + mov r9, r9, asr #COL_SHIFT + strh r8, [r14, #96] + strh r9, [r14, #112] __end_col_loop: - @@ at this point, R0-R11 (free) - @@ R12=__const_ptr_, R14=&block[n] - ldr r0, [sp, #0] @ R0=block - teq r0, r14 @ compare current &block[n] to block, when block is reached, the loop is finished. - sub r14, r14, #2 - bne __col_loop + @@ at this point, R0-R11 (free) + @@ R12=__const_ptr_, R14=&block[n] + ldr r0, [sp, #0] @ R0=block + teq r0, r14 @ compare current &block[n] to block, when block is reached, the loop is finished. + sub r14, r14, #2 + bne __col_loop @@ -466,15 +466,15 @@ __end_simple_idct_ARM: @@ kind of sub-function, here not to overload the common case. __end_bef_a_evaluation: - add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1) + add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1) mul r11, r8, r4 @ R11=W2*ROWr16[2] sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3) add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0) - bal __end_a_evaluation + bal __end_a_evaluation __constant_ptr__: @@ see #defines at the beginning of the source code for values. - .align + .align .word W1 .word W2 .word W3 |