diff options
Diffstat (limited to 'apps/plugins/mpegplayer/libmpeg2/idct_coldfire.S')
| -rw-r--r-- | apps/plugins/mpegplayer/libmpeg2/idct_coldfire.S | 575 |
1 files changed, 0 insertions, 575 deletions
diff --git a/apps/plugins/mpegplayer/libmpeg2/idct_coldfire.S b/apps/plugins/mpegplayer/libmpeg2/idct_coldfire.S deleted file mode 100644 index abc54b16cb..0000000000 --- a/apps/plugins/mpegplayer/libmpeg2/idct_coldfire.S +++ /dev/null @@ -1,575 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (C) 2007 Jens Arnold - * Based on the work of Karim Boucher and Rani Hod - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ - - .global mpeg2_idct_copy - .type mpeg2_idct_copy, @function - .global mpeg2_idct_add - .type mpeg2_idct_add, @function - - /* The IDCT itself. - * Input: %a0: block pointer - * Caller must save all registers. */ - .align 2 -.idct: - move.l %a0, %a6 - - move.l #0, %macsr | signed integer mode - - move.l #((2048<<16)+2841), %a0 | W0, W1 - move.l #((2676<<16)+2408), %a1 | W2, W3 - move.l #((2048<<16)+1609), %a2 | W4, W5 - move.l #((1108<<16)+ 565), %a3 | W6, W7 - - lea.l (128,%a6), %a4 | secondary, transposed temp buffer - moveq.l #8, %d3 | loop counter - -.row_loop: - movem.l (%a6), %d0-%d2/%a5 | fetch (f0, f2, f4, f6, f1, f3, f5, f7) - - mac.w %a0l, %d2u, %acc0 | %acc0 = W1 * f1 - mac.w %a1l, %d2l, %acc0 | + W3 * f3 - mac.w %a2l, %a5u, %acc0 | + W5 * f5 - mac.w %a3l, %a5l, %acc0 | + W7 * f7 - - mac.w %a1l, %d2u, %acc1 | %acc1 = W3 * f1 - msac.w %a3l, %d2l, %acc1 | - W7 * f3 - msac.w %a0l, %a5u, %acc1 | - W1 * f5 - msac.w %a2l, %a5l, %acc1 | - W5 * f7 - - mac.w %a2l, %d2u, %acc2 | %acc2 = W5 * f1 - msac.w %a0l, %d2l, %acc2 | - W1 * f3 - mac.w %a3l, %a5u, %acc2 | + W7 * f5 - mac.w %a1l, %a5l, %acc2 | + W3 * f7 - - mac.w %a3l, %d2u, %acc3 | %acc3 = W7 * f1 - msac.w %a2l, %d2l, %acc3 | - W5 * f3 - mac.w %a1l, %a5u, %acc3 | + W3 * f5 - msac.w %a0l, %a5l, %acc3 | - W1 * f7 - - lea.l (16,%a6), %a6 | Advance to next row; put here to fill EMAC latency - add.l #(1<<16), %d0 | f0 += 1; - - movclr.l %acc0, %d4 | b0 - movclr.l %acc1, %d5 | b1 - movclr.l %acc2, %d6 | b2 - movclr.l %acc3, %d7 | b3 - - mac.w %a0u, %d0u, %acc0 | %acc0 = W0 * f0 - mac.w %a2u, %d1u, %acc0 | + W4 * f4 - move.l %acc0, %acc3 - mac.w %a1u, %d0l, %acc0 | + W2 * f2 - mac.w %a3u, %d1l, %acc0 | + W6 * f6 - - mac.w %a0u, %d0u, %acc1 | %acc1 = W0 * f0 - msac.w %a2u, %d1u, %acc1 | - W4 * f4 - move.l %acc1, %acc2 - mac.w %a3u, %d0l, %acc1 | + W6 * f2 - msac.w %a1u, %d1l, %acc1 | - W2 * f6 - - | ^ move.l %acc1, %acc2 %acc2 = W0 * f0 - W4 * f4 - msac.w %a3u, %d0l, %acc2 | - W6 * f2 - mac.w %a1u, %d1l, %acc2 | + W2 * f6 - - | ^ move.l %acc0, %acc3 %acc3 = W0 * f0 + W4 * f4 - msac.w %a1u, %d0l, %acc3 | - W2 * f2 - msac.w %a3u, %d1l, %acc3 | - W6 * f6 - - moveq.l #12, %d1 | shift amount - - move.l %acc0, %d0 | block[7] = (a0 - sub.l %d4,%d0 | - b0) - asr.l %d1, %d0 | >> 12 - move.w %d0, (7*16,%a4) - - move.l %acc1, %d0 | block[6] = (a1 - sub.l %d5,%d0 | - b1) - asr.l %d1, %d0 | >> 12 - move.w %d0, (6*16,%a4) - - move.l %acc2, %d0 | block[5] = (a2 - sub.l %d6,%d0 | - b2) - asr.l %d1, %d0 | >> 12 - move.w %d0, (5*16,%a4) - - move.l %acc3, %d0 | block[4] = (a3 - sub.l %d7,%d0 | - b3) - asr.l %d1, %d0 | >> 12 - move.w %d0, (4*16,%a4) - - movclr.l %acc3, %d0 | block[3] = (a3 - add.l %d7, %d0 | + b3) - asr.l %d1, %d0 | >> 12 - move.w %d0, (3*16,%a4) - - movclr.l %acc2, %d0 | block[2] = (a2 - add.l %d6, %d0 | + b2) - asr.l %d1, %d0 | >> 12 - move.w %d0, (2*16,%a4) - - movclr.l %acc1, %d0 | block[1] = (a1 - add.l %d5, %d0 | + b1) - asr.l %d1, %d0 | >> 12 - move.w %d0, (1*16,%a4) - - movclr.l %acc0, %d0 | block[0] = (a0 - add.l %d4, %d0 | + b0) - asr.l %d1, %d0 | >> 12 - move.w %d0, (%a4)+ | advance to next temp column - - subq.l #1, %d3 | loop 8 times - bne.w .row_loop - - | %a6 now points to the temp buffer, where we need it. - lea.l (-16-128,%a4), %a4 | point %a4 back to the input block - moveq.l #8, %d3 | loop counter - -.col_loop: - movem.l (%a6), %d0-%d2/%a5 | fetch (f0, f2, f4, f6, f1, f3, f5, f7) - - mac.w %a0l, %d2u, %acc0 | %acc0 = W1 * f1 - mac.w %a1l, %d2l, %acc0 | + W3 * f3 - mac.w %a2l, %a5u, %acc0 | + W5 * f5 - mac.w %a3l, %a5l, %acc0 | + W7 * f7 - - mac.w %a1l, %d2u, %acc1 | %acc1 = W3 * f1 - msac.w %a3l, %d2l, %acc1 | - W7 * f3 - msac.w %a0l, %a5u, %acc1 | - W1 * f5 - msac.w %a2l, %a5l, %acc1 | - W5 * f7 - - mac.w %a2l, %d2u, %acc2 | %acc2 = W5 * f1 - msac.w %a0l, %d2l, %acc2 | - W1 * f3 - mac.w %a3l, %a5u, %acc2 | + W7 * f5 - mac.w %a1l, %a5l, %acc2 | + W3 * f7 - - mac.w %a3l, %d2u, %acc3 | %acc3 = W7 * f1 - msac.w %a2l, %d2l, %acc3 | - W5 * f3 - mac.w %a1l, %a5u, %acc3 | + W3 * f5 - msac.w %a0l, %a5l, %acc3 | - W1 * f7 - - lea.l (16,%a6), %a6 | Advance to next row; put here to fill EMAC latency - add.l #(32<<16), %d0 | DC offset: 0.5 - - movclr.l %acc0, %d4 | b0 - movclr.l %acc1, %d5 | b1 - movclr.l %acc2, %d6 | b2 - movclr.l %acc3, %d7 | b3 - - mac.w %a0u, %d0u, %acc0 | %acc0 = W0 * f0 - mac.w %a2u, %d1u, %acc0 | + W4 * f4 - move.l %acc0, %acc3 - mac.w %a1u, %d0l, %acc0 | + W2 * f2 - mac.w %a3u, %d1l, %acc0 | + W6 * f6 - - mac.w %a0u, %d0u, %acc1 | %acc1 = W0 * f0 - msac.w %a2u, %d1u, %acc1 | - W4 * f4 - move.l %acc1, %acc2 - mac.w %a3u, %d0l, %acc1 | + W6 * f2 - msac.w %a1u, %d1l, %acc1 | - W2 * f6 - - | ^ move.l %acc1, %acc2 %acc2 = W0 * f0 - W4 * f4 - msac.w %a3u, %d0l, %acc2 | - W6 * f2 - mac.w %a1u, %d1l, %acc2 | + W2 * f6 - - | ^ move.l %acc0, %acc3 %acc3 = W0 * f0 + W4 * f4 - msac.w %a1u, %d0l, %acc3 | - W2 * f2 - msac.w %a3u, %d1l, %acc3 | - W6 * f6 - - moveq.l #17, %d1 | shift amount - - move.l %acc0, %d0 | block[7] = (a0 - sub.l %d4,%d0 | - b0) - asr.l %d1, %d0 | >> 17 - move.w %d0, (7*16,%a4) - - move.l %acc1, %d0 | block[6] = (a1 - sub.l %d5,%d0 | - b1) - asr.l %d1, %d0 | >> 17 - move.w %d0, (6*16,%a4) - - move.l %acc2, %d0 | block[5] = (a2 - sub.l %d6,%d0 | - b2) - asr.l %d1, %d0 | >> 17 - move.w %d0, (5*16,%a4) - - move.l %acc3, %d0 | block[4] = (a3 - sub.l %d7,%d0 | - b3) - asr.l %d1, %d0 | >> 17 - move.w %d0, (4*16,%a4) - - movclr.l %acc3, %d0 | block[3] = (a3 - add.l %d7, %d0 | + b3) - asr.l %d1, %d0 | >> 17 - move.w %d0, (3*16,%a4) - - movclr.l %acc2, %d0 | block[2] = (a2 - add.l %d6, %d0 | + b2) - asr.l %d1, %d0 | >> 17 - move.w %d0, (2*16,%a4) - - movclr.l %acc1, %d0 | block[1] = (a1 - add.l %d5, %d0 | + b1) - asr.l %d1, %d0 | >> 17 - move.w %d0, (1*16,%a4) - - movclr.l %acc0, %d0 | block[0] = (a0 - add.l %d4, %d0 | + b0) - asr.l %d1, %d0 | >> 17 - move.w %d0, (%a4)+ | advance to next column - - subq.l #1, %d3 | loop 8 times - bne.w .col_loop - - rts - - .align 2 - -mpeg2_idct_copy: - lea.l (-11*4,%sp), %sp - movem.l %d2-%d7/%a2-%a6, (%sp) | save some registers - move.l (11*4+4,%sp), %a0 | %a0 - block pointer for idct - - bsr.w .idct | apply idct to block - movem.l (11*4+4,%sp), %a0-%a2 | %a0 - block pointer - | %a1 - destination pointer - | %a2 - stride - - move.l #255, %d1 | preload constant for clipping - moveq.l #8, %d4 | loop counter - -.copy_clip_loop: - move.w (%a0), %d0 | load block[0] - ext.l %d0 | sign extend - cmp.l %d1, %d0 | overflow? - bls.b 1f - spl.b %d0 | yes: set appropriate limit value in low byte -1: - move.b %d0, %d2 | collect output bytes 0..3 in %d2 - lsl.l #8, %d2 - - move.w (2,%a0), %d0 | load block[1] - ext.l %d0 | sign extend - cmp.l %d1, %d0 | overflow? - bls.b 1f - spl.b %d0 | yes: set appropriate limit value in low byte -1: - move.b %d0, %d2 | collect output bytes 0..3 in %d2 - lsl.l #8, %d2 - clr.l (%a0)+ | clear block[0] and block[1], - | %a0 now pointing to block[2] - move.w (%a0), %d0 | do b2 and b3 - ext.l %d0 - cmp.l %d1, %d0 - bls.b 1f - spl.b %d0 -1: - move.b %d0, %d2 - lsl.l #8, %d2 - - move.w (2,%a0), %d0 - ext.l %d0 - cmp.l %d1, %d0 - bls.b 1f - spl.b %d0 -1: - move.b %d0, %d2 - clr.l (%a0)+ - - move.w (%a0), %d0 | do b4 and b5 - ext.l %d0 - cmp.l %d1, %d0 - bls.b 1f - spl.b %d0 -1: - move.b %d0, %d3 - lsl.l #8, %d3 - - move.w (2,%a0), %d0 - ext.l %d0 - cmp.l %d1, %d0 - bls.b 1f - spl.b %d0 -1: - move.b %d0, %d3 - lsl.l #8, %d3 - clr.l (%a0)+ - - move.w (%a0), %d0 | do b6 and b7 - ext.l %d0 - cmp.l %d1, %d0 - bls.b 1f - spl.b %d0 -1: - move.b %d0, %d3 - lsl.l #8, %d3 - - move.w (2,%a0), %d0 - ext.l %d0 - cmp.l %d1, %d0 - bls.b 1f - spl.b %d0 -1: - move.b %d0, %d3 - clr.l (%a0)+ - - movem.l %d2-%d3, (%a1) | write all 8 output bytes at once - add.l %a2, %a1 | advance output pointer - subq.l #1, %d4 | loop 8 times - bne.w .copy_clip_loop - - movem.l (%sp), %d2-%d7/%a2-%a6 - lea.l (11*4,%sp), %sp - rts - - .align 2 - -mpeg2_idct_add: - lea.l (-11*4,%sp), %sp - movem.l %d2-%d7/%a2-%a6, (%sp) - movem.l (11*4+4,%sp), %d0/%a0-%a2 | %d0 - last value - | %a0 - block pointer - | %a1 - destination pointer - | %a2 - stride - - cmp.l #129, %d0 | last == 129 ? - bne.b .idct_add | no: perform idct + addition - move.w (%a0), %d0 - ext.l %d0 | ((block[0] - asr.l #4, %d0 | >> 4) - and.l #7, %d0 | & 7) - subq.l #4, %d0 | - 4 == 0 ? - bne.w .dc_add | no: just perform addition - -.idct_add: - bsr.w .idct | apply idct - movem.l (11*4+8,%sp), %a0-%a2 | reload arguments %a0..%a2 - - move.l #255, %d2 | preload constant for clipping - clr.l %d3 | used for splitting input words into bytes - moveq.l #8, %d4 | loop counter - -.add_clip_loop: - movem.l (%a1), %d6-%d7 | fetch (b0 b1 b2 b3) (b4 b5 b6 b7) - swap %d6 | (b2 b3 b0 b1) - swap %d7 | (b6 b7 b4 b5) - - move.w (2,%a0), %d0 | load block[1] - ext.l %d0 | sign extend - move.b %d6, %d3 | copy b1 - lsr.l #8, %d6 | prepare 1st buffer for next byte - add.l %d3, %d0 | add b1 - cmp.l %d2, %d0 | overflow ? - bls.b 1f - spl.b %d0 | yes: set appropriate limit value in low byte -1: - move.w (%a0), %d1 | load block[0] - ext.l %d1 | sign extend - move.b %d6, %d3 | copy b0 - lsr.l #8, %d6 | prepare 1st buffer for next byte - add.l %d3, %d1 | add b0 - cmp.l %d2, %d1 | overflow ? - bls.b 1f - spl.b %d1 | yes: set appropriate limit value in low byte -1: - move.b %d1, %d5 | collect output bytes 0..3 in %d5 - lsl.l #8, %d5 - move.b %d0, %d5 - lsl.l #8, %d5 - clr.l (%a0)+ | clear block[0] and block[1] - | %a0 now pointing to block[2] - move.w (2,%a0), %d0 | do b3 and b2 - ext.l %d0 - move.b %d6, %d3 - lsr.l #8, %d6 - add.l %d3, %d0 - cmp.l %d2, %d0 - bls.b 1f - spl.b %d0 -1: - move.w (%a0), %d1 - ext.l %d1 - add.l %d6, %d1 - cmp.l %d2, %d1 - bls.b 1f - spl.b %d1 -1: - move.b %d1, %d5 - lsl.l #8, %d5 - move.b %d0, %d5 - clr.l (%a0)+ - - move.w (2,%a0), %d0 | do b5 and b4 - ext.l %d0 - move.b %d7, %d3 - lsr.l #8, %d7 - add.l %d3, %d0 - cmp.l %d2, %d0 - bls.b 1f - spl.b %d0 -1: - move.w (%a0), %d1 - ext.l %d1 - move.b %d7, %d3 - lsr.l #8, %d7 - add.l %d3, %d1 - cmp.l %d2, %d1 - bls.b 1f - spl.b %d1 -1: - move.b %d1, %d6 - lsl.l #8, %d6 - move.b %d0, %d6 - lsl.l #8, %d6 - clr.l (%a0)+ - - move.w (2,%a0), %d0 | do b7 and b6 - ext.l %d0 - move.b %d7, %d3 - lsr.l #8, %d7 - add.l %d3, %d0 - cmp.l %d2, %d0 - bls.b 1f - spl.b %d0 -1: - move.w (%a0), %d1 - ext.l %d1 - add.l %d7, %d1 - cmp.l %d2, %d1 - bls.b 1f - spl.b %d1 -1: - move.b %d1, %d6 - lsl.l #8, %d6 - move.b %d0, %d6 - clr.l (%a0)+ - - movem.l %d5-%d6, (%a1) | write all 8 output bytes at once - add.l %a2, %a1 | advance output pointer - subq.l #1, %d4 | loop 8 times - bne.w .add_clip_loop - - bra.w .idct_add_end - -.dc_add: - move.w (%a0), %d0 - ext.l %d0 | %d0 = (block[0] - add.l #64, %d0 | + 64) - asr.l #7, %d0 | >> 7 - clr.w (%a0) | clear block[0] - clr.w (63*2,%a0) | and block[63] - move.l %d0, %a0 | DC value in %a0 - - move.l #255, %d2 | preload constant for clipping - clr.l %d3 | for splitting input words into bytes - moveq.l #8, %d4 | loop counter - -.dc_clip_loop: - movem.l (%a1), %d6-%d7 | (b0 b1 b2 b3) (b4 b5 b6 b7) - swap %d6 | (b2 b3 b0 b1) - swap %d7 | (b6 b7 b4 b5) - - move.l %a0, %d0 | copy DC - move.b %d6, %d3 | copy b1 - lsr.l #8, %d6 | prepare 1st buffer for next byte - add.l %d3, %d0 | add b1 - cmp.l %d2, %d0 | overflow ? - bls.b 1f - spl.b %d0 | yes: set appropriate limit value in low byte -1: - move.l %a0, %d1 | copy DC - move.b %d6, %d3 | copy b0 - lsr.l #8, %d6 | prepare 1st buffer for next byte - add.l %d3, %d1 | add b0 - cmp.l %d2, %d1 | overflow ? - bls.b 1f - spl.b %d1 | yes: set appropriate limit value in low byte -1: - move.b %d1, %d5 | collect output bytes 0..3 in %d5 - lsl.l #8, %d5 - move.b %d0, %d5 - lsl.l #8, %d5 - - move.l %a0, %d0 | do b3 and b2 - move.b %d6, %d3 - lsr.l #8, %d6 - add.l %d3, %d0 - cmp.l %d2, %d0 - bls.b 1f - spl.b %d0 -1: - move.l %a0, %d1 - add.l %d6, %d1 - cmp.l %d2, %d1 - bls.b 1f - spl.b %d1 -1: - move.b %d1, %d5 - lsl.l #8, %d5 - move.b %d0, %d5 - - move.l %a0, %d0 | do b5 and b4 - move.b %d7, %d3 - lsr.l #8, %d7 - add.l %d3, %d0 - cmp.l %d2, %d0 - bls.b 1f - spl.b %d0 -1: - move.l %a0, %d1 - move.b %d7, %d3 - lsr.l #8, %d7 - add.l %d3, %d1 - cmp.l %d2, %d1 - bls.b 1f - spl.b %d1 -1: - move.b %d1, %d6 | do b7 and b6 - lsl.l #8, %d6 - move.b %d0, %d6 - lsl.l #8, %d6 - - move.l %a0, %d0 - move.b %d7, %d3 - lsr.l #8, %d7 - add.l %d3, %d0 - cmp.l %d2, %d0 - bls.b 1f - spl.b %d0 -1: - move.l %a0, %d1 - add.l %d7, %d1 - cmp.l %d2, %d1 - bls.b 1f - spl.b %d1 -1: - move.b %d1, %d6 - lsl.l #8, %d6 - move.b %d0, %d6 - - movem.l %d5-%d6, (%a1) | write all 8 output bytes at once - add.l %a2, %a1 | advance output pointer - subq.l #1, %d4 | loop 8 times - bne.w .dc_clip_loop - -.idct_add_end: - movem.l (%sp), %d2-%d7/%a2-%a6 - lea.l (11*4,%sp), %sp - rts |