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-rw-r--r--sim/mips/dsp.igen1820
1 files changed, 0 insertions, 1820 deletions
diff --git a/sim/mips/dsp.igen b/sim/mips/dsp.igen
deleted file mode 100644
index 18aafcb..0000000
--- a/sim/mips/dsp.igen
+++ /dev/null
@@ -1,1820 +0,0 @@
-// -*- C -*-
-
-// Simulator definition for the MIPS DSP ASE.
-// Copyright (C) 2005 Free Software Foundation, Inc.
-// Contributed by MIPS Technologies, Inc. Written by Chao-ying Fu.
-//
-// This file is part of GDB, the GNU debugger.
-//
-// 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, or (at your option)
-// any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License along
-// with this program; if not, write to the Free Software Foundation, Inc.,
-// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-
-// op: 0 = ADD, 1 = SUB
-// sat: 0 = no saturation, 1 = saturation
-:function:::void:do_ph_op:int rd, int rs, int rt, int op, int sat
-{
- int i;
- signed32 h0;
- signed16 h1, h2;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- unsigned32 result = 0;
- for (i = 0; i < 32; i += 16, v1 >>= 16, v2 >>= 16)
- {
- h1 = (signed16)(v1 & 0xffff);
- h2 = (signed16)(v2 & 0xffff);
- if (op == 0) // ADD
- h0 = (signed32)h1 + (signed32)h2;
- else // SUB
- h0 = (signed32)h1 - (signed32)h2;
- if (((h0 & 0x10000) >> 1) != (h0 & 0x8000))
- {
- DSPCR |= DSPCR_OUFLAG4;
- if (sat == 1)
- {
- if (h0 & 0x10000)
- h0 = 0x8000;
- else
- h0 = 0x7fff;
- }
- }
- result |= ((unsigned32)((unsigned16)h0) << i);
- }
- GPR[rd] = EXTEND32 (result);
-}
-
-// op: 0 = ADD, 1 = SUB
-:function:::void:do_w_op:int rd, int rs, int rt, int op
-{
- signed64 h0;
- signed32 h1, h2;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- unsigned32 result = 0;
- h1 = (signed32)v1;
- h2 = (signed32)v2;
- if (op == 0) // ADD
- h0 = (signed64)h1 + (signed64)h2;
- else // SUB
- h0 = (signed64)h1 - (signed64)h2;
- if (((h0 & 0x100000000) >> 1) != (h0 & 0x80000000))
- {
- DSPCR |= DSPCR_OUFLAG4;
- if (h0 & 0x100000000)
- h0 = 0x80000000;
- else
- h0 = 0x7fffffff;
- }
- GPR[rd] = EXTEND32 (h0);
-}
-
-// op: 0 = ADD, 1 = SUB
-// sat: 0 = no saturation, 1 = saturation
-:function:::void:do_qb_op:int rd, int rs, int rt, int op, int sat
-{
- int i;
- unsigned32 h0;
- unsigned8 h1, h2;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- unsigned32 result = 0;
- for (i = 0; i < 32; i += 8, v1 >>= 8, v2 >>= 8)
- {
- h1 = (unsigned8)(v1 & 0xff);
- h2 = (unsigned8)(v2 & 0xff);
- if (op == 0) // ADD
- h0 = (unsigned32)h1 + (unsigned32)h2;
- else // SUB
- h0 = (unsigned32)h1 - (unsigned32)h2;
- if (h0 & 0x100)
- {
- DSPCR |= DSPCR_OUFLAG4;
- if (sat == 1)
- {
- if (op == 0) // ADD
- h0 = 0xff;
- else // SUB
- h0 = 0;
- }
- }
- result |= ((unsigned32)((unsigned8)h0) << i);
- }
- GPR[rd] = EXTEND32 (result);
-}
-
-// op: 0 = left, 1 = right
-:function:::void:do_qb_shift:int rd, int rt, int shift, int op
-{
- int i, j;
- unsigned8 h0;
- unsigned32 v1 = GPR[rt];
- unsigned32 result = 0;
- for (i = 0; i < 32; i += 8, v1 >>= 8)
- {
- h0 = (unsigned8)(v1 & 0xff);
- if (op == 0) // left
- {
- for (j = 7; j >= 8 - shift; j--)
- {
- if (h0 & (1<<j))
- {
- DSPCR |= DSPCR_OUFLAG6;
- break;
- }
- }
- h0 = h0 << shift;
- }
- else // right
- h0 = h0 >> shift;
- result |= ((unsigned32)h0 << i);
- }
- GPR[rd] = EXTEND32 (result);
-}
-
-// op: 0 = left, 1 = right
-// sat: 0 = no saturation/rounding, 1 = saturation/rounding
-:function:::void:do_ph_shift:int rd, int rt, int shift, int op, int sat
-{
- int i, j;
- signed16 h0;
- unsigned32 v1 = GPR[rt];
- unsigned32 result = 0;
- int setcond;
- for (i = 0; i < 32; i += 16, v1 >>= 16)
- {
- h0 = (signed16)(v1 & 0xffff);
- if (op == 0) // left
- {
- setcond = 0;
- if (h0 & (1<<15))
- {
- for (j = 14; j >= 15 - shift; j--)
- {
- if (!(h0 & (1 << j)))
- {
- DSPCR |= DSPCR_OUFLAG6;
- setcond = 1;
- break;
- }
- }
- }
- else
- {
- for (j = 14; j >= 15 - shift; j--)
- {
- if (h0 & (1 << j))
- {
- DSPCR |= DSPCR_OUFLAG6;
- setcond = 2;
- break;
- }
- }
- }
- h0 = h0 << shift;
- if (sat == 1)
- {
- if (setcond == 2)
- h0 = 0x7fff;
- else if (setcond == 1)
- h0 = 0x8000;
- }
- }
- else // right
- {
- if (sat == 1 && shift != 0 && (h0 & (1 << (shift-1))))
- h0 = (h0 >> shift) + 1;
- else
- h0 = h0 >> shift;
- }
-
- result |= ((unsigned32)((unsigned16)h0) << i);
- }
- GPR[rd] = EXTEND32 (result);
-}
-
-:function:::void:do_w_shll:int rd, int rt, int shift
-{
- int i;
- unsigned32 v1 = GPR[rt];
- unsigned32 result = 0;
- int setcond = 0;
- if (v1 & (1 << 31))
- {
- for (i = 30; i >= 31 - shift; i--)
- {
- if (!(v1 & (1 << i)))
- {
- DSPCR |= DSPCR_OUFLAG6;
- setcond = 1;
- break;
- }
- }
- }
- else
- {
- for (i = 30; i >= 31 - shift; i--)
- {
- if (v1 & (1 << i))
- {
- DSPCR |= DSPCR_OUFLAG6;
- setcond = 2;
- break;
- }
- }
- }
- if (setcond == 2)
- result = 0x7fffffff;
- else if (setcond == 1)
- result = 0x80000000;
- else
- result = v1 << shift;
- GPR[rd] = EXTEND32 (result);
-}
-
-:function:::void:do_w_shra:int rd, int rt, int shift
-{
- unsigned32 result = GPR[rt];
- signed32 h0 = (signed32)result;
- if (shift != 0 && (h0 & (1 << (shift-1))))
- h0 = (h0 >> shift) + 1;
- else
- h0 = h0 >> shift;
- GPR[rd] = EXTEND32 (h0);
-}
-
-011111,5.RS,5.RT,5.RD,01010,010000:SPECIAL3:32::ADDQ.PH
-"addq.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_op (SD_, RD, RS, RT, 0, 0);
-}
-
-011111,5.RS,5.RT,5.RD,01110,010000:SPECIAL3:32::ADDQ_S.PH
-"addq_s.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_op (SD_, RD, RS, RT, 0, 1);
-}
-
-011111,5.RS,5.RT,5.RD,10110,010000:SPECIAL3:32::ADDQ_S.W
-"addq_s.w r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_w_op (SD_, RD, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,5.RD,00000,010000:SPECIAL3:32::ADDU.QB
-"addu.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_op (SD_, RD, RS, RT, 0, 0);
-}
-
-011111,5.RS,5.RT,5.RD,00100,010000:SPECIAL3:32::ADDU_S.QB
-"addu_s.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_op (SD_, RD, RS, RT, 0, 1);
-}
-
-011111,5.RS,5.RT,5.RD,01011,010000:SPECIAL3:32::SUBQ.PH
-"subq.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_op (SD_, RD, RS, RT, 1, 0);
-}
-
-011111,5.RS,5.RT,5.RD,01111,010000:SPECIAL3:32::SUBQ_S.PH
-"subq_s.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_op (SD_, RD, RS, RT, 1, 1);
-}
-
-011111,5.RS,5.RT,5.RD,10111,010000:SPECIAL3:32::SUBQ_S.W
-"subq_s.w r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_w_op (SD_, RD, RS, RT, 1);
-}
-
-011111,5.RS,5.RT,5.RD,00001,010000:SPECIAL3:32::SUBU.QB
-"subu.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_op (SD_, RD, RS, RT, 1, 0);
-}
-
-011111,5.RS,5.RT,5.RD,00101,010000:SPECIAL3:32::SUBU_S.QB
-"subu_s.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_op (SD_, RD, RS, RT, 1, 1);
-}
-
-011111,5.RS,5.RT,5.RD,10000,010000:SPECIAL3:32::ADDSC
-"addsc r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned64 h0;
- h0 = (unsigned64)v1 + (unsigned64)v2;
- if (h0 & 0x100000000LL)
- DSPCR |= DSPCR_CARRY;
- GPR[RD] = EXTEND32 (h0);
-}
-
-011111,5.RS,5.RT,5.RD,10001,010000:SPECIAL3:32::ADDWC
-"addwc r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned64 h0;
- signed32 h1 = (signed32) v1;
- signed32 h2 = (signed32) v2;
- h0 = (signed64)h1 + (signed64)h2
- + (signed64)((DSPCR >> DSPCR_CARRY_SHIFT) & DSPCR_CARRY_MASK);
- if (((h0 & 0x100000000LL) >> 1) != (h0 & 0x80000000))
- DSPCR |= DSPCR_OUFLAG4;
- GPR[RD] = EXTEND32 (h0);
-}
-
-011111,5.RS,5.RT,5.RD,10010,010000:SPECIAL3:32::MODSUB
-"modsub r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 result = 0;
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned32 decr = v2 & 0xff;
- unsigned32 lastindex = (v2 & 0xffff00) >> 8;
- if (v1 == 0)
- result = lastindex;
- else
- result = v1 - decr;
- GPR[RD] = EXTEND32 (result);
-}
-
-011111,5.RS,00000,5.RD,10100,010000:SPECIAL3:32::RADDU.W.QB
-"raddu.w.qb r<RD>, r<RS>"
-*dsp:
-{
- int i;
- unsigned8 h0;
- unsigned32 v1 = GPR[RS];
- unsigned32 result = 0;
- for (i = 0; i < 32; i += 8, v1 >>= 8)
- {
- h0 = (unsigned8)(v1 & 0xff);
- result += (unsigned32)h0;
- }
- GPR[RD] = EXTEND32 (result);
-}
-
-011111,00000,5.RT,5.RD,01001,010010:SPECIAL3:32::ABSQ_S.PH
-"absq_s.ph r<RD>, r<RT>"
-*dsp:
-{
- int i;
- signed16 h0;
- unsigned32 v1 = GPR[RT];
- unsigned32 result = 0;
- for (i = 0; i < 32; i += 16, v1 >>= 16)
- {
- h0 = (signed16)(v1 & 0xffff);
- if (h0 == (signed16)0x8000)
- {
- DSPCR |= DSPCR_OUFLAG4;
- h0 = 0x7fff;
- }
- else if (h0 & 0x8000)
- h0 = -h0;
- result |= ((unsigned32)((unsigned16)h0) << i);
- }
- GPR[RD] = EXTEND32 (result);
-}
-
-011111,00000,5.RT,5.RD,10001,010010:SPECIAL3:32::ABSQ_S.W
-"absq_s.w r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- signed32 h0 = (signed32)v1;
- if (h0 == (signed32)0x80000000)
- {
- DSPCR |= DSPCR_OUFLAG4;
- h0 = 0x7fffffff;
- }
- else if (h0 & 0x80000000)
- h0 = -h0;
- GPR[RD] = EXTEND32 (h0);
-}
-
-011111,5.RS,5.RT,5.RD,01100,010001:SPECIAL3:32::PRECRQ.QB.PH
-"precrq.qb.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned32 tempu = (v1 & 0xff000000) >> 24;
- unsigned32 tempv = (v1 & 0xff00) >> 8;
- unsigned32 tempw = (v2 & 0xff000000) >> 24;
- unsigned32 tempx = (v2 & 0xff00) >> 8;
- GPR[RD] = EXTEND32 ((tempu << 24) | (tempv << 16) | (tempw << 8) | tempx);
-}
-
-011111,5.RS,5.RT,5.RD,10100,010001:SPECIAL3:32::PRECRQ.PH.W
-"precrq.ph.w r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned32 tempu = (v1 & 0xffff0000) >> 16;
- unsigned32 tempv = (v2 & 0xffff0000) >> 16;
- GPR[RD] = EXTEND32 ((tempu << 16) | tempv);
-}
-
-011111,5.RS,5.RT,5.RD,10101,010001:SPECIAL3:32::PRECRQ_RS.PH.W
-"precrq_rs.ph.w r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- signed32 h1 = (signed32)v1;
- signed32 h2 = (signed32)v2;
- signed64 temp1 = (signed64)h1 + (signed64)0x8000;
- signed32 temp2;
- signed64 temp3 = (signed64)h2 + (signed64)0x8000;
- signed32 temp4;
- if (((temp1 & 0x100000000LL) >> 1) != (temp1 & 0x80000000))
- {
- DSPCR |= DSPCR_OUFLAG6;
- temp2 = 0x7fff;
- }
- else
- temp2 = (signed32)((temp1 & 0xffff0000) >> 16);
- if (((temp3 & 0x100000000LL) >> 1) != (temp3 & 0x80000000))
- {
- DSPCR |= DSPCR_OUFLAG6;
- temp4 = 0x7fff;
- }
- else
- temp4 = (signed32)((temp3 & 0xffff0000) >> 16);
- GPR[RD] = EXTEND32 ((temp2 << 16) | temp4);
-}
-
-011111,5.RS,5.RT,5.RD,01111,010001:SPECIAL3:32::PRECRQU_S.QB.PH
-"precrqu_s.qb.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned32 tempu, tempv, tempw, tempx;
- if (v1 & 0x80000000)
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempu = 0;
- }
- else if (!(v1 & 0x80000000) && ((v1 >> 16) > (unsigned32)0x7f80))
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempu = 0xff;
- }
- else
- tempu = (v1 & 0x7f800000) >> 23;
- if (v1 & 0x8000)
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempv = 0;
- }
- else if (!(v1 & 0x8000) && ((v1 & 0xffff) > (unsigned32)0x7f80))
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempv = 0xff;
- }
- else
- tempv = (v1 & 0x7f80) >> 7;
- if (v2 & 0x80000000)
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempw = 0;
- }
- else if (!(v2 & 0x80000000) && ((v2 >> 16) > (unsigned32)0x7f80))
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempw = 0xff;
- }
- else
- tempw = (v2 & 0x7f800000) >> 23;
- if (v2 & 0x8000)
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempx = 0;
- }
- else if (!(v2 & 0x8000) && ((v2 & 0xffff) > (unsigned32)0x7f80))
- {
- DSPCR |= DSPCR_OUFLAG6;
- tempx = 0xff;
- }
- else
- tempx = (v2 & 0x7f80) >> 7;
- GPR[RD] = EXTEND32 ((tempu << 24) | (tempv << 16) | (tempw << 8) | tempx);
-}
-
-011111,00000,5.RT,5.RD,01100,010010:SPECIAL3:32::PRECEQ.W.PHL
-"preceq.w.phl r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 (v1 & 0xffff0000);
-}
-
-011111,00000,5.RT,5.RD,01101,010010:SPECIAL3:32::PRECEQ.W.PHR
-"preceq.w.phr r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xffff) << 16);
-}
-
-011111,00000,5.RT,5.RD,00100,010010:SPECIAL3:32::PRECEQU.PH.QBL
-"precequ.ph.qbl r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff000000) >> 1) | ((v1 & 0xff0000) >> 9);
-}
-
-011111,00000,5.RT,5.RD,00101,010010:SPECIAL3:32::PRECEQU.PH.QBR
-"precequ.ph.qbr r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff00) << 15) | ((v1 & 0xff) << 7);
-}
-
-011111,00000,5.RT,5.RD,00110,010010:SPECIAL3:32::PRECEQU.PH.QBLA
-"precequ.ph.qbla r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff000000) >> 1) | ((v1 & 0xff00) >> 1);
-}
-
-011111,00000,5.RT,5.RD,00111,010010:SPECIAL3:32::PRECEQU.PH.QBRA
-"precequ.ph.qbra r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff0000) << 7) | ((v1 & 0xff) << 7);
-}
-
-011111,00000,5.RT,5.RD,11100,010010:SPECIAL3:32::PRECEU.PH.QBL
-"preceu.ph.qbl r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff000000) >> 8) | ((v1 & 0xff0000) >> 16);
-}
-
-011111,00000,5.RT,5.RD,11101,010010:SPECIAL3:32::PRECEU.PH.QBR
-"preceu.ph.qbr r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff00) << 8) | (v1 & 0xff);
-}
-
-011111,00000,5.RT,5.RD,11110,010010:SPECIAL3:32::PRECEU.PH.QBLA
-"preceu.ph.qbla r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff000000) >> 8) | ((v1 & 0xff00) >> 8);
-}
-
-011111,00000,5.RT,5.RD,11111,010010:SPECIAL3:32::PRECEU.PH.QBRA
-"preceu.ph.qbra r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 & 0xff0000) | (v1 & 0xff));
-}
-
-011111,00,3.SHIFT3,5.RT,5.RD,00000,010011:SPECIAL3:32::SHLL.QB
-"shll.qb r<RD>, r<RT>, <SHIFT3>"
-*dsp:
-{
- do_qb_shift (SD_, RD, RT, SHIFT3, 0);
-}
-
-011111,5.RS,5.RT,5.RD,00010,010011:SPECIAL3:32::SHLLV.QB
-"shllv.qb r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x7;
- do_qb_shift (SD_, RD, RT, shift, 0);
-}
-
-011111,0,4.SHIFT4,5.RT,5.RD,01000,010011:SPECIAL3:32::SHLL.PH
-"shll.ph r<RD>, r<RT>, <SHIFT4>"
-*dsp:
-{
- do_ph_shift (SD_, RD, RT, SHIFT4, 0, 0);
-}
-
-011111,5.RS,5.RT,5.RD,01010,010011:SPECIAL3:32::SHLLV.PH
-"shllv.ph r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0xf;
- do_ph_shift (SD_, RD, RT, shift, 0, 0);
-}
-
-011111,0,4.SHIFT4,5.RT,5.RD,01100,010011:SPECIAL3:32::SHLL_S.PH
-"shll_s.ph r<RD>, r<RT>, <SHIFT4>"
-*dsp:
-{
- do_ph_shift (SD_, RD, RT, SHIFT4, 0, 1);
-}
-
-011111,5.RS,5.RT,5.RD,01110,010011:SPECIAL3:32::SHLLV_S.PH
-"shllv_s.ph r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0xf;
- do_ph_shift (SD_, RD, RT, shift, 0, 1);
-}
-
-011111,5.SHIFT5,5.RT,5.RD,10100,010011:SPECIAL3:32::SHLL_S.W
-"shll_s.w r<RD>, r<RT>, <SHIFT5>"
-*dsp:
-{
- do_w_shll (SD_, RD, RT, SHIFT5);
-}
-
-011111,5.RS,5.RT,5.RD,10110,010011:SPECIAL3:32::SHLLV_S.W
-"shllv_s.w r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x1f;
- do_w_shll (SD_, RD, RT, shift);
-}
-
-011111,00,3.SHIFT3,5.RT,5.RD,00001,010011:SPECIAL3:32::SHRL.QB
-"shrl.qb r<RD>, r<RT>, <SHIFT3>"
-*dsp:
-{
- do_qb_shift (SD_, RD, RT, SHIFT3, 1);
-}
-
-011111,5.RS,5.RT,5.RD,00011,010011:SPECIAL3:32::SHRLV.QB
-"shrlv.qb r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x7;
- do_qb_shift (SD_, RD, RT, shift, 1);
-}
-
-011111,0,4.SHIFT4,5.RT,5.RD,01001,010011:SPECIAL3:32::SHRA.PH
-"shra.ph r<RD>, r<RT>, <SHIFT4>"
-*dsp:
-{
- do_ph_shift (SD_, RD, RT, SHIFT4, 1, 0);
-}
-
-011111,5.RS,5.RT,5.RD,01011,010011:SPECIAL3:32::SHRAV.PH
-"shrav.ph r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0xf;
- do_ph_shift (SD_, RD, RT, shift, 1, 0);
-}
-
-011111,0,4.SHIFT4,5.RT,5.RD,01101,010011:SPECIAL3:32::SHRA_R.PH
-"shra_r.ph r<RD>, r<RT>, <SHIFT4>"
-*dsp:
-{
- do_ph_shift (SD_, RD, RT, SHIFT4, 1, 1);
-}
-
-011111,5.RS,5.RT,5.RD,01111,010011:SPECIAL3:32::SHRAV_R.PH
-"shrav_r.ph r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0xf;
- do_ph_shift (SD_, RD, RT, shift, 1, 1);
-}
-
-011111,5.SHIFT5,5.RT,5.RD,10101,010011:SPECIAL3:32::SHRA_R.W
-"shra_r.w r<RD>, r<RT>, <SHIFT5>"
-*dsp:
-{
- do_w_shra (SD_, RD, RT, SHIFT5);
-}
-
-011111,5.RS,5.RT,5.RD,10111,010011:SPECIAL3:32::SHRAV_R.W
-"shrav_r.w r<RD>, r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x1f;
- do_w_shra (SD_, RD, RT, shift);
-}
-
-// loc: 0 = qhl, 1 = qhr
-:function:::void:do_qb_muleu:int rd, int rs, int rt, int loc
-{
- int i;
- unsigned32 result = 0;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- unsigned16 h1, h2;
- unsigned32 prod;
- if (loc == 0)
- v1 >>= 16;
- for (i = 0; i < 32; i += 16, v1 >>= 8, v2 >>= 16)
- {
- h1 = (unsigned16)(v1 & 0xff);
- h2 = (unsigned16)(v2 & 0xffff);
- prod = (unsigned32)h1 * (unsigned32)h2;
- if (prod > 0xffff)
- {
- DSPCR |= DSPCR_OUFLAG5;
- prod = 0xffff;
- }
- result |= ((unsigned32)prod << i);
- }
- GPR[rd] = EXTEND32 (result);
-}
-
-011111,5.RS,5.RT,5.RD,00110,010000:SPECIAL3:32::MULEU_S.PH.QBL
-"muleu_s.ph.qbl r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_muleu (SD_, RD, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,5.RD,00111,010000:SPECIAL3:32::MULEU_S.PH.QBR
-"muleu_s.ph.qbr r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_muleu (SD_, RD, RS, RT, 1);
-}
-
-011111,5.RS,5.RT,5.RD,11111,010000:SPECIAL3:32::MULQ_RS.PH
-"mulq_rs.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- int i;
- unsigned32 result = 0;
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- signed16 h1, h2;
- signed32 prod;
- for (i = 0; i < 32; i += 16, v1 >>= 16, v2 >>= 16)
- {
- h1 = (signed16)(v1 & 0xffff);
- h2 = (signed16)(v2 & 0xffff);
- if (h1 == (signed16)0x8000 && h2 == (signed16)0x8000)
- {
- DSPCR |= DSPCR_OUFLAG5;
- prod = 0x7fffffff;
- }
- else
- prod = (((signed32)h1 * (signed32)h2) << 1) + (signed32)0x8000;
-
- result |= (((unsigned32)prod >> 16) << i);
- }
- GPR[RD] = EXTEND32 (result);
-}
-
-// loc: 0 = phl, 1 = phr
-:function:::void:do_ph_muleq:int rd, int rs, int rt, int loc
-{
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- signed16 h1, h2;
- signed32 prod;
- if (loc == 0)
- {
- h1 = (signed16)(v1 >> 16);
- h2 = (signed16)(v2 >> 16);
- }
- else
- {
- h1 = (signed16)(v1 & 0xffff);
- h2 = (signed16)(v2 & 0xffff);
- }
- if (h1 == (signed16)0x8000 && h2 == (signed16)0x8000)
- {
- DSPCR |= DSPCR_OUFLAG5;
- prod = 0x7fffffff;
- }
- else
- prod = ((signed32)h1 * (signed32)h2) << 1;
- GPR[rd] = EXTEND32 (prod);
-}
-
-011111,5.RS,5.RT,5.RD,11100,010000:SPECIAL3:32::MULEQ_S.W.PHL
-"muleq_s.w.phl r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_muleq (SD_, RD, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,5.RD,11101,010000:SPECIAL3:32::MULEQ_S.W.PHR
-"muleq_s.w.phr r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_muleq (SD_, RD, RS, RT, 1);
-}
-
-// op: 0 = DPAU 1 = DPSU
-// loc: 0 = qbl, 1 = qbr
-:function:::void:do_qb_dot_product:int ac, int rs, int rt, int op, int loc
-{
- int i;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- unsigned8 h1, h2;
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- unsigned64 prod = (((unsigned64)hi) << 32) + (unsigned64)lo;
- if (loc == 0)
- {
- v1 >>= 16;
- v2 >>= 16;
- }
- for (i = 0; i < 16; i += 8, v1 >>= 8, v2 >>= 8)
- {
- h1 = (unsigned8)(v1 & 0xff);
- h2 = (unsigned8)(v2 & 0xff);
- if (op == 0) // DPAU
- prod += (unsigned64)h1 * (unsigned64)h2;
- else // DPSU
- prod -= (unsigned64)h1 * (unsigned64)h2;
- }
- DSPLO(ac) = EXTEND32 (prod);
- DSPHI(ac) = EXTEND32 (prod >> 32);
-}
-
-011111,5.RS,5.RT,000,2.AC,00011,110000:SPECIAL3:32::DPAU.H.QBL
-"dpau.h.qbl ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_dot_product (SD_, AC, RS, RT, 0, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,00111,110000:SPECIAL3:32::DPAU.H.QBR
-"dpau.h.qbr ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_dot_product (SD_, AC, RS, RT, 0, 1);
-}
-
-011111,5.RS,5.RT,000,2.AC,01011,110000:SPECIAL3:32::DPSU.H.QBL
-"dpsu.h.qbl ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_dot_product (SD_, AC, RS, RT, 1, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,01111,110000:SPECIAL3:32::DPSU.H.QBR
-"dpsu.h.qbr ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_dot_product (SD_, AC, RS, RT, 1, 1);
-}
-
-// op: 0 = DPAQ 1 = DPSQ
-:function:::void:do_ph_dot_product:int ac, int rs, int rt, int op
-{
- int i;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- signed16 h1, h2;
- signed32 result;
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- signed64 prod = (signed64)((((unsigned64)hi) << 32) + (unsigned64)lo);
- for (i = 0; i < 32; i += 16, v1 >>= 16, v2 >>= 16)
- {
- h1 = (signed16)(v1 & 0xffff);
- h2 = (signed16)(v2 & 0xffff);
- if (h1 == (signed16)0x8000 && h2 == (signed16)0x8000)
- {
- DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
- result = (signed32)0x7fffffff;
- }
- else
- result = ((signed32)h1 * (signed32)h2) << 1;
-
- if (op == 0) // DPAQ
- prod += (signed64)result;
- else // DPSQ
- prod -= (signed64)result;
- }
- DSPLO(ac) = EXTEND32 (prod);
- DSPHI(ac) = EXTEND32 (prod >> 32);
-}
-
-011111,5.RS,5.RT,000,2.AC,00100,110000:SPECIAL3:32::DPAQ_S.W.PH
-"dpaq_s.w.ph ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_dot_product (SD_, AC, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,00101,110000:SPECIAL3:32::DPSQ_S.W.PH
-"dpsq_s.w.ph ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_dot_product (SD_, AC, RS, RT, 1);
-}
-
-011111,5.RS,5.RT,000,2.AC,00110,110000:SPECIAL3:32::MULSAQ_S.W.PH
-"mulsaq_s.w.ph ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- int i;
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- signed16 h1, h2;
- signed32 result;
- unsigned32 lo = DSPLO(AC);
- unsigned32 hi = DSPHI(AC);
- signed64 prod = (signed64)((((unsigned64)hi) << 32) + (unsigned64)lo);
- for (i = 0; i < 32; i += 16, v1 >>= 16, v2 >>= 16)
- {
- h1 = (signed16)(v1 & 0xffff);
- h2 = (signed16)(v2 & 0xffff);
- if (h1 == (signed16)0x8000 && h2 == (signed16)0x8000)
- {
- DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + AC));
- result = (signed32) 0x7fffffff;
- }
- else
- result = ((signed32)h1 * (signed32)h2) << 1;
-
- if (i == 0)
- prod -= (signed64) result;
- else
- prod += (signed64) result;
- }
- DSPLO(AC) = EXTEND32 (prod);
- DSPHI(AC) = EXTEND32 (prod >> 32);
-}
-
-// op: 0 = DPAQ 1 = DPSQ
-:function:::void:do_w_dot_product:int ac, int rs, int rt, int op
-{
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- signed32 h1, h2;
- signed64 result;
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- unsigned32 resultlo;
- unsigned32 resulthi;
- unsigned32 carry;
- unsigned64 temp1;
- signed64 temp2;
- h1 = (signed32) v1;
- h2 = (signed32) v2;
- if (h1 == 0x80000000 && h2 == 0x80000000)
- {
- DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
- result = (signed64) 0x7fffffffffffffffLL;
- }
- else
- result = ((signed64)h1 * (signed64)h2) << 1;
- resultlo = (unsigned32)(result);
- resulthi = (unsigned32)(result >> 32);
- if (op ==0) // DPAQ
- {
- temp1 = (unsigned64)lo + (unsigned64)resultlo;
- carry = (unsigned32)((temp1 >> 32) & 1);
- temp2 = (signed64)((signed32)hi) + (signed64)((signed32)resulthi) +
- (signed64)((signed32)carry);
- }
- else // DPSQ
- {
- temp1 = (unsigned64)lo - (unsigned64)resultlo;
- carry = (unsigned32)((temp1 >> 32) & 1);
- temp2 = (signed64)((signed32)hi) - (signed64)((signed32)resulthi) -
- (signed64)((signed32)carry);
- }
- if (((temp2 & 0x100000000LL) >> 1) != (temp2 & 0x80000000LL))
- {
- DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
- if (temp2 & 0x100000000LL)
- {
- DSPLO(ac) = EXTEND32 (0x00000000);
- DSPHI(ac) = EXTEND32 (0x80000000);
- }
- else
- {
- DSPLO(ac) = EXTEND32 (0xffffffff);
- DSPHI(ac) = EXTEND32 (0x7fffffff);
- }
- }
- else
- {
- DSPLO(ac) = EXTEND32 (temp1);
- DSPHI(ac) = EXTEND32 (temp2);
- }
-}
-
-011111,5.RS,5.RT,000,2.AC,01100,110000:SPECIAL3:32::DPAQ_SA.L.W
-"dpaq_sa.l.w ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_w_dot_product (SD_, AC, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,01101,110000:SPECIAL3:32::DPSQ_SA.L.W
-"dpsq_sa.l.w ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_w_dot_product (SD_, AC, RS, RT, 1);
-}
-
-// op: 0 = MAQ_S 1 = MAQ_SA
-// loc: 0 = phl, 1 = phr
-:function:::void:do_ph_maq:int ac, int rs, int rt, int op, int loc
-{
- int i;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- signed16 h1, h2;
- signed32 result;
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- signed64 prod = (signed64)((((unsigned64)hi) << 32) + (unsigned64)lo);
- if (loc == 0)
- {
- h1 = (signed16)(v1 >> 16);
- h2 = (signed16)(v2 >> 16);
- }
- else
- {
- h1 = (signed16)(v1 & 0xffff);
- h2 = (signed16)(v2 & 0xffff);
- }
- if (h1 == (signed16)0x8000 && h2 == (signed16)0x8000)
- {
- DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
- result = (signed32)0x7fffffff;
- }
- else
- result = ((signed32)h1 * (signed32)h2) << 1;
- prod += (signed64)result;
- if (op == 1) // MAQ_SA
- {
- if (prod & 0x8000000000000000LL)
- {
- for (i = 62; i >= 31; i--)
- {
- if (!(prod & ((signed64)1 << i)))
- {
- DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
- prod = 0xffffffff80000000LL;
- break;
- }
- }
- }
- else
- {
- for (i = 62; i >= 31; i--)
- {
- if (prod & ((signed64)1 << i))
- {
- DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
- prod = 0x7fffffff;
- break;
- }
- }
- }
- }
- DSPLO(ac) = EXTEND32 (prod);
- DSPHI(ac) = EXTEND32 (prod >> 32);
-}
-
-011111,5.RS,5.RT,000,2.AC,10100,110000:SPECIAL3:32::MAQ_S.W.PHL
-"maq_s.w.phl ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_maq (SD_, AC, RS, RT, 0, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,10110,110000:SPECIAL3:32::MAQ_S.W.PHR
-"maq_s.w.phr ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_maq (SD_, AC, RS, RT, 0, 1);
-}
-
-011111,5.RS,5.RT,000,2.AC,10000,110000:SPECIAL3:32::MAQ_SA.W.PHL
-"maq_sa.w.phl ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_maq (SD_, AC, RS, RT, 1, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,10010,110000:SPECIAL3:32::MAQ_SA.W.PHR
-"maq_sa.w.phr ac<AC>, r<RS>, r<RT>"
-*dsp:
-{
- do_ph_maq (SD_, AC, RS, RT, 1, 1);
-}
-
-011111,00000,5.RT,5.RD,11011,010010:SPECIAL3:32::BITREV
-"bitrev r<RD>, r<RT>"
-*dsp:
-{
- int i;
- unsigned32 v1 = GPR[RT];
- unsigned32 h1 = 0;
- for (i = 0; i < 16; i++)
- {
- if (v1 & (1 << i))
- h1 |= (1 << (15 - i));
- }
- GPR[RD] = EXTEND32 (h1);
-}
-
-011111,5.RS,5.RT,00000,00000,001100:SPECIAL3:32::INSV
-"insv r<RT>, r<RS>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned32 pos = (DSPCR >> DSPCR_POS_SHIFT) & DSPCR_POS_MASK;
- unsigned32 size = (DSPCR >> DSPCR_SCOUNT_SHIFT) & DSPCR_SCOUNT_MASK;
- unsigned32 mask1, mask2, mask3, result;
- if (size < 32)
- mask1 = (1 << size) - 1;
- else
- mask1 = 0xffffffff;
- mask2 = (1 << pos) - 1;
- if (pos + size < 32)
- mask3 = ~((1 << (pos + size)) - 1);
- else
- mask3 = 0;
- result = (v2 & mask3) | ((v1 & mask1) << pos) | (v2 & mask2);
- GPR[RT] = EXTEND32 (result);
-}
-
-011111,00,8.IMM8,5.RD,00010,010010:SPECIAL3:32::REPL.QB
-"repl.qb r<RD>, <IMM8>"
-*dsp:
-{
- GPR[RD] = EXTEND32 ((IMM8 << 24) | (IMM8 << 16) | (IMM8 << 8) | IMM8);
-}
-
-011111,00000,5.RT,5.RD,00011,010010:SPECIAL3:32::REPLV.QB
-"replv.qb r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- v1 = v1 & 0xff;
- GPR[RD] = EXTEND32 ((v1 << 24) | (v1 << 16) | (v1 << 8) | v1);
-}
-
-011111,10.IMM10,5.RD,01010,010010:SPECIAL3:32::REPL.PH
-"repl.ph r<RD>, <IMM10>"
-*dsp:
-{
- signed32 v1 = IMM10;
- if (v1 & 0x200)
- v1 |= 0xfffffc00;
- GPR[RD] = EXTEND32 ((v1 << 16) | (v1 & 0xffff));
-}
-
-011111,00000,5.RT,5.RD,01011,010010:SPECIAL3:32::REPLV.PH
-"replv.ph r<RD>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RT];
- v1 = v1 & 0xffff;
- GPR[RD] = EXTEND32 ((v1 << 16) | v1);
-}
-
-// op: 0 = EQ, 1 = LT, 2 = LE
-:function:::void:do_qb_cmpu:int rs, int rt, int op
-{
- int i, j;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- unsigned8 h1, h2;
- unsigned32 mask;
- for (i = 0, j = 0; i < 32; i += 8, j++, v1 >>= 8, v2 >>= 8)
- {
- h1 = (unsigned8)(v1 & 0xff);
- h2 = (unsigned8)(v2 & 0xff);
- mask = ~(1 << (DSPCR_CCOND_SHIFT + j));
- DSPCR &= mask;
- if (op == 0) // EQ
- DSPCR |= ((h1 == h2) << (DSPCR_CCOND_SHIFT + j));
- else if (op == 1) // LT
- DSPCR |= ((h1 < h2) << (DSPCR_CCOND_SHIFT + j));
- else // LE
- DSPCR |= ((h1 <= h2) << (DSPCR_CCOND_SHIFT + j));
- }
-}
-
-011111,5.RS,5.RT,00000,00000,010001:SPECIAL3:32::CMPU.EQ.QB
-"cmpu.eq.qb r<RS>, r<RT>"
-*dsp:
-{
- do_qb_cmpu (SD_, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,00000,00001,010001:SPECIAL3:32::CMPU.LT.QB
-"cmpu.lt.qb r<RS>, r<RT>"
-*dsp:
-{
- do_qb_cmpu (SD_, RS, RT, 1);
-}
-
-011111,5.RS,5.RT,00000,00010,010001:SPECIAL3:32::CMPU.LE.QB
-"cmpu.le.qb r<RS>, r<RT>"
-*dsp:
-{
- do_qb_cmpu (SD_, RS, RT, 2);
-}
-
-// op: 0 = EQ, 1 = LT, 2 = LE
-:function:::void:do_qb_cmpgu:int rd, int rs, int rt, int op
-{
- int i, j;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- unsigned8 h1, h2;
- unsigned32 result = 0;
- for (i = 0, j = 0; i < 32; i += 8, j++, v1 >>= 8, v2 >>= 8)
- {
- h1 = (unsigned8)(v1 & 0xff);
- h2 = (unsigned8)(v2 & 0xff);
- if (op == 0) // EQ
- result |= ((h1 == h2) << j);
- else if (op == 1) // LT
- result |= ((h1 < h2) << j);
- else // LE
- result |= ((h1 <= h2) << j);
- }
- GPR[rd] = EXTEND32 (result);
-}
-
-011111,5.RS,5.RT,5.RD,00100,010001:SPECIAL3:32::CMPGU.EQ.QB
-"cmpgu.eq.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_cmpgu (SD_, RD, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,5.RD,00101,010001:SPECIAL3:32::CMPGU.LT.QB
-"cmpgu.lt.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_cmpgu (SD_, RD, RS, RT, 1);
-}
-
-011111,5.RS,5.RT,5.RD,00110,010001:SPECIAL3:32::CMPGU.LE.QB
-"cmpgu.le.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- do_qb_cmpgu (SD_, RD, RS, RT, 2);
-}
-
-// op: 0 = EQ, 1 = LT, 2 = LE
-:function:::void:do_ph_cmpu:int rs, int rt, int op
-{
- int i, j;
- unsigned32 v1 = GPR[rs];
- unsigned32 v2 = GPR[rt];
- signed16 h1, h2;
- unsigned32 mask;
- for (i = 0, j = 0; i < 32; i += 16, j++, v1 >>= 16, v2 >>= 16)
- {
- h1 = (signed16)(v1 & 0xffff);
- h2 = (signed16)(v2 & 0xffff);
- mask = ~(1 << (DSPCR_CCOND_SHIFT + j));
- DSPCR &= mask;
- if (op == 0) // EQ
- DSPCR |= ((h1 == h2) << (DSPCR_CCOND_SHIFT + j));
- else if (op == 1) // LT
- DSPCR |= ((h1 < h2) << (DSPCR_CCOND_SHIFT + j));
- else // LE
- DSPCR |= ((h1 <= h2) << (DSPCR_CCOND_SHIFT + j));
- }
-}
-
-011111,5.RS,5.RT,00000,01000,010001:SPECIAL3:32::CMP.EQ.PH
-"cmp.eq.ph r<RS>, r<RT>"
-*dsp:
-{
- do_ph_cmpu (SD_, RS, RT, 0);
-}
-
-011111,5.RS,5.RT,00000,01001,010001:SPECIAL3:32::CMP.LT.PH
-"cmp.lt.ph r<RS>, r<RT>"
-*dsp:
-{
- do_ph_cmpu (SD_, RS, RT, 1);
-}
-
-011111,5.RS,5.RT,00000,01010,010001:SPECIAL3:32::CMP.LE.PH
-"cmp.le.ph r<RS>, r<RT>"
-*dsp:
-{
- do_ph_cmpu (SD_, RS, RT, 2);
-}
-
-011111,5.RS,5.RT,5.RD,00011,010001:SPECIAL3:32::PICK.QB
-"pick.qb r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- int i, j;
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned8 h1, h2;
- unsigned32 result = 0;
- for (i = 0, j = 0; i < 32; i += 8, j++, v1 >>= 8, v2 >>= 8)
- {
- h1 = (unsigned8)(v1 & 0xff);
- h2 = (unsigned8)(v2 & 0xff);
- if (DSPCR & (1 << (DSPCR_CCOND_SHIFT + j)))
- result |= (unsigned32)(h1 << i);
- else
- result |= (unsigned32)(h2 << i);
- }
- GPR[RD] = EXTEND32 (result);
-}
-
-011111,5.RS,5.RT,5.RD,01011,010001:SPECIAL3:32::PICK.PH
-"pick.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- int i, j;
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- unsigned16 h1, h2;
- unsigned32 result = 0;
- for (i = 0, j = 0; i < 32; i += 16, j++, v1 >>= 16, v2 >>= 16)
- {
- h1 = (unsigned16)(v1 & 0xffff);
- h2 = (unsigned16)(v2 & 0xffff);
- if (DSPCR & (1 << (DSPCR_CCOND_SHIFT + j)))
- result |= (unsigned32)(h1 << i);
- else
- result |= (unsigned32)(h2 << i);
- }
- GPR[RD] = EXTEND32 (result);
-}
-
-011111,5.RS,5.RT,5.RD,01110,010001:SPECIAL3:32::PACKRL.PH
-"packrl.ph r<RD>, r<RS>, r<RT>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- unsigned32 v2 = GPR[RT];
- GPR[RD] = EXTEND32 ((v1 << 16) + (v2 >> 16));
-}
-
-// op: 0 = EXTR, 1 = EXTR_R, 2 = EXTR_RS
-:function:::void:do_w_extr:int rt, int ac, int shift, int op
-{
- int i;
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- unsigned64 prod = (((unsigned64)hi) << 32) + (unsigned64)lo;
- signed64 result = (signed64)prod;
- int setcond = 0;
- if (!(prod & 0x8000000000000000LL))
- {
- for (i = 62; i >= (shift + 31); i--)
- {
- if (prod & ((unsigned64)1 << i))
- {
- DSPCR |= DSPCR_OUFLAG7;
- setcond = 1;
- break;
- }
- }
- if (((prod >> (shift - 1)) & 0xffffffffLL) == 0xffffffffLL)
- {
- DSPCR |= DSPCR_OUFLAG7;
- setcond = 1;
- }
- }
- else
- {
- for (i = 62; i >= (shift + 31); i--)
- {
- if (!(prod & ((unsigned64)1 << i)))
- {
- DSPCR |= DSPCR_OUFLAG7;
- setcond = 2;
- break;
- }
- }
- }
- if (op == 0) // EXTR
- result = result >> shift;
- else if (op == 1) // EXTR_R
- {
- if (shift != 0)
- result = ((result >> (shift - 1)) + 1) >> 1;
- else
- result = result >> shift;
- }
- else // EXTR_RS
- {
- if (setcond == 1)
- result = 0x7fffffff;
- else if (setcond == 2)
- result = 0x80000000;
- else
- {
- if (shift != 0)
- result = ((result >> (shift - 1)) + 1) >> 1;
- else
- result = result >> shift;
- }
- }
- GPR[rt] = EXTEND32 (result);
-}
-
-011111,5.SHIFT,5.RT,000,2.AC,00000,111000:SPECIAL3:32::EXTR.W
-"extr.w r<RT>, ac<AC>, <SHIFT>"
-*dsp:
-{
- do_w_extr (SD_, RT, AC, SHIFT, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,00001,111000:SPECIAL3:32::EXTRV.W
-"extrv.w r<RT>, ac<AC>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x1f;
- do_w_extr (SD_, RT, AC, shift, 0);
-}
-
-011111,5.SHIFT,5.RT,000,2.AC,00100,111000:SPECIAL3:32::EXTR_R.W
-"extr_r.w r<RT>, ac<AC>, <SHIFT>"
-*dsp:
-{
- do_w_extr (SD_, RT, AC, SHIFT, 1);
-}
-
-011111,5.RS,5.RT,000,2.AC,00101,111000:SPECIAL3:32::EXTRV_R.W
-"extrv_r.w r<RT>, ac<AC>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x1f;
- do_w_extr (SD_, RT, AC, shift, 1);
-}
-
-011111,5.SHIFT,5.RT,000,2.AC,00110,111000:SPECIAL3:32::EXTR_RS.W
-"extr_rs.w r<RT>, ac<AC>, <SHIFT>"
-*dsp:
-{
- do_w_extr (SD_, RT, AC, SHIFT, 2);
-}
-
-011111,5.RS,5.RT,000,2.AC,00111,111000:SPECIAL3:32::EXTRV_RS.W
-"extrv_rs.w r<RT>, ac<AC>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x1f;
- do_w_extr (SD_, RT, AC, shift, 2);
-}
-
-:function:::void:do_h_extr:int rt, int ac, int shift
-{
- int i;
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- unsigned64 prod = (((unsigned64)hi) << 32) + (unsigned64)lo;
- signed64 result = (signed64)prod;
- signed64 value = 0xffffffffffff8000LL;
- result >>= shift;
- if (result > 0x7fff)
- {
- result = 0x7fff;
- DSPCR |= DSPCR_OUFLAG7;
- }
- else if (result < value)
- {
- result = value;
- DSPCR |= DSPCR_OUFLAG7;
- }
- GPR[rt] = EXTEND32 (result);
-}
-
-011111,5.SHIFT,5.RT,000,2.AC,01110,111000:SPECIAL3:32::EXTR_S.H
-"extr_s.h r<RT>, ac<AC>, <SHIFT>"
-*dsp:
-{
- do_h_extr (SD_, RT, AC, SHIFT);
-}
-
-011111,5.RS,5.RT,000,2.AC,01111,111000:SPECIAL3:32::EXTRV_S.H
-"extrv_s.h r<RT>, ac<AC>, r<RS>"
-*dsp:
-{
- unsigned32 shift = GPR[RS] & 0x1f;
- do_h_extr (SD_, RT, AC, shift);
-}
-
-// op: 0 = EXTP, 1 = EXTPDP
-:function:::void:do_extp:int rt, int ac, int size, int op
-{
- signed32 pos = (DSPCR >> DSPCR_POS_SHIFT) & DSPCR_POS_MASK;
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- unsigned64 prod = (((unsigned64)hi) << 32) + (unsigned64)lo;
- unsigned64 result = 0;
- if (pos - (size + 1) >= -1)
- {
- prod >>= (pos - size);
- result = prod & (((unsigned64)1 << (size + 1)) - 1);
- DSPCR &= (~DSPCR_EFI_SMASK);
- if (op == 1) // EXTPDP
- {
- if (pos - (size + 1) >= 0)
- {
- DSPCR &= (~DSPCR_POS_SMASK);
- DSPCR |= ((pos - (size + 1)) & DSPCR_POS_MASK) << DSPCR_POS_SHIFT;
- }
- else if (pos - (size + 1) == -1)
- {
- DSPCR |= DSPCR_POS_SMASK;
- }
- }
- }
- else
- {
- DSPCR |= DSPCR_EFI;
- Unpredictable ();
- }
- GPR[rt] = EXTEND32 (result);
-}
-
-011111,5.SIZE,5.RT,000,2.AC,00010,111000:SPECIAL3:32::EXTP
-"extp r<RT>, ac<AC>, <SIZE>"
-*dsp:
-{
- do_extp (SD_, RT, AC, SIZE, 0);
-}
-
-011111,5.RS,5.RT,000,2.AC,00011,111000:SPECIAL3:32::EXTPV
-"extpv r<RT>, ac<AC>, r<RS>"
-*dsp:
-{
- unsigned32 size = GPR[RS] & 0x1f;
- do_extp (SD_, RT, AC, size, 0);
-}
-
-011111,5.SIZE,5.RT,000,2.AC,01010,111000:SPECIAL3:32::EXTPDP
-"extpdp r<RT>, ac<AC>, <SIZE>"
-*dsp:
-{
- do_extp (SD_, RT, AC, SIZE, 1);
-}
-
-011111,5.RS,5.RT,000,2.AC,01011,111000:SPECIAL3:32::EXTPDPV
-"extpdpv r<RT>, ac<AC>, r<RS>"
-*dsp:
-{
- unsigned32 size = GPR[RS] & 0x1f;
- do_extp (SD_, RT, AC, size, 1);
-}
-
-:function:::void:do_shilo:int ac, int shift
-{
- unsigned32 lo = DSPLO(ac);
- unsigned32 hi = DSPHI(ac);
- unsigned64 prod = (((unsigned64)hi) << 32) + (unsigned64)lo;
- if (shift > 31)
- shift = shift - 64;
- if (shift >= 0)
- prod >>= shift;
- else
- prod <<= (-shift);
- DSPLO(ac) = EXTEND32 (prod);
- DSPHI(ac) = EXTEND32 (prod >> 32);
-}
-
-011111,6.SHIFT6,0000,000,2.AC,11010,111000:SPECIAL3:32::SHILO
-"shilo ac<AC>, <SHIFT6>"
-*dsp:
-{
- do_shilo (SD_, AC, SHIFT6);
-}
-
-011111,5.RS,00000,000,2.AC,11011,111000:SPECIAL3:32::SHILOV
-"shilov ac<AC>, r<RS>"
-*dsp:
-{
- signed32 shift = GPR[RS] & 0x3f;
- do_shilo (SD_, AC, shift);
-}
-
-011111,5.RS,00000,000,2.AC,11111,111000:SPECIAL3:32::MTHLIP
-"mthlip r<RS>, ac<AC>"
-*dsp:
-{
- unsigned32 pos = (DSPCR >> DSPCR_POS_SHIFT) & DSPCR_POS_MASK;
- DSPHI(AC) = DSPLO(AC);
- DSPLO(AC) = GPR[RS];
- if (pos >= 32)
- Unpredictable ();
- else
- pos += 32;
- DSPCR &= (~DSPCR_POS_SMASK);
- DSPCR |= (pos & DSPCR_POS_MASK) << DSPCR_POS_SHIFT;
-}
-
-000000,000,2.AC,00000,5.RD,00000,010000:SPECIAL:32::MFHIdsp
-"mfhi r<RD>":AC == 0
-"mfhi r<RD>, ac<AC>"
-*mips32:
-*mips32r2:
-*mips64:
-*mips64r2:
-*dsp:
-{
- if (AC == 0)
- do_mfhi (SD_, RD);
- else
- GPR[RD] = DSPHI(AC);
-}
-
-000000,000,2.AC,00000,5.RD,00000,010010:SPECIAL:32::MFLOdsp
-"mflo r<RD>":AC == 0
-"mflo r<RD>, ac<AC>"
-*mips32:
-*mips32r2:
-*mips64:
-*mips64r2:
-*dsp:
-{
- if (AC == 0)
- do_mflo (SD_, RD);
- else
- GPR[RD] = DSPLO(AC);
-}
-
-000000,5.RS,00000,000,2.AC,00000,010001:SPECIAL:32::MTHIdsp
-"mthi r<RS>":AC == 0
-"mthi r<RS>, ac<AC>"
-*mips32:
-*mips32r2:
-*mips64:
-*mips64r2:
-*dsp:
-{
- if (AC == 0)
- check_mt_hilo (SD_, HIHISTORY);
- DSPHI(AC) = GPR[RS];
-}
-
-000000,5.RS,00000,000,2.AC,00000,010011:SPECIAL:32::MTLOdsp
-"mtlo r<RS>":AC == 0
-"mtlo r<RS>, ac<AC>"
-*mips32:
-*mips32r2:
-*mips64:
-*mips64r2:
-*dsp:
-{
- if (AC == 0)
- check_mt_hilo (SD_, LOHISTORY);
- DSPLO(AC) = GPR[RS];
-}
-
-011111,5.RS,10.MASK10,10011,111000:SPECIAL3:32::WRDSP
-"wrdsp r<RS>":MASK10 == 1111111111
-"wrdsp r<RS>, <MASK10>"
-*dsp:
-{
- unsigned32 v1 = GPR[RS];
- if (MASK10 & 0x1)
- {
- DSPCR &= (~DSPCR_POS_SMASK);
- DSPCR |= (v1 & DSPCR_POS_SMASK);
- }
- if (MASK10 & 0x2)
- {
- DSPCR &= (~DSPCR_SCOUNT_SMASK);
- DSPCR |= (v1 & DSPCR_SCOUNT_SMASK);
- }
- if (MASK10 & 0x4)
- {
- DSPCR &= (~DSPCR_CARRY_SMASK);
- DSPCR |= (v1 & DSPCR_CARRY_SMASK);
- }
- if (MASK10 & 0x8)
- {
- DSPCR &= (~DSPCR_OUFLAG_SMASK);
- DSPCR |= (v1 & DSPCR_OUFLAG_SMASK);
- }
- if (MASK10 & 0x10)
- {
- DSPCR &= (~DSPCR_CCOND_SMASK);
- DSPCR |= (v1 & DSPCR_CCOND_SMASK);
- }
- if (MASK10 & 0x20)
- {
- DSPCR &= (~DSPCR_EFI_SMASK);
- DSPCR |= (v1 & DSPCR_EFI_SMASK);
- }
-}
-
-011111,10.MASK10,5.RD,10010,111000:SPECIAL3:32::RDDSP
-"rddsp r<RD>":MASK10 == 1111111111
-"rddsp r<RD>, <MASK10>"
-*dsp:
-{
- unsigned32 result = 0;
- if (MASK10 & 0x1)
- {
- result &= (~DSPCR_POS_SMASK);
- result |= (DSPCR & DSPCR_POS_SMASK);
- }
- if (MASK10 & 0x2)
- {
- result &= (~DSPCR_SCOUNT_SMASK);
- result |= (DSPCR & DSPCR_SCOUNT_SMASK);
- }
- if (MASK10 & 0x4)
- {
- result &= (~DSPCR_CARRY_SMASK);
- result |= (DSPCR & DSPCR_CARRY_SMASK);
- }
- if (MASK10 & 0x8)
- {
- result &= (~DSPCR_OUFLAG_SMASK);
- result |= (DSPCR & DSPCR_OUFLAG_SMASK);
- }
- if (MASK10 & 0x10)
- {
- result &= (~DSPCR_CCOND_SMASK);
- result |= (DSPCR & DSPCR_CCOND_SMASK);
- }
- if (MASK10 & 0x20)
- {
- result &= (~DSPCR_EFI_SMASK);
- result |= (DSPCR & DSPCR_EFI_SMASK);
- }
- GPR[RD] = EXTEND32 (result);
-}
-
-011111,5.BASE,5.INDEX,5.RD,00110,001010:SPECIAL3:32::LBUX
-"lbux r<RD>, r<INDEX>(r<BASE>)"
-*dsp:
-{
- GPR[RD] = do_load (SD_, AccessLength_BYTE, GPR[BASE], GPR[INDEX]);
-}
-
-011111,5.BASE,5.INDEX,5.RD,00100,001010:SPECIAL3:32::LHX
-"lhx r<RD>, r<INDEX>(r<BASE>)"
-*dsp:
-{
- GPR[RD] = EXTEND16 (do_load (SD_, AccessLength_HALFWORD, GPR[BASE], GPR[INDEX]));
-}
-
-011111,5.BASE,5.INDEX,5.RD,00000,001010:SPECIAL3:32::LWX
-"lwx r<RD>, r<INDEX>(r<BASE>)"
-*dsp:
-{
- GPR[RD] = EXTEND32 (do_load (SD_, AccessLength_WORD, GPR[BASE], GPR[INDEX]));
-}
-
-000001,00000,11100,16.OFFSET:REGIMM:32::BPOSGE32
-"bposge32 <OFFSET>"
-*dsp:
-{
- unsigned32 pos = (DSPCR >> DSPCR_POS_SHIFT) & DSPCR_POS_MASK;
- address_word offset = EXTEND16 (OFFSET) << 2;
- if (pos >= 32)
- {
- DELAY_SLOT (NIA + offset);
- }
-}
generated by cgit v1.1 at 2025-03-19 06:26:59 +0000