737 lines
17 KiB
C
737 lines
17 KiB
C
// -*- C -*-
|
|
|
|
// Simulator definition for the MIPS DSP REV 2 ASE.
|
|
// Copyright (C) 2007, 2010, 2012 Free Software Foundation, Inc.
|
|
// Contributed by MIPS Technologies, Inc.
|
|
// Written by Chao-ying Fu (fu@mips.com).
|
|
//
|
|
// 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
// op: 0 = ADD, 1 = SUB
|
|
// sat: 0 = no saturation, 1 = saturation
|
|
:function:::void:do_u_ph_op:int rd, int rs, int rt, int op, int sat
|
|
{
|
|
int i;
|
|
unsigned32 h0;
|
|
unsigned16 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 = (unsigned16)(v1 & 0xffff);
|
|
h2 = (unsigned16)(v2 & 0xffff);
|
|
if (op == 0) // ADD
|
|
h0 = (unsigned32)h1 + (unsigned32)h2;
|
|
else // SUB
|
|
h0 = (unsigned32)h1 - (unsigned32)h2;
|
|
if (op == 0 && (h0 > (unsigned32)0x0000ffff)) // ADD SAT
|
|
{
|
|
DSPCR |= DSPCR_OUFLAG4;
|
|
if (sat == 1)
|
|
h0 = 0xffff;
|
|
}
|
|
else if (op == 1 && h1 < h2) // SUB SAT
|
|
{
|
|
DSPCR |= DSPCR_OUFLAG4;
|
|
if (sat == 1)
|
|
h0 = 0x0;
|
|
}
|
|
result |= ((unsigned32)((unsigned16)h0) << i);
|
|
}
|
|
GPR[rd] = EXTEND32 (result);
|
|
}
|
|
|
|
// op: 0 = ADD, 1 = SUB
|
|
// round: 0 = no rounding, 1 = rounding
|
|
:function:::void:do_uh_qb_op:int rd, int rs, int rt, int op, int round
|
|
{
|
|
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 (round == 1)
|
|
h0 = (h0 + 1) >> 1;
|
|
else
|
|
h0 = h0 >> 1;
|
|
result |= ((unsigned32)((unsigned8)h0) << i);
|
|
}
|
|
GPR[rd] = EXTEND32 (result);
|
|
}
|
|
|
|
// op: 0 = EQ, 1 = LT, 2 = LE
|
|
:function:::void:do_qb_cmpgdu: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;
|
|
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
|
|
{
|
|
result |= ((h1 == h2) << j);
|
|
DSPCR |= ((h1 == h2) << (DSPCR_CCOND_SHIFT + j));
|
|
}
|
|
else if (op == 1) // LT
|
|
{
|
|
result |= ((h1 < h2) << j);
|
|
DSPCR |= ((h1 < h2) << (DSPCR_CCOND_SHIFT + j));
|
|
}
|
|
else // LE
|
|
{
|
|
result |= ((h1 <= h2) << j);
|
|
DSPCR |= ((h1 <= h2) << (DSPCR_CCOND_SHIFT + j));
|
|
}
|
|
}
|
|
GPR[rd] = EXTEND32 (result);
|
|
}
|
|
|
|
// op: 0 = DPA 1 = DPS
|
|
:function:::void:do_w_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);
|
|
result = (signed32)h1 * (signed32)h2;
|
|
if (op == 0) // DPA
|
|
prod += (signed64)result;
|
|
else // DPS
|
|
prod -= (signed64)result;
|
|
}
|
|
DSPLO(ac) = EXTEND32 (prod);
|
|
DSPHI(ac) = EXTEND32 (prod >> 32);
|
|
}
|
|
|
|
// round: 0 = no rounding, 1 = rounding
|
|
:function:::void:do_w_mulq:int rd, int rs, int rt, int round
|
|
{
|
|
unsigned32 v1 = GPR[rs];
|
|
unsigned32 v2 = GPR[rt];
|
|
signed32 w1, w2;
|
|
signed64 prod;
|
|
unsigned32 result;
|
|
w1 = (signed32) v1;
|
|
w2 = (signed32 )v2;
|
|
if (w1 == (signed32) 0x80000000 && w2 == (signed32) 0x80000000)
|
|
{
|
|
DSPCR |= DSPCR_OUFLAG5;
|
|
prod = 0x7fffffff;
|
|
}
|
|
else
|
|
{
|
|
prod = ((signed64) w1 * (signed64) w2) << 1;
|
|
if (round == 1)
|
|
prod += 0x0000000080000000LL;
|
|
prod = prod >> 32;
|
|
}
|
|
result = (unsigned32) prod;
|
|
GPR[rd] = EXTEND32 (result);
|
|
}
|
|
|
|
// round: 0 = no rounding, 1 = rounding
|
|
:function:::void:do_precr_sra:int rt, int rs, int sa, int round
|
|
{
|
|
unsigned32 v1 = GPR[rt];
|
|
unsigned32 v2 = GPR[rs];
|
|
signed32 w1 = (signed32) v1;
|
|
signed32 w2 = (signed32) v2;
|
|
signed32 result;
|
|
if (sa != 0)
|
|
{
|
|
if (round == 1 && (w1 & (1 << (sa - 1))))
|
|
w1 = (w1 >> sa) + 1;
|
|
else
|
|
w1 = w1 >> sa;
|
|
|
|
if (round == 1 && (w2 & (1 << (sa - 1))))
|
|
w2 = (w2 >> sa) + 1;
|
|
else
|
|
w2 = w2 >> sa;
|
|
}
|
|
result = (w1 << 16) | (w2 & 0xffff);
|
|
GPR[rt] = EXTEND32 (result);
|
|
}
|
|
|
|
// round: 0 = no rounding, 1 = rounding
|
|
:function:::void:do_qb_shra:int rd, int rt, int shift, int round
|
|
{
|
|
int i, j;
|
|
signed8 q0;
|
|
unsigned32 v1 = GPR[rt];
|
|
unsigned32 result = 0;
|
|
for (i = 0; i < 32; i += 8, v1 >>= 8)
|
|
{
|
|
q0 = (signed8)(v1 & 0xff);
|
|
if (shift != 0)
|
|
{
|
|
if (round == 1 && (q0 & (1 << (shift - 1))))
|
|
q0 = (q0 >> shift) + 1;
|
|
else
|
|
q0 = q0 >> shift;
|
|
}
|
|
result |= ((unsigned32)((unsigned8)q0) << i);
|
|
}
|
|
GPR[rd] = EXTEND32 (result);
|
|
}
|
|
|
|
:function:::void:do_ph_shrl:int rd, int rt, int shift
|
|
{
|
|
int i, j;
|
|
unsigned16 h0;
|
|
unsigned32 v1 = GPR[rt];
|
|
unsigned32 result = 0;
|
|
for (i = 0; i < 32; i += 16, v1 >>= 16)
|
|
{
|
|
h0 = (unsigned16)(v1 & 0xffff);
|
|
h0 = h0 >> shift;
|
|
result |= ((unsigned32)h0 << i);
|
|
}
|
|
GPR[rd] = EXTEND32 (result);
|
|
}
|
|
|
|
// op: 0 = ADD, 1 = SUB
|
|
// round: 0 = no rounding, 1 = rounding
|
|
:function:::void:do_qh_ph_op:int rd, int rs, int rt, int op, int round
|
|
{
|
|
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 (round == 1)
|
|
h0 = (h0 + 1) >> 1;
|
|
else
|
|
h0 = h0 >> 1;
|
|
result |= ((unsigned32)((unsigned16)h0) << i);
|
|
}
|
|
GPR[rd] = EXTEND32 (result);
|
|
}
|
|
|
|
// op: 0 = ADD, 1 = SUB
|
|
// round: 0 = no rounding, 1 = rounding
|
|
:function:::void:do_qh_w_op:int rd, int rs, int rt, int op, int round
|
|
{
|
|
int i;
|
|
signed64 v0;
|
|
signed32 v1 = (signed32)GPR[rs];
|
|
signed32 v2 = (signed32)GPR[rt];
|
|
if (op == 0) // ADD
|
|
v0 = (signed64)v1 + (signed64)v2;
|
|
else // SUB
|
|
v0 = (signed64)v1 - (signed64)v2;
|
|
if (round == 1)
|
|
v0 = (v0 + 1) >> 1;
|
|
else
|
|
v0 = v0 >> 1;
|
|
GPR[rd] = EXTEND32 (v0);
|
|
}
|
|
|
|
// op: 0 = DPAX, 1 = DPSX
|
|
:function:::void:do_x_w_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 & 0xffff0000) >> 16);
|
|
result = (signed32)h1 * (signed32)h2;
|
|
if (op == 0) // DPAX
|
|
prod += (signed64)result;
|
|
else // DPSX
|
|
prod -= (signed64)result;
|
|
}
|
|
DSPLO(ac) = EXTEND32 (prod);
|
|
DSPHI(ac) = EXTEND32 (prod >> 32);
|
|
}
|
|
|
|
// op: 0 = DPAQX, 1 = DPSQX
|
|
// sat: 0 = no saturation, 1 = saturation of the accumulator
|
|
:function:::void:do_qx_w_ph_dot_product:int ac, int rs, int rt, int op, int sat
|
|
{
|
|
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);
|
|
signed64 max, min;
|
|
for (i = 0; i < 32; i += 16, v1 >>= 16, v2 <<= 16)
|
|
{
|
|
h1 = (signed16)(v1 & 0xffff);
|
|
h2 = (signed16)((v2 & 0xffff0000) >> 16);
|
|
if (h1 == (signed16)0x8000 && h2 == (signed16)0x8000)
|
|
{
|
|
DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
|
|
result = 0x7fffffff;
|
|
}
|
|
else
|
|
result = ((signed32)h1 * (signed32)h2) << 1;
|
|
if (op == 0) // DPAQX
|
|
prod += (signed64)result;
|
|
else // DPSQX
|
|
prod -= (signed64)result;
|
|
}
|
|
// Saturation on the accumulator.
|
|
if (sat == 1)
|
|
{
|
|
max = (signed64) 0x7fffffffLL;
|
|
min = (signed64) 0xffffffff80000000LL;
|
|
if (prod > max)
|
|
{
|
|
DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
|
|
prod = max;
|
|
}
|
|
else if (prod < min)
|
|
{
|
|
DSPCR |= (1 << (DSPCR_OUFLAG_SHIFT + ac));
|
|
prod = min;
|
|
}
|
|
}
|
|
DSPLO(ac) = EXTEND32 (prod);
|
|
DSPHI(ac) = EXTEND32 (prod >> 32);
|
|
}
|
|
|
|
011111,00000,5.RT,5.RD,00001,010010:SPECIAL3:32::ABSQ_S.QB
|
|
"absq_s.qb r<RD>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
int i;
|
|
signed8 q0;
|
|
unsigned32 v1 = GPR[RT];
|
|
unsigned32 result = 0;
|
|
for (i = 0; i < 32; i += 8, v1 >>= 8)
|
|
{
|
|
q0 = (signed8)(v1 & 0xff);
|
|
if (q0 == (signed8)0x80)
|
|
{
|
|
DSPCR |= DSPCR_OUFLAG4;
|
|
q0 = 0x7f;
|
|
}
|
|
else if (q0 & 0x80)
|
|
q0 = -q0;
|
|
result |= ((unsigned32)((unsigned8)q0) << i);
|
|
}
|
|
GPR[RD] = EXTEND32 (result);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01000,010000:SPECIAL3:32::ADDU.PH
|
|
"addu.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_u_ph_op (SD_, RD, RS, RT, 0, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01100,010000:SPECIAL3:32::ADDU_S.PH
|
|
"addu_s.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_u_ph_op (SD_, RD, RS, RT, 0, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,00000,011000:SPECIAL3:32::ADDUH.QB
|
|
"adduh.qb r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_uh_qb_op (SD_, RD, RS, RT, 0, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,00010,011000:SPECIAL3:32::ADDUH_R.QB
|
|
"adduh_r.qb r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_uh_qb_op (SD_, RD, RS, RT, 0, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.SA,00000,110001:SPECIAL3:32::APPEND
|
|
"append r<RT>, r<RS>, <SA>"
|
|
*dsp2:
|
|
{
|
|
unsigned32 v0 = GPR[RS];
|
|
unsigned32 v1 = GPR[RT];
|
|
unsigned32 result;
|
|
unsigned32 mask = (1 << SA) - 1;
|
|
result = (v1 << SA) | (v0 & mask);
|
|
GPR[RT] = EXTEND32 (result);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.BP,10000,110001:SPECIAL3:32::BALIGN
|
|
"balign r<RT>, r<RS>, <BP>"
|
|
*dsp2:
|
|
{
|
|
unsigned32 v0 = GPR[RS];
|
|
unsigned32 v1 = GPR[RT];
|
|
unsigned32 result;
|
|
if (BP == 0)
|
|
result = v1;
|
|
else
|
|
result = (v1 << 8 * BP) | (v0 >> 8 * (4 - BP));
|
|
GPR[RT] = EXTEND32 (result);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,11000,010001:SPECIAL3:32::CMPGDU.EQ.QB
|
|
"cmpgdu.eq.qb r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qb_cmpgdu (SD_, RD, RS, RT, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,11001,010001:SPECIAL3:32::CMPGDU.LT.QB
|
|
"cmpgdu.lt.qb r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qb_cmpgdu (SD_, RD, RS, RT, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,11010,010001:SPECIAL3:32::CMPGDU.LE.QB
|
|
"cmpgdu.le.qb r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qb_cmpgdu (SD_, RD, RS, RT, 2);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,00000,110000:SPECIAL3:32::DPA.W.PH
|
|
"dpa.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_w_ph_dot_product (SD_, AC, RS, RT, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,00001,110000:SPECIAL3:32::DPS.W.PH
|
|
"dps.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_w_ph_dot_product (SD_, AC, RS, RT, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01100,011000:SPECIAL3:32::MUL.PH
|
|
"mul.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_ph_op (SD_, RD, RS, RT, 2, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01110,011000:SPECIAL3:32::MUL_S.PH
|
|
"mul_s.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_ph_op (SD_, RD, RS, RT, 2, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,10111,011000:SPECIAL3:32::MULQ_RS.W
|
|
"mulq_rs.w r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_w_mulq (SD_, RD, RS, RT, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,11110,010000:SPECIAL3:32::MULQ_S.PH
|
|
"mulq_s.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_ph_mulq (SD_, RD, RS, RT, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,10110,011000:SPECIAL3:32::MULQ_S.W
|
|
"mulq_s.w r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_w_mulq (SD_, RD, RS, RT, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,00010,110000:SPECIAL3:32::MULSA.W.PH
|
|
"mulsa.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
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);
|
|
result = (signed32)h1 * (signed32)h2;
|
|
|
|
if (i == 0)
|
|
prod -= (signed64) result;
|
|
else
|
|
prod += (signed64) result;
|
|
}
|
|
DSPLO(AC) = EXTEND32 (prod);
|
|
DSPHI(AC) = EXTEND32 (prod >> 32);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01101,010001:SPECIAL3:32::PRECR.QB.PH
|
|
"precr.qb.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
unsigned32 v1 = GPR[RS];
|
|
unsigned32 v2 = GPR[RT];
|
|
unsigned32 tempu = (v1 & 0xff0000) >> 16;
|
|
unsigned32 tempv = (v1 & 0xff);
|
|
unsigned32 tempw = (v2 & 0xff0000) >> 16;
|
|
unsigned32 tempx = (v2 & 0xff);
|
|
GPR[RD] = EXTEND32 ((tempu << 24) | (tempv << 16) | (tempw << 8) | tempx);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.SA,11110,010001:SPECIAL3:32::PRECR_SRA.PH.W
|
|
"precr_sra.ph.w r<RT>, r<RS>, <SA>"
|
|
*dsp2:
|
|
{
|
|
do_precr_sra (SD_, RT, RS, SA, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.SA,11111,010001:SPECIAL3:32::PRECR_SRA_R.PH.W
|
|
"precr_sra_r.ph.w r<RT>, r<RS>, <SA>"
|
|
*dsp2:
|
|
{
|
|
do_precr_sra (SD_, RT, RS, SA, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.SA,00001,110001:SPECIAL3:32::PREPEND
|
|
"prepend r<RT>, r<RS>, <SA>"
|
|
*dsp2:
|
|
{
|
|
unsigned32 v0 = GPR[RS];
|
|
unsigned32 v1 = GPR[RT];
|
|
unsigned32 result;
|
|
if (SA == 0)
|
|
result = v1;
|
|
else
|
|
result = (v0 << (32 - SA)) | (v1 >> SA);
|
|
GPR[RT] = EXTEND32 (result);
|
|
}
|
|
|
|
011111,00,3.SHIFT3,5.RT,5.RD,00100,010011:SPECIAL3:32::SHRA.QB
|
|
"shra.qb r<RD>, r<RT>, <SHIFT3>"
|
|
*dsp2:
|
|
{
|
|
do_qb_shra (SD_, RD, RT, SHIFT3, 0);
|
|
}
|
|
|
|
011111,00,3.SHIFT3,5.RT,5.RD,00101,010011:SPECIAL3:32::SHRA_R.QB
|
|
"shra_r.qb r<RD>, r<RT>, <SHIFT3>"
|
|
*dsp2:
|
|
{
|
|
do_qb_shra (SD_, RD, RT, SHIFT3, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,00110,010011:SPECIAL3:32::SHRAV.QB
|
|
"shrav.qb r<RD>, r<RT>, r<RS>"
|
|
*dsp2:
|
|
{
|
|
unsigned32 shift = GPR[RS] & 0x7;
|
|
do_qb_shra (SD_, RD, RT, shift, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,00111,010011:SPECIAL3:32::SHRAV_R.QB
|
|
"shrav_r.qb r<RD>, r<RT>, r<RS>"
|
|
*dsp2:
|
|
{
|
|
unsigned32 shift = GPR[RS] & 0x7;
|
|
do_qb_shra (SD_, RD, RT, shift, 1);
|
|
}
|
|
|
|
011111,0,4.SHIFT4,5.RT,5.RD,11001,010011:SPECIAL3:32::SHRL.PH
|
|
"shrl.ph r<RD>, r<RT>, <SHIFT4>"
|
|
*dsp2:
|
|
{
|
|
do_ph_shrl (SD_, RD, RT, SHIFT4);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,11011,010011:SPECIAL3:32::SHRLV.PH
|
|
"shrlv.ph r<RD>, r<RT>, r<RS>"
|
|
*dsp2:
|
|
{
|
|
unsigned32 shift = GPR[RS] & 0xf;
|
|
do_ph_shrl (SD_, RD, RT, shift);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01001,010000:SPECIAL3:32::SUBU.PH
|
|
"subu.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_u_ph_op (SD_, RD, RS, RT, 1, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01101,010000:SPECIAL3:32::SUBU_S.PH
|
|
"subu_s.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_u_ph_op (SD_, RD, RS, RT, 1, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,00001,011000:SPECIAL3:32::SUBUH.QB
|
|
"subuh.qb r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_uh_qb_op (SD_, RD, RS, RT, 1, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,00011,011000:SPECIAL3:32::SUBUH_R.QB
|
|
"subuh_r.qb r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_uh_qb_op (SD_, RD, RS, RT, 1, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01000,011000:SPECIAL3:32::ADDQH.PH
|
|
"addqh.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_ph_op (SD_, RD, RS, RT, 0, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01010,011000:SPECIAL3:32::ADDQH_R.PH
|
|
"addqh_r.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_ph_op (SD_, RD, RS, RT, 0, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,10000,011000:SPECIAL3:32::ADDQH.W
|
|
"addqh.w r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_w_op (SD_, RD, RS, RT, 0, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,10010,011000:SPECIAL3:32::ADDQH_R.W
|
|
"addqh_r.w r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_w_op (SD_, RD, RS, RT, 0, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01001,011000:SPECIAL3:32::SUBQH.PH
|
|
"subqh.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_ph_op (SD_, RD, RS, RT, 1, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,01011,011000:SPECIAL3:32::SUBQH_R.PH
|
|
"subqh_r.ph r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_ph_op (SD_, RD, RS, RT, 1, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,10001,011000:SPECIAL3:32::SUBQH.W
|
|
"subqh.w r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_w_op (SD_, RD, RS, RT, 1, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,5.RD,10011,011000:SPECIAL3:32::SUBQH_R.W
|
|
"subqh_r.w r<RD>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qh_w_op (SD_, RD, RS, RT, 1, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,01000,110000:SPECIAL3:32::DPAX.W.PH
|
|
"dpax.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_x_w_ph_dot_product (SD_, AC, RS, RT, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,01001,110000:SPECIAL3:32::DPSX.W.PH
|
|
"dpsx.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_x_w_ph_dot_product (SD_, AC, RS, RT, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,11000,110000:SPECIAL3:32::DPAQX_S.W.PH
|
|
"dpaqx_s.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qx_w_ph_dot_product (SD_, AC, RS, RT, 0, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,11010,110000:SPECIAL3:32::DPAQX_SA.W.PH
|
|
"dpaqx_sa.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qx_w_ph_dot_product (SD_, AC, RS, RT, 0, 1);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,11001,110000:SPECIAL3:32::DPSQX_S.W.PH
|
|
"dpsqx_s.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qx_w_ph_dot_product (SD_, AC, RS, RT, 1, 0);
|
|
}
|
|
|
|
011111,5.RS,5.RT,000,2.AC,11011,110000:SPECIAL3:32::DPSQX_SA.W.PH
|
|
"dpsqx_sa.w.ph ac<AC>, r<RS>, r<RT>"
|
|
*dsp2:
|
|
{
|
|
do_qx_w_ph_dot_product (SD_, AC, RS, RT, 1, 1);
|
|
}
|