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Bochs/bochs/cpu/shift64.cc

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Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
/////////////////////////////////////////////////////////////////////////
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
// $Id: shift64.cc,v 1.2 2002-09-17 22:50:53 kevinlawton Exp $
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001 MandrakeSoft S.A.
//
// MandrakeSoft S.A.
// 43, rue d'Aboukir
// 75002 Paris - France
// http://www.linux-mandrake.com/
// http://www.mandrakesoft.com/
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#define NEED_CPU_REG_SHORTCUTS 1
#include "bochs.h"
#define LOG_THIS BX_CPU_THIS_PTR
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::SHLD_EqGq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, op2_64, result_64;
unsigned count;
/* op1:op2 << count. result stored in op1 */
if (i->b1 == 0x1a4)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else // 0x1a5
count = CL & 0x3f;
if (!count) return; /* NOP */
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
op2_64 = BX_READ_64BIT_REG(i->nnn());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
result_64 = (op1_64 << count) | (op2_64 >> (64 - count));
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
/* set eflags:
* SHLD count affects the following flags: S,Z,P,C,O
*/
set_CF((op1_64 >> (64 - count)) & 0x01);
if (count == 1)
set_OF(((op1_64 ^ result_64) & BX_CONST64(0x8000000000000000)) > 0);
set_ZF(result_64 == 0);
set_PF_base(result_64);
set_SF(result_64 >> 63);
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::SHRD_EqGq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
#if BX_CPU_LEVEL < 3
BX_PANIC(("shrd_evgvib: not supported on < 386"));
#else
Bit64u op1_64, op2_64, result_64;
unsigned count;
if (i->b1 == 0x1ac)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else // 0x1ad
count = CL & 0x3f;
if (!count) return; /* NOP */
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
op2_64 = BX_READ_64BIT_REG(i->nnn());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
result_64 = (op2_64 << (64 - count)) | (op1_64 >> count);
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
/* set eflags:
* SHRD count affects the following flags: S,Z,P,C,O
*/
set_CF((op1_64 >> (count - 1)) & 0x01);
set_ZF(result_64 == 0);
set_SF(result_64 >> 63);
/* for shift of 1, OF set if sign change occurred. */
if (count == 1)
set_OF(((op1_64 ^ result_64) & BX_CONST64(0x8000000000000000)) > 0);
set_PF_base(result_64);
#endif /* BX_CPU_LEVEL >= 3 */
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::ROL_Eq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, result_64;
unsigned count;
if (i->b1 == 0xc1)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else if (i->b1 == 0xd1)
count = 1;
else // (i->b1 == 0xd3)
count = CL & 0x3f;
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
if (count) {
result_64 = (op1_64 << count) | (op1_64 >> (64 - count));
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
/* set eflags:
* ROL count affects the following flags: C
*/
set_CF(result_64 & 0x01);
if (count == 1)
set_OF(((op1_64 ^ result_64) & BX_CONST64(0x8000000000000000)) > 0);
}
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::ROR_Eq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, result_64, result_b63;
unsigned count;
if (i->b1 == 0xc1)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else if (i->b1 == 0xd1)
count = 1;
else // (i->b1 == 0xd3)
count = CL & 0x3f;
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
if (count) {
result_64 = (op1_64 >> count) | (op1_64 << (64 - count));
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
/* set eflags:
* ROR count affects the following flags: C
*/
result_b63 = result_64 & BX_CONST64(0x8000000000000000);
set_CF(result_b63 != 0);
if (count == 1)
set_OF(((op1_64 ^ result_64) & BX_CONST64(0x8000000000000000)) > 0);
}
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::RCL_Eq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, result_64;
unsigned count;
if (i->b1 == 0xc1)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else if (i->b1 == 0xd1)
count = 1;
else // (i->b1 == 0xd3)
count = CL & 0x3f;
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
if (!count) return;
if (count==1) {
result_64 = (op1_64 << 1) | get_CF();
}
else {
result_64 = (op1_64 << count) |
(get_CF() << (count - 1)) |
(op1_64 >> (65 - count));
}
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
/* set eflags:
* RCL count affects the following flags: C
*/
if (count == 1)
set_OF(((op1_64 ^ result_64) & BX_CONST64(0x8000000000000000)) > 0);
set_CF((op1_64 >> (64 - count)) & 0x01);
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::RCR_Eq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, result_64;
unsigned count;
if (i->b1 == 0xc1)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else if (i->b1 == 0xd1)
count = 1;
else // (i->b1 == 0xd3)
count = CL & 0x3f;
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
if (!count) return;
if (count==1) {
result_64 = (op1_64 >> 1) | (((Bit64u) get_CF()) << 63);
}
else {
result_64 = (op1_64 >> count) |
(get_CF() << (64 - count)) |
(op1_64 << (65 - count));
}
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
/* set eflags:
* RCR count affects the following flags: C
*/
set_CF((op1_64 >> (count - 1)) & 0x01);
if (count == 1)
set_OF(((op1_64 ^ result_64) & BX_CONST64(0x8000000000000000)) > 0);
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::SHL_Eq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, result_64;
unsigned count;
if (i->b1 == 0xc1)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else if (i->b1 == 0xd1)
count = 1;
else // (i->b1 == 0xd3)
count = CL & 0x3f;
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
if (!count) return;
result_64 = (op1_64 << count);
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
SET_FLAGS_OSZAPC_64(op1_64, count, result_64, BX_INSTR_SHL64);
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::SHR_Eq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, result_64;
unsigned count;
if (i->b1 == 0xc1)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else if (i->b1 == 0xd1)
count = 1;
else // (i->b1 == 0xd3)
count = CL & 0x3f;
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
if (!count) return;
result_64 = (op1_64 >> count);
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
SET_FLAGS_OSZAPC_64(op1_64, count, result_64, BX_INSTR_SHR64);
}
void
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
BX_CPU_C::SAR_Eq(bxInstruction_c *i)
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
{
Bit64u op1_64, result_64;
unsigned count;
if (i->b1 == 0xc1)
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
count = i->Ib() & 0x3f;
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
else if (i->b1 == 0xd1)
count = 1;
else // (i->b1 == 0xd3)
count = CL & 0x3f;
/* op1 is a register or memory reference */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
op1_64 = BX_READ_64BIT_REG(i->rm());
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
/* pointer, segment address pair */
read_RMW_virtual_qword(i->seg, i->rm_addr, &op1_64);
}
if (!count) return;
/* count < 64, since only lower 5 bits used */
if (op1_64 & BX_CONST64(0x8000000000000000)) {
result_64 = (op1_64 >> count) | (BX_CONST64(0xffffffffffffffff) << (64 - count));
}
else {
result_64 = (op1_64 >> count);
}
/* now write result back to destination */
Updated accessing of modrm/sib addressing information to use accessors. This lets me work on compressing the size of fetch-decode structure (now called bxInstruction_c). I've reduced it down to about 76 bytes. We should be able to do much better soon. I needed the abstraction of the accessors, so I have a lot of freedom to re-arrange things without making massive future changes. Lost a few percent of performance in these mods, but my main focus was to get the abstraction.
2002-09-18 02:50:53 +04:00
if (i->mod() == 0xc0) {
BX_WRITE_64BIT_REG(i->rm(), result_64);
Moved 64-bit only files from cpu64 to cpu and modified the Makefiles accordingly. These files cause no conflicts at all, since they are not used in 32-bit compiles.
2002-09-13 19:53:22 +04:00
}
else {
write_RMW_virtual_qword(result_64);
}
/* set eflags:
* SAR count affects the following flags: S,Z,P,C
*/
set_CF((op1_64 >> (count - 1)) & 0x01);
set_ZF(result_64 == 0);
set_SF(result_64 >> 63);
if (count == 1)
set_OF(0);
set_PF_base(result_64);
}
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