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picodrive/cpu/sh2/mame/sh2.c
notaz a8b03e2d4d 32x: add SR masking in MAME sh2 
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@815 be3aeb3a-fb24-0410-a615-afba39da0efa
2009-10-13 21:14:53 +00:00

2139 lines
43 KiB
C
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/*****************************************************************************
*
* sh2.c
* Portable Hitachi SH-2 (SH7600 family) emulator
*
* Copyright Juergen Buchmueller <pullmoll@t-online.de>,
* all rights reserved.
*
* - This source code is released as freeware for non-commercial purposes.
* - You are free to use and redistribute this code in modified or
* unmodified form, provided you list me in the credits.
* - If you modify this source code, you must add a notice to each modified
* source file that it has been changed. If you're a nice person, you
* will clearly mark each change too. :)
* - If you wish to use this for commercial purposes, please contact me at
* pullmoll@t-online.de
* - The author of this copywritten work reserves the right to change the
* terms of its usage and license at any time, including retroactively
* - This entire notice must remain in the source code.
*
* This work is based on <tiraniddo@hotmail.com> C/C++ implementation of
* the SH-2 CPU core and was adapted to the MAME CPU core requirements.
* Thanks also go to Chuck Mason <chukjr@sundail.net> and Olivier Galibert
* <galibert@pobox.com> for letting me peek into their SEMU code :-)
*
*****************************************************************************/
/*****************************************************************************
Changes
20051129 Mariusz Wojcieszek
- introduced memory_decrypted_read_word() for opcode fetching
20050813 Mariusz Wojcieszek
- fixed 64 bit / 32 bit division in division unit
20031015 O. Galibert
- dma fixes, thanks to sthief
20031013 O. Galibert, A. Giles
- timer fixes
- multi-cpu simplifications
20030915 O. Galibert
- fix DMA1 irq vector
- ignore writes to DRCRx
- fix cpu number issues
- fix slave/master recognition
- fix wrong-cpu-in-context problem with the timers
20021020 O. Galibert
- DMA implementation, lightly tested
- delay slot in debugger fixed
- add divide box mirrors
- Nicola-ify the indentation
- Uncrapify sh2_internal_*
- Put back nmi support that had been lost somehow
20020914 R. Belmont
- Initial SH2 internal timers implementation, based on code by O. Galibert.
Makes music work in galspanic4/s/s2, panic street, cyvern, other SKNS games.
- Fix to external division, thanks to "spice" on the E2J board.
Corrects behavior of s1945ii turret boss.
20020302 Olivier Galibert (galibert@mame.net)
- Fixed interrupt in delay slot
- Fixed rotcr
- Fixed div1
- Fixed mulu
- Fixed negc
20020301 R. Belmont
- Fixed external division
20020225 Olivier Galibert (galibert@mame.net)
- Fixed interrupt handling
20010207 Sylvain Glaize (mokona@puupuu.org)
- Bug fix in INLINE void MOVBM(UINT32 m, UINT32 n) (see comment)
- Support of full 32 bit addressing (RB, RW, RL and WB, WW, WL functions)
reason : when the two high bits of the address are set, access is
done directly in the cache data array. The SUPER KANEKO NOVA SYSTEM
sets the stack pointer here, using these addresses as usual RAM access.
No real cache support has been added.
- Read/Write memory format correction (_bew to _bedw) (see also SH2
definition in cpuintrf.c and DasmSH2(..) in sh2dasm.c )
20010623 James Forshaw (TyRaNiD@totalise.net)
- Modified operation of sh2_exception. Done cause mame irq system is stupid, and
doesnt really seem designed for any more than 8 interrupt lines.
20010701 James Forshaw (TyRaNiD@totalise.net)
- Fixed DIV1 operation. Q bit now correctly generated
20020218 Added save states (mokona@puupuu.org)
*****************************************************************************/
//#include "debugger.h"
//#include "sh2.h"
//#include "sh2comn.h"
#define INLINE static
//CPU_DISASSEMBLE( sh2 );
#ifndef USE_SH2DRC
/* speed up delay loops, bail out of tight loops */
#define BUSY_LOOP_HACKS 1
#define VERBOSE 0
#define LOG(x) do { if (VERBOSE) logerror x; } while (0)
//int sh2_icount;
SH2 *sh2;
#if 0
INLINE UINT8 RB(offs_t A)
{
if (A >= 0xe0000000)
return sh2_internal_r(sh2->internal, (A & 0x1fc)>>2, 0xff << (((~A) & 3)*8)) >> (((~A) & 3)*8);
if (A >= 0xc0000000)
return memory_read_byte_32be(sh2->program, A);
if (A >= 0x40000000)
return 0xa5;
return memory_read_byte_32be(sh2->program, A & AM);
}
INLINE UINT16 RW(offs_t A)
{
if (A >= 0xe0000000)
return sh2_internal_r(sh2->internal, (A & 0x1fc)>>2, 0xffff << (((~A) & 2)*8)) >> (((~A) & 2)*8);
if (A >= 0xc0000000)
return memory_read_word_32be(sh2->program, A);
if (A >= 0x40000000)
return 0xa5a5;
return memory_read_word_32be(sh2->program, A & AM);
}
INLINE UINT32 RL(offs_t A)
{
if (A >= 0xe0000000)
return sh2_internal_r(sh2->internal, (A & 0x1fc)>>2, 0xffffffff);
if (A >= 0xc0000000)
return memory_read_dword_32be(sh2->program, A);
if (A >= 0x40000000)
return 0xa5a5a5a5;
return memory_read_dword_32be(sh2->program, A & AM);
}
INLINE void WB(offs_t A, UINT8 V)
{
if (A >= 0xe0000000)
{
sh2_internal_w(sh2->internal, (A & 0x1fc)>>2, V << (((~A) & 3)*8), 0xff << (((~A) & 3)*8));
return;
}
if (A >= 0xc0000000)
{
memory_write_byte_32be(sh2->program, A,V);
return;
}
if (A >= 0x40000000)
return;
memory_write_byte_32be(sh2->program, A & AM,V);
}
INLINE void WW(offs_t A, UINT16 V)
{
if (A >= 0xe0000000)
{
sh2_internal_w(sh2->internal, (A & 0x1fc)>>2, V << (((~A) & 2)*8), 0xffff << (((~A) & 2)*8));
return;
}
if (A >= 0xc0000000)
{
memory_write_word_32be(sh2->program, A,V);
return;
}
if (A >= 0x40000000)
return;
memory_write_word_32be(sh2->program, A & AM,V);
}
INLINE void WL(offs_t A, UINT32 V)
{
if (A >= 0xe0000000)
{
sh2_internal_w(sh2->internal, (A & 0x1fc)>>2, V, 0xffffffff);
return;
}
if (A >= 0xc0000000)
{
memory_write_dword_32be(sh2->program, A,V);
return;
}
if (A >= 0x40000000)
return;
memory_write_dword_32be(sh2->program, A & AM,V);
}
#endif
/* code cycles t-bit
* 0011 nnnn mmmm 1100 1 -
* ADD Rm,Rn
*/
INLINE void ADD(UINT32 m, UINT32 n)
{
sh2->r[n] += sh2->r[m];
}
/* code cycles t-bit
* 0111 nnnn iiii iiii 1 -
* ADD #imm,Rn
*/
INLINE void ADDI(UINT32 i, UINT32 n)
{
sh2->r[n] += (INT32)(INT16)(INT8)i;
}
/* code cycles t-bit
* 0011 nnnn mmmm 1110 1 carry
* ADDC Rm,Rn
*/
INLINE void ADDC(UINT32 m, UINT32 n)
{
UINT32 tmp0, tmp1;
tmp1 = sh2->r[n] + sh2->r[m];
tmp0 = sh2->r[n];
sh2->r[n] = tmp1 + (sh2->sr & T);
if (tmp0 > tmp1)
sh2->sr |= T;
else
sh2->sr &= ~T;
if (tmp1 > sh2->r[n])
sh2->sr |= T;
}
/* code cycles t-bit
* 0011 nnnn mmmm 1111 1 overflow
* ADDV Rm,Rn
*/
INLINE void ADDV(UINT32 m, UINT32 n)
{
INT32 dest, src, ans;
if ((INT32) sh2->r[n] >= 0)
dest = 0;
else
dest = 1;
if ((INT32) sh2->r[m] >= 0)
src = 0;
else
src = 1;
src += dest;
sh2->r[n] += sh2->r[m];
if ((INT32) sh2->r[n] >= 0)
ans = 0;
else
ans = 1;
ans += dest;
if (src == 0 || src == 2)
{
if (ans == 1)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0010 nnnn mmmm 1001 1 -
* AND Rm,Rn
*/
INLINE void AND(UINT32 m, UINT32 n)
{
sh2->r[n] &= sh2->r[m];
}
/* code cycles t-bit
* 1100 1001 iiii iiii 1 -
* AND #imm,R0
*/
INLINE void ANDI(UINT32 i)
{
sh2->r[0] &= i;
}
/* code cycles t-bit
* 1100 1101 iiii iiii 1 -
* AND.B #imm,@(R0,GBR)
*/
INLINE void ANDM(UINT32 i)
{
UINT32 temp;
sh2->ea = sh2->gbr + sh2->r[0];
temp = i & RB( sh2->ea );
WB( sh2->ea, temp );
sh2_icount -= 2;
}
/* code cycles t-bit
* 1000 1011 dddd dddd 3/1 -
* BF disp8
*/
INLINE void BF(UINT32 d)
{
if ((sh2->sr & T) == 0)
{
INT32 disp = ((INT32)d << 24) >> 24;
sh2->pc = sh2->ea = sh2->pc + disp * 2 + 2;
sh2_icount -= 2;
}
}
/* code cycles t-bit
* 1000 1111 dddd dddd 3/1 -
* BFS disp8
*/
INLINE void BFS(UINT32 d)
{
if ((sh2->sr & T) == 0)
{
INT32 disp = ((INT32)d << 24) >> 24;
sh2->delay = sh2->pc;
sh2->pc = sh2->ea = sh2->pc + disp * 2 + 2;
sh2_icount--;
}
}
/* code cycles t-bit
* 1010 dddd dddd dddd 2 -
* BRA disp12
*/
INLINE void BRA(UINT32 d)
{
INT32 disp = ((INT32)d << 20) >> 20;
#if BUSY_LOOP_HACKS
if (disp == -2)
{
UINT32 next_opcode = RW(sh2->pc & AM);
/* BRA $
* NOP
*/
if (next_opcode == 0x0009)
sh2_icount %= 3; /* cycles for BRA $ and NOP taken (3) */
}
#endif
sh2->delay = sh2->pc;
sh2->pc = sh2->ea = sh2->pc + disp * 2 + 2;
sh2_icount--;
}
/* code cycles t-bit
* 0000 mmmm 0010 0011 2 -
* BRAF Rm
*/
INLINE void BRAF(UINT32 m)
{
sh2->delay = sh2->pc;
sh2->pc += sh2->r[m] + 2;
sh2_icount--;
}
/* code cycles t-bit
* 1011 dddd dddd dddd 2 -
* BSR disp12
*/
INLINE void BSR(UINT32 d)
{
INT32 disp = ((INT32)d << 20) >> 20;
sh2->pr = sh2->pc + 2;
sh2->delay = sh2->pc;
sh2->pc = sh2->ea = sh2->pc + disp * 2 + 2;
sh2_icount--;
}
/* code cycles t-bit
* 0000 mmmm 0000 0011 2 -
* BSRF Rm
*/
INLINE void BSRF(UINT32 m)
{
sh2->pr = sh2->pc + 2;
sh2->delay = sh2->pc;
sh2->pc += sh2->r[m] + 2;
sh2_icount--;
}
/* code cycles t-bit
* 1000 1001 dddd dddd 3/1 -
* BT disp8
*/
INLINE void BT(UINT32 d)
{
if ((sh2->sr & T) != 0)
{
INT32 disp = ((INT32)d << 24) >> 24;
sh2->pc = sh2->ea = sh2->pc + disp * 2 + 2;
sh2_icount -= 2;
}
}
/* code cycles t-bit
* 1000 1101 dddd dddd 2/1 -
* BTS disp8
*/
INLINE void BTS(UINT32 d)
{
if ((sh2->sr & T) != 0)
{
INT32 disp = ((INT32)d << 24) >> 24;
sh2->delay = sh2->pc;
sh2->pc = sh2->ea = sh2->pc + disp * 2 + 2;
sh2_icount--;
}
}
/* code cycles t-bit
* 0000 0000 0010 1000 1 -
* CLRMAC
*/
INLINE void CLRMAC(void)
{
sh2->mach = 0;
sh2->macl = 0;
}
/* code cycles t-bit
* 0000 0000 0000 1000 1 -
* CLRT
*/
INLINE void CLRT(void)
{
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0011 nnnn mmmm 0000 1 comparison result
* CMP_EQ Rm,Rn
*/
INLINE void CMPEQ(UINT32 m, UINT32 n)
{
if (sh2->r[n] == sh2->r[m])
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0011 nnnn mmmm 0011 1 comparison result
* CMP_GE Rm,Rn
*/
INLINE void CMPGE(UINT32 m, UINT32 n)
{
if ((INT32) sh2->r[n] >= (INT32) sh2->r[m])
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0011 nnnn mmmm 0111 1 comparison result
* CMP_GT Rm,Rn
*/
INLINE void CMPGT(UINT32 m, UINT32 n)
{
if ((INT32) sh2->r[n] > (INT32) sh2->r[m])
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0011 nnnn mmmm 0110 1 comparison result
* CMP_HI Rm,Rn
*/
INLINE void CMPHI(UINT32 m, UINT32 n)
{
if ((UINT32) sh2->r[n] > (UINT32) sh2->r[m])
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0011 nnnn mmmm 0010 1 comparison result
* CMP_HS Rm,Rn
*/
INLINE void CMPHS(UINT32 m, UINT32 n)
{
if ((UINT32) sh2->r[n] >= (UINT32) sh2->r[m])
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0100 nnnn 0001 0101 1 comparison result
* CMP_PL Rn
*/
INLINE void CMPPL(UINT32 n)
{
if ((INT32) sh2->r[n] > 0)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0100 nnnn 0001 0001 1 comparison result
* CMP_PZ Rn
*/
INLINE void CMPPZ(UINT32 n)
{
if ((INT32) sh2->r[n] >= 0)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0010 nnnn mmmm 1100 1 comparison result
* CMP_STR Rm,Rn
*/
INLINE void CMPSTR(UINT32 m, UINT32 n)
{
UINT32 temp;
INT32 HH, HL, LH, LL;
temp = sh2->r[n] ^ sh2->r[m];
HH = (temp >> 24) & 0xff;
HL = (temp >> 16) & 0xff;
LH = (temp >> 8) & 0xff;
LL = temp & 0xff;
if (HH && HL && LH && LL)
sh2->sr &= ~T;
else
sh2->sr |= T;
}
/* code cycles t-bit
* 1000 1000 iiii iiii 1 comparison result
* CMP/EQ #imm,R0
*/
INLINE void CMPIM(UINT32 i)
{
UINT32 imm = (UINT32)(INT32)(INT16)(INT8)i;
if (sh2->r[0] == imm)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0010 nnnn mmmm 0111 1 calculation result
* DIV0S Rm,Rn
*/
INLINE void DIV0S(UINT32 m, UINT32 n)
{
if ((sh2->r[n] & 0x80000000) == 0)
sh2->sr &= ~Q;
else
sh2->sr |= Q;
if ((sh2->r[m] & 0x80000000) == 0)
sh2->sr &= ~M;
else
sh2->sr |= M;
if ((sh2->r[m] ^ sh2->r[n]) & 0x80000000)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* code cycles t-bit
* 0000 0000 0001 1001 1 0
* DIV0U
*/
INLINE void DIV0U(void)
{
sh2->sr &= ~(M | Q | T);
}
/* code cycles t-bit
* 0011 nnnn mmmm 0100 1 calculation result
* DIV1 Rm,Rn
*/
INLINE void DIV1(UINT32 m, UINT32 n)
{
UINT32 tmp0;
UINT32 old_q;
old_q = sh2->sr & Q;
if (0x80000000 & sh2->r[n])
sh2->sr |= Q;
else
sh2->sr &= ~Q;
sh2->r[n] = (sh2->r[n] << 1) | (sh2->sr & T);
if (!old_q)
{
if (!(sh2->sr & M))
{
tmp0 = sh2->r[n];
sh2->r[n] -= sh2->r[m];
if(!(sh2->sr & Q))
if(sh2->r[n] > tmp0)
sh2->sr |= Q;
else
sh2->sr &= ~Q;
else
if(sh2->r[n] > tmp0)
sh2->sr &= ~Q;
else
sh2->sr |= Q;
}
else
{
tmp0 = sh2->r[n];
sh2->r[n] += sh2->r[m];
if(!(sh2->sr & Q))
{
if(sh2->r[n] < tmp0)
sh2->sr &= ~Q;
else
sh2->sr |= Q;
}
else
{
if(sh2->r[n] < tmp0)
sh2->sr |= Q;
else
sh2->sr &= ~Q;
}
}
}
else
{
if (!(sh2->sr & M))
{
tmp0 = sh2->r[n];
sh2->r[n] += sh2->r[m];
if(!(sh2->sr & Q))
if(sh2->r[n] < tmp0)
sh2->sr |= Q;
else
sh2->sr &= ~Q;
else
if(sh2->r[n] < tmp0)
sh2->sr &= ~Q;
else
sh2->sr |= Q;
}
else
{
tmp0 = sh2->r[n];
sh2->r[n] -= sh2->r[m];
if(!(sh2->sr & Q))
if(sh2->r[n] > tmp0)
sh2->sr &= ~Q;
else
sh2->sr |= Q;
else
if(sh2->r[n] > tmp0)
sh2->sr |= Q;
else
sh2->sr &= ~Q;
}
}
tmp0 = (sh2->sr & (Q | M));
if((!tmp0) || (tmp0 == 0x300)) /* if Q == M set T else clear T */
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* DMULS.L Rm,Rn */
INLINE void DMULS(UINT32 m, UINT32 n)
{
UINT32 RnL, RnH, RmL, RmH, Res0, Res1, Res2;
UINT32 temp0, temp1, temp2, temp3;
INT32 tempm, tempn, fnLmL;
tempn = (INT32) sh2->r[n];
tempm = (INT32) sh2->r[m];
if (tempn < 0)
tempn = 0 - tempn;
if (tempm < 0)
tempm = 0 - tempm;
if ((INT32) (sh2->r[n] ^ sh2->r[m]) < 0)
fnLmL = -1;
else
fnLmL = 0;
temp1 = (UINT32) tempn;
temp2 = (UINT32) tempm;
RnL = temp1 & 0x0000ffff;
RnH = (temp1 >> 16) & 0x0000ffff;
RmL = temp2 & 0x0000ffff;
RmH = (temp2 >> 16) & 0x0000ffff;
temp0 = RmL * RnL;
temp1 = RmH * RnL;
temp2 = RmL * RnH;
temp3 = RmH * RnH;
Res2 = 0;
Res1 = temp1 + temp2;
if (Res1 < temp1)
Res2 += 0x00010000;
temp1 = (Res1 << 16) & 0xffff0000;
Res0 = temp0 + temp1;
if (Res0 < temp0)
Res2++;
Res2 = Res2 + ((Res1 >> 16) & 0x0000ffff) + temp3;
if (fnLmL < 0)
{
Res2 = ~Res2;
if (Res0 == 0)
Res2++;
else
Res0 = (~Res0) + 1;
}
sh2->mach = Res2;
sh2->macl = Res0;
sh2_icount--;
}
/* DMULU.L Rm,Rn */
INLINE void DMULU(UINT32 m, UINT32 n)
{
UINT32 RnL, RnH, RmL, RmH, Res0, Res1, Res2;
UINT32 temp0, temp1, temp2, temp3;
RnL = sh2->r[n] & 0x0000ffff;
RnH = (sh2->r[n] >> 16) & 0x0000ffff;
RmL = sh2->r[m] & 0x0000ffff;
RmH = (sh2->r[m] >> 16) & 0x0000ffff;
temp0 = RmL * RnL;
temp1 = RmH * RnL;
temp2 = RmL * RnH;
temp3 = RmH * RnH;
Res2 = 0;
Res1 = temp1 + temp2;
if (Res1 < temp1)
Res2 += 0x00010000;
temp1 = (Res1 << 16) & 0xffff0000;
Res0 = temp0 + temp1;
if (Res0 < temp0)
Res2++;
Res2 = Res2 + ((Res1 >> 16) & 0x0000ffff) + temp3;
sh2->mach = Res2;
sh2->macl = Res0;
sh2_icount--;
}
/* DT Rn */
INLINE void DT(UINT32 n)
{
sh2->r[n]--;
if (sh2->r[n] == 0)
sh2->sr |= T;
else
sh2->sr &= ~T;
#if BUSY_LOOP_HACKS
{
UINT32 next_opcode = RW(sh2->pc & AM);
/* DT Rn
* BF $-2
*/
if (next_opcode == 0x8bfd)
{
while (sh2->r[n] > 1 && sh2_icount > 4)
{
sh2->r[n]--;
sh2_icount -= 4; /* cycles for DT (1) and BF taken (3) */
}
}
}
#endif
}
/* EXTS.B Rm,Rn */
INLINE void EXTSB(UINT32 m, UINT32 n)
{
sh2->r[n] = ((INT32)sh2->r[m] << 24) >> 24;
}
/* EXTS.W Rm,Rn */
INLINE void EXTSW(UINT32 m, UINT32 n)
{
sh2->r[n] = ((INT32)sh2->r[m] << 16) >> 16;
}
/* EXTU.B Rm,Rn */
INLINE void EXTUB(UINT32 m, UINT32 n)
{
sh2->r[n] = sh2->r[m] & 0x000000ff;
}
/* EXTU.W Rm,Rn */
INLINE void EXTUW(UINT32 m, UINT32 n)
{
sh2->r[n] = sh2->r[m] & 0x0000ffff;
}
/* JMP @Rm */
INLINE void JMP(UINT32 m)
{
sh2->delay = sh2->pc;
sh2->pc = sh2->ea = sh2->r[m];
}
/* JSR @Rm */
INLINE void JSR(UINT32 m)
{
sh2->delay = sh2->pc;
sh2->pr = sh2->pc + 2;
sh2->pc = sh2->ea = sh2->r[m];
sh2_icount--;
}
/* LDC Rm,SR */
INLINE void LDCSR(UINT32 m)
{
sh2->sr &= ~0xfff;
sh2->sr |= sh2->r[m] & FLAGS;
sh2->test_irq = 1;
}
/* LDC Rm,GBR */
INLINE void LDCGBR(UINT32 m)
{
sh2->gbr = sh2->r[m];
}
/* LDC Rm,VBR */
INLINE void LDCVBR(UINT32 m)
{
sh2->vbr = sh2->r[m];
}
/* LDC.L @Rm+,SR */
INLINE void LDCMSR(UINT32 m)
{
sh2->ea = sh2->r[m];
sh2->sr &= ~0xfff;
sh2->sr |= RL( sh2->ea ) & FLAGS;
sh2->r[m] += 4;
sh2_icount -= 2;
sh2->test_irq = 1;
}
/* LDC.L @Rm+,GBR */
INLINE void LDCMGBR(UINT32 m)
{
sh2->ea = sh2->r[m];
sh2->gbr = RL( sh2->ea );
sh2->r[m] += 4;
sh2_icount -= 2;
}
/* LDC.L @Rm+,VBR */
INLINE void LDCMVBR(UINT32 m)
{
sh2->ea = sh2->r[m];
sh2->vbr = RL( sh2->ea );
sh2->r[m] += 4;
sh2_icount -= 2;
}
/* LDS Rm,MACH */
INLINE void LDSMACH(UINT32 m)
{
sh2->mach = sh2->r[m];
}
/* LDS Rm,MACL */
INLINE void LDSMACL(UINT32 m)
{
sh2->macl = sh2->r[m];
}
/* LDS Rm,PR */
INLINE void LDSPR(UINT32 m)
{
sh2->pr = sh2->r[m];
}
/* LDS.L @Rm+,MACH */
INLINE void LDSMMACH(UINT32 m)
{
sh2->ea = sh2->r[m];
sh2->mach = RL( sh2->ea );
sh2->r[m] += 4;
}
/* LDS.L @Rm+,MACL */
INLINE void LDSMMACL(UINT32 m)
{
sh2->ea = sh2->r[m];
sh2->macl = RL( sh2->ea );
sh2->r[m] += 4;
}
/* LDS.L @Rm+,PR */
INLINE void LDSMPR(UINT32 m)
{
sh2->ea = sh2->r[m];
sh2->pr = RL( sh2->ea );
sh2->r[m] += 4;
}
/* MAC.L @Rm+,@Rn+ */
INLINE void MAC_L(UINT32 m, UINT32 n)
{
UINT32 RnL, RnH, RmL, RmH, Res0, Res1, Res2;
UINT32 temp0, temp1, temp2, temp3;
INT32 tempm, tempn, fnLmL;
tempn = (INT32) RL( sh2->r[n] );
sh2->r[n] += 4;
tempm = (INT32) RL( sh2->r[m] );
sh2->r[m] += 4;
if ((INT32) (tempn ^ tempm) < 0)
fnLmL = -1;
else
fnLmL = 0;
if (tempn < 0)
tempn = 0 - tempn;
if (tempm < 0)
tempm = 0 - tempm;
temp1 = (UINT32) tempn;
temp2 = (UINT32) tempm;
RnL = temp1 & 0x0000ffff;
RnH = (temp1 >> 16) & 0x0000ffff;
RmL = temp2 & 0x0000ffff;
RmH = (temp2 >> 16) & 0x0000ffff;
temp0 = RmL * RnL;
temp1 = RmH * RnL;
temp2 = RmL * RnH;
temp3 = RmH * RnH;
Res2 = 0;
Res1 = temp1 + temp2;
if (Res1 < temp1)
Res2 += 0x00010000;
temp1 = (Res1 << 16) & 0xffff0000;
Res0 = temp0 + temp1;
if (Res0 < temp0)
Res2++;
Res2 = Res2 + ((Res1 >> 16) & 0x0000ffff) + temp3;
if (fnLmL < 0)
{
Res2 = ~Res2;
if (Res0 == 0)
Res2++;
else
Res0 = (~Res0) + 1;
}
if (sh2->sr & S)
{
Res0 = sh2->macl + Res0;
if (sh2->macl > Res0)
Res2++;
Res2 += (sh2->mach & 0x0000ffff);
if (((INT32) Res2 < 0) && (Res2 < 0xffff8000))
{
Res2 = 0x00008000;
Res0 = 0x00000000;
}
else if (((INT32) Res2 > 0) && (Res2 > 0x00007fff))
{
Res2 = 0x00007fff;
Res0 = 0xffffffff;
}
sh2->mach = Res2;
sh2->macl = Res0;
}
else
{
Res0 = sh2->macl + Res0;
if (sh2->macl > Res0)
Res2++;
Res2 += sh2->mach;
sh2->mach = Res2;
sh2->macl = Res0;
}
sh2_icount -= 2;
}
/* MAC.W @Rm+,@Rn+ */
INLINE void MAC_W(UINT32 m, UINT32 n)
{
INT32 tempm, tempn, dest, src, ans;
UINT32 templ;
tempn = (INT32) RW( sh2->r[n] );
sh2->r[n] += 2;
tempm = (INT32) RW( sh2->r[m] );
sh2->r[m] += 2;
templ = sh2->macl;
tempm = ((INT32) (short) tempn * (INT32) (short) tempm);
if ((INT32) sh2->macl >= 0)
dest = 0;
else
dest = 1;
if ((INT32) tempm >= 0)
{
src = 0;
tempn = 0;
}
else
{
src = 1;
tempn = 0xffffffff;
}
src += dest;
sh2->macl += tempm;
if ((INT32) sh2->macl >= 0)
ans = 0;
else
ans = 1;
ans += dest;
if (sh2->sr & S)
{
if (ans == 1)
{
if (src == 0)
sh2->macl = 0x7fffffff;
if (src == 2)
sh2->macl = 0x80000000;
}
}
else
{
sh2->mach += tempn;
if (templ > sh2->macl)
sh2->mach += 1;
}
sh2_icount -= 2;
}
/* MOV Rm,Rn */
INLINE void MOV(UINT32 m, UINT32 n)
{
sh2->r[n] = sh2->r[m];
}
/* MOV.B Rm,@Rn */
INLINE void MOVBS(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[n];
WB( sh2->ea, sh2->r[m] & 0x000000ff);
}
/* MOV.W Rm,@Rn */
INLINE void MOVWS(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[n];
WW( sh2->ea, sh2->r[m] & 0x0000ffff);
}
/* MOV.L Rm,@Rn */
INLINE void MOVLS(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[n];
WL( sh2->ea, sh2->r[m] );
}
/* MOV.B @Rm,Rn */
INLINE void MOVBL(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[m];
sh2->r[n] = (UINT32)(INT32)(INT16)(INT8) RB( sh2->ea );
}
/* MOV.W @Rm,Rn */
INLINE void MOVWL(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[m];
sh2->r[n] = (UINT32)(INT32)(INT16) RW( sh2->ea );
}
/* MOV.L @Rm,Rn */
INLINE void MOVLL(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[m];
sh2->r[n] = RL( sh2->ea );
}
/* MOV.B Rm,@-Rn */
INLINE void MOVBM(UINT32 m, UINT32 n)
{
/* SMG : bug fix, was reading sh2->r[n] */
UINT32 data = sh2->r[m] & 0x000000ff;
sh2->r[n] -= 1;
WB( sh2->r[n], data );
}
/* MOV.W Rm,@-Rn */
INLINE void MOVWM(UINT32 m, UINT32 n)
{
UINT32 data = sh2->r[m] & 0x0000ffff;
sh2->r[n] -= 2;
WW( sh2->r[n], data );
}
/* MOV.L Rm,@-Rn */
INLINE void MOVLM(UINT32 m, UINT32 n)
{
UINT32 data = sh2->r[m];
sh2->r[n] -= 4;
WL( sh2->r[n], data );
}
/* MOV.B @Rm+,Rn */
INLINE void MOVBP(UINT32 m, UINT32 n)
{
sh2->r[n] = (UINT32)(INT32)(INT16)(INT8) RB( sh2->r[m] );
if (n != m)
sh2->r[m] += 1;
}
/* MOV.W @Rm+,Rn */
INLINE void MOVWP(UINT32 m, UINT32 n)
{
sh2->r[n] = (UINT32)(INT32)(INT16) RW( sh2->r[m] );
if (n != m)
sh2->r[m] += 2;
}
/* MOV.L @Rm+,Rn */
INLINE void MOVLP(UINT32 m, UINT32 n)
{
sh2->r[n] = RL( sh2->r[m] );
if (n != m)
sh2->r[m] += 4;
}
/* MOV.B Rm,@(R0,Rn) */
INLINE void MOVBS0(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[n] + sh2->r[0];
WB( sh2->ea, sh2->r[m] & 0x000000ff );
}
/* MOV.W Rm,@(R0,Rn) */
INLINE void MOVWS0(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[n] + sh2->r[0];
WW( sh2->ea, sh2->r[m] & 0x0000ffff );
}
/* MOV.L Rm,@(R0,Rn) */
INLINE void MOVLS0(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[n] + sh2->r[0];
WL( sh2->ea, sh2->r[m] );
}
/* MOV.B @(R0,Rm),Rn */
INLINE void MOVBL0(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[m] + sh2->r[0];
sh2->r[n] = (UINT32)(INT32)(INT16)(INT8) RB( sh2->ea );
}
/* MOV.W @(R0,Rm),Rn */
INLINE void MOVWL0(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[m] + sh2->r[0];
sh2->r[n] = (UINT32)(INT32)(INT16) RW( sh2->ea );
}
/* MOV.L @(R0,Rm),Rn */
INLINE void MOVLL0(UINT32 m, UINT32 n)
{
sh2->ea = sh2->r[m] + sh2->r[0];
sh2->r[n] = RL( sh2->ea );
}
/* MOV #imm,Rn */
INLINE void MOVI(UINT32 i, UINT32 n)
{
sh2->r[n] = (UINT32)(INT32)(INT16)(INT8) i;
}
/* MOV.W @(disp8,PC),Rn */
INLINE void MOVWI(UINT32 d, UINT32 n)
{
UINT32 disp = d & 0xff;
sh2->ea = sh2->pc + disp * 2 + 2;
sh2->r[n] = (UINT32)(INT32)(INT16) RW( sh2->ea );
}
/* MOV.L @(disp8,PC),Rn */
INLINE void MOVLI(UINT32 d, UINT32 n)
{
UINT32 disp = d & 0xff;
sh2->ea = ((sh2->pc + 2) & ~3) + disp * 4;
sh2->r[n] = RL( sh2->ea );
}
/* MOV.B @(disp8,GBR),R0 */
INLINE void MOVBLG(UINT32 d)
{
UINT32 disp = d & 0xff;
sh2->ea = sh2->gbr + disp;
sh2->r[0] = (UINT32)(INT32)(INT16)(INT8) RB( sh2->ea );
}
/* MOV.W @(disp8,GBR),R0 */
INLINE void MOVWLG(UINT32 d)
{
UINT32 disp = d & 0xff;
sh2->ea = sh2->gbr + disp * 2;
sh2->r[0] = (INT32)(INT16) RW( sh2->ea );
}
/* MOV.L @(disp8,GBR),R0 */
INLINE void MOVLLG(UINT32 d)
{
UINT32 disp = d & 0xff;
sh2->ea = sh2->gbr + disp * 4;
sh2->r[0] = RL( sh2->ea );
}
/* MOV.B R0,@(disp8,GBR) */
INLINE void MOVBSG(UINT32 d)
{
UINT32 disp = d & 0xff;
sh2->ea = sh2->gbr + disp;
WB( sh2->ea, sh2->r[0] & 0x000000ff );
}
/* MOV.W R0,@(disp8,GBR) */
INLINE void MOVWSG(UINT32 d)
{
UINT32 disp = d & 0xff;
sh2->ea = sh2->gbr + disp * 2;
WW( sh2->ea, sh2->r[0] & 0x0000ffff );
}
/* MOV.L R0,@(disp8,GBR) */
INLINE void MOVLSG(UINT32 d)
{
UINT32 disp = d & 0xff;
sh2->ea = sh2->gbr + disp * 4;
WL( sh2->ea, sh2->r[0] );
}
/* MOV.B R0,@(disp4,Rn) */
INLINE void MOVBS4(UINT32 d, UINT32 n)
{
UINT32 disp = d & 0x0f;
sh2->ea = sh2->r[n] + disp;
WB( sh2->ea, sh2->r[0] & 0x000000ff );
}
/* MOV.W R0,@(disp4,Rn) */
INLINE void MOVWS4(UINT32 d, UINT32 n)
{
UINT32 disp = d & 0x0f;
sh2->ea = sh2->r[n] + disp * 2;
WW( sh2->ea, sh2->r[0] & 0x0000ffff );
}
/* MOV.L Rm,@(disp4,Rn) */
INLINE void MOVLS4(UINT32 m, UINT32 d, UINT32 n)
{
UINT32 disp = d & 0x0f;
sh2->ea = sh2->r[n] + disp * 4;
WL( sh2->ea, sh2->r[m] );
}
/* MOV.B @(disp4,Rm),R0 */
INLINE void MOVBL4(UINT32 m, UINT32 d)
{
UINT32 disp = d & 0x0f;
sh2->ea = sh2->r[m] + disp;
sh2->r[0] = (UINT32)(INT32)(INT16)(INT8) RB( sh2->ea );
}
/* MOV.W @(disp4,Rm),R0 */
INLINE void MOVWL4(UINT32 m, UINT32 d)
{
UINT32 disp = d & 0x0f;
sh2->ea = sh2->r[m] + disp * 2;
sh2->r[0] = (UINT32)(INT32)(INT16) RW( sh2->ea );
}
/* MOV.L @(disp4,Rm),Rn */
INLINE void MOVLL4(UINT32 m, UINT32 d, UINT32 n)
{
UINT32 disp = d & 0x0f;
sh2->ea = sh2->r[m] + disp * 4;
sh2->r[n] = RL( sh2->ea );
}
/* MOVA @(disp8,PC),R0 */
INLINE void MOVA(UINT32 d)
{
UINT32 disp = d & 0xff;
sh2->ea = ((sh2->pc + 2) & ~3) + disp * 4;
sh2->r[0] = sh2->ea;
}
/* MOVT Rn */
INLINE void MOVT(UINT32 n)
{
sh2->r[n] = sh2->sr & T;
}
/* MUL.L Rm,Rn */
INLINE void MULL(UINT32 m, UINT32 n)
{
sh2->macl = sh2->r[n] * sh2->r[m];
sh2_icount--;
}
/* MULS Rm,Rn */
INLINE void MULS(UINT32 m, UINT32 n)
{
sh2->macl = (INT16) sh2->r[n] * (INT16) sh2->r[m];
}
/* MULU Rm,Rn */
INLINE void MULU(UINT32 m, UINT32 n)
{
sh2->macl = (UINT16) sh2->r[n] * (UINT16) sh2->r[m];
}
/* NEG Rm,Rn */
INLINE void NEG(UINT32 m, UINT32 n)
{
sh2->r[n] = 0 - sh2->r[m];
}
/* NEGC Rm,Rn */
INLINE void NEGC(UINT32 m, UINT32 n)
{
UINT32 temp;
temp = sh2->r[m];
sh2->r[n] = -temp - (sh2->sr & T);
if (temp || (sh2->sr & T))
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* NOP */
INLINE void NOP(void)
{
}
/* NOT Rm,Rn */
INLINE void NOT(UINT32 m, UINT32 n)
{
sh2->r[n] = ~sh2->r[m];
}
/* OR Rm,Rn */
INLINE void OR(UINT32 m, UINT32 n)
{
sh2->r[n] |= sh2->r[m];
}
/* OR #imm,R0 */
INLINE void ORI(UINT32 i)
{
sh2->r[0] |= i;
sh2_icount -= 2;
}
/* OR.B #imm,@(R0,GBR) */
INLINE void ORM(UINT32 i)
{
UINT32 temp;
sh2->ea = sh2->gbr + sh2->r[0];
temp = RB( sh2->ea );
temp |= i;
WB( sh2->ea, temp );
}
/* ROTCL Rn */
INLINE void ROTCL(UINT32 n)
{
UINT32 temp;
temp = (sh2->r[n] >> 31) & T;
sh2->r[n] = (sh2->r[n] << 1) | (sh2->sr & T);
sh2->sr = (sh2->sr & ~T) | temp;
}
/* ROTCR Rn */
INLINE void ROTCR(UINT32 n)
{
UINT32 temp;
temp = (sh2->sr & T) << 31;
if (sh2->r[n] & T)
sh2->sr |= T;
else
sh2->sr &= ~T;
sh2->r[n] = (sh2->r[n] >> 1) | temp;
}
/* ROTL Rn */
INLINE void ROTL(UINT32 n)
{
sh2->sr = (sh2->sr & ~T) | ((sh2->r[n] >> 31) & T);
sh2->r[n] = (sh2->r[n] << 1) | (sh2->r[n] >> 31);
}
/* ROTR Rn */
INLINE void ROTR(UINT32 n)
{
sh2->sr = (sh2->sr & ~T) | (sh2->r[n] & T);
sh2->r[n] = (sh2->r[n] >> 1) | (sh2->r[n] << 31);
}
/* RTE */
INLINE void RTE(void)
{
sh2->ea = sh2->r[15];
sh2->delay = sh2->pc;
sh2->pc = RL( sh2->ea );
sh2->r[15] += 4;
sh2->ea = sh2->r[15];
sh2->sr &= ~0xfff;
sh2->sr |= RL( sh2->ea ) & FLAGS;
sh2->r[15] += 4;
sh2_icount -= 3;
sh2->test_irq = 1;
}
/* RTS */
INLINE void RTS(void)
{
sh2->delay = sh2->pc;
sh2->pc = sh2->ea = sh2->pr;
sh2_icount--;
}
/* SETT */
INLINE void SETT(void)
{
sh2->sr |= T;
}
/* SHAL Rn (same as SHLL) */
INLINE void SHAL(UINT32 n)
{
sh2->sr = (sh2->sr & ~T) | ((sh2->r[n] >> 31) & T);
sh2->r[n] <<= 1;
}
/* SHAR Rn */
INLINE void SHAR(UINT32 n)
{
sh2->sr = (sh2->sr & ~T) | (sh2->r[n] & T);
sh2->r[n] = (UINT32)((INT32)sh2->r[n] >> 1);
}
/* SHLL Rn (same as SHAL) */
INLINE void SHLL(UINT32 n)
{
sh2->sr = (sh2->sr & ~T) | ((sh2->r[n] >> 31) & T);
sh2->r[n] <<= 1;
}
/* SHLL2 Rn */
INLINE void SHLL2(UINT32 n)
{
sh2->r[n] <<= 2;
}
/* SHLL8 Rn */
INLINE void SHLL8(UINT32 n)
{
sh2->r[n] <<= 8;
}
/* SHLL16 Rn */
INLINE void SHLL16(UINT32 n)
{
sh2->r[n] <<= 16;
}
/* SHLR Rn */
INLINE void SHLR(UINT32 n)
{
sh2->sr = (sh2->sr & ~T) | (sh2->r[n] & T);
sh2->r[n] >>= 1;
}
/* SHLR2 Rn */
INLINE void SHLR2(UINT32 n)
{
sh2->r[n] >>= 2;
}
/* SHLR8 Rn */
INLINE void SHLR8(UINT32 n)
{
sh2->r[n] >>= 8;
}
/* SHLR16 Rn */
INLINE void SHLR16(UINT32 n)
{
sh2->r[n] >>= 16;
}
/* SLEEP */
INLINE void SLEEP(void)
{
sh2->pc -= 2;
sh2_icount -= 2;
/* Wait_for_exception; */
}
/* STC SR,Rn */
INLINE void STCSR(UINT32 n)
{
sh2->r[n] = sh2->sr & FLAGS;
}
/* STC GBR,Rn */
INLINE void STCGBR(UINT32 n)
{
sh2->r[n] = sh2->gbr;
}
/* STC VBR,Rn */
INLINE void STCVBR(UINT32 n)
{
sh2->r[n] = sh2->vbr;
}
/* STC.L SR,@-Rn */
INLINE void STCMSR(UINT32 n)
{
sh2->r[n] -= 4;
sh2->ea = sh2->r[n];
WL( sh2->ea, sh2->sr & FLAGS );
sh2_icount--;
}
/* STC.L GBR,@-Rn */
INLINE void STCMGBR(UINT32 n)
{
sh2->r[n] -= 4;
sh2->ea = sh2->r[n];
WL( sh2->ea, sh2->gbr );
sh2_icount--;
}
/* STC.L VBR,@-Rn */
INLINE void STCMVBR(UINT32 n)
{
sh2->r[n] -= 4;
sh2->ea = sh2->r[n];
WL( sh2->ea, sh2->vbr );
sh2_icount--;
}
/* STS MACH,Rn */
INLINE void STSMACH(UINT32 n)
{
sh2->r[n] = sh2->mach;
}
/* STS MACL,Rn */
INLINE void STSMACL(UINT32 n)
{
sh2->r[n] = sh2->macl;
}
/* STS PR,Rn */
INLINE void STSPR(UINT32 n)
{
sh2->r[n] = sh2->pr;
}
/* STS.L MACH,@-Rn */
INLINE void STSMMACH(UINT32 n)
{
sh2->r[n] -= 4;
sh2->ea = sh2->r[n];
WL( sh2->ea, sh2->mach );
}
/* STS.L MACL,@-Rn */
INLINE void STSMMACL(UINT32 n)
{
sh2->r[n] -= 4;
sh2->ea = sh2->r[n];
WL( sh2->ea, sh2->macl );
}
/* STS.L PR,@-Rn */
INLINE void STSMPR(UINT32 n)
{
sh2->r[n] -= 4;
sh2->ea = sh2->r[n];
WL( sh2->ea, sh2->pr );
}
/* SUB Rm,Rn */
INLINE void SUB(UINT32 m, UINT32 n)
{
sh2->r[n] -= sh2->r[m];
}
/* SUBC Rm,Rn */
INLINE void SUBC(UINT32 m, UINT32 n)
{
UINT32 tmp0, tmp1;
tmp1 = sh2->r[n] - sh2->r[m];
tmp0 = sh2->r[n];
sh2->r[n] = tmp1 - (sh2->sr & T);
if (tmp0 < tmp1)
sh2->sr |= T;
else
sh2->sr &= ~T;
if (tmp1 < sh2->r[n])
sh2->sr |= T;
}
/* SUBV Rm,Rn */
INLINE void SUBV(UINT32 m, UINT32 n)
{
INT32 dest, src, ans;
if ((INT32) sh2->r[n] >= 0)
dest = 0;
else
dest = 1;
if ((INT32) sh2->r[m] >= 0)
src = 0;
else
src = 1;
src += dest;
sh2->r[n] -= sh2->r[m];
if ((INT32) sh2->r[n] >= 0)
ans = 0;
else
ans = 1;
ans += dest;
if (src == 1)
{
if (ans == 1)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
else
sh2->sr &= ~T;
}
/* SWAP.B Rm,Rn */
INLINE void SWAPB(UINT32 m, UINT32 n)
{
UINT32 temp0, temp1;
temp0 = sh2->r[m] & 0xffff0000;
temp1 = (sh2->r[m] & 0x000000ff) << 8;
sh2->r[n] = (sh2->r[m] >> 8) & 0x000000ff;
sh2->r[n] = sh2->r[n] | temp1 | temp0;
}
/* SWAP.W Rm,Rn */
INLINE void SWAPW(UINT32 m, UINT32 n)
{
UINT32 temp;
temp = (sh2->r[m] >> 16) & 0x0000ffff;
sh2->r[n] = (sh2->r[m] << 16) | temp;
}
/* TAS.B @Rn */
INLINE void TAS(UINT32 n)
{
UINT32 temp;
sh2->ea = sh2->r[n];
/* Bus Lock enable */
temp = RB( sh2->ea );
if (temp == 0)
sh2->sr |= T;
else
sh2->sr &= ~T;
temp |= 0x80;
/* Bus Lock disable */
WB( sh2->ea, temp );
sh2_icount -= 3;
}
/* TRAPA #imm */
INLINE void TRAPA(UINT32 i)
{
UINT32 imm = i & 0xff;
sh2->ea = sh2->vbr + imm * 4;
sh2->r[15] -= 4;
WL( sh2->r[15], sh2->sr & FLAGS );
sh2->r[15] -= 4;
WL( sh2->r[15], sh2->pc );
sh2->pc = RL( sh2->ea );
sh2_icount -= 7;
}
/* TST Rm,Rn */
INLINE void TST(UINT32 m, UINT32 n)
{
if ((sh2->r[n] & sh2->r[m]) == 0)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* TST #imm,R0 */
INLINE void TSTI(UINT32 i)
{
UINT32 imm = i & 0xff;
if ((imm & sh2->r[0]) == 0)
sh2->sr |= T;
else
sh2->sr &= ~T;
}
/* TST.B #imm,@(R0,GBR) */
INLINE void TSTM(UINT32 i)
{
UINT32 imm = i & 0xff;
sh2->ea = sh2->gbr + sh2->r[0];
if ((imm & RB( sh2->ea )) == 0)
sh2->sr |= T;
else
sh2->sr &= ~T;
sh2_icount -= 2;
}
/* XOR Rm,Rn */
INLINE void XOR(UINT32 m, UINT32 n)
{
sh2->r[n] ^= sh2->r[m];
}
/* XOR #imm,R0 */
INLINE void XORI(UINT32 i)
{
UINT32 imm = i & 0xff;
sh2->r[0] ^= imm;
}
/* XOR.B #imm,@(R0,GBR) */
INLINE void XORM(UINT32 i)
{
UINT32 imm = i & 0xff;
UINT32 temp;
sh2->ea = sh2->gbr + sh2->r[0];
temp = RB( sh2->ea );
temp ^= imm;
WB( sh2->ea, temp );
sh2_icount -= 2;
}
/* XTRCT Rm,Rn */
INLINE void XTRCT(UINT32 m, UINT32 n)
{
UINT32 temp;
temp = (sh2->r[m] << 16) & 0xffff0000;
sh2->r[n] = (sh2->r[n] >> 16) & 0x0000ffff;
sh2->r[n] |= temp;
}
/*****************************************************************************
* OPCODE DISPATCHERS
*****************************************************************************/
INLINE void op0000(UINT16 opcode)
{
switch (opcode & 0x3F)
{
case 0x00: NOP(); break;
case 0x01: NOP(); break;
case 0x02: STCSR(Rn); break;
case 0x03: BSRF(Rn); break;
case 0x04: MOVBS0(Rm, Rn); break;
case 0x05: MOVWS0(Rm, Rn); break;
case 0x06: MOVLS0(Rm, Rn); break;
case 0x07: MULL(Rm, Rn); break;
case 0x08: CLRT(); break;
case 0x09: NOP(); break;
case 0x0a: STSMACH(Rn); break;
case 0x0b: RTS(); break;
case 0x0c: MOVBL0(Rm, Rn); break;
case 0x0d: MOVWL0(Rm, Rn); break;
case 0x0e: MOVLL0(Rm, Rn); break;
case 0x0f: MAC_L(Rm, Rn); break;
case 0x10: NOP(); break;
case 0x11: NOP(); break;
case 0x12: STCGBR(Rn); break;
case 0x13: NOP(); break;
case 0x14: MOVBS0(Rm, Rn); break;
case 0x15: MOVWS0(Rm, Rn); break;
case 0x16: MOVLS0(Rm, Rn); break;
case 0x17: MULL(Rm, Rn); break;
case 0x18: SETT(); break;
case 0x19: DIV0U(); break;
case 0x1a: STSMACL(Rn); break;
case 0x1b: SLEEP(); break;
case 0x1c: MOVBL0(Rm, Rn); break;
case 0x1d: MOVWL0(Rm, Rn); break;
case 0x1e: MOVLL0(Rm, Rn); break;
case 0x1f: MAC_L(Rm, Rn); break;
case 0x20: NOP(); break;
case 0x21: NOP(); break;
case 0x22: STCVBR(Rn); break;
case 0x23: BRAF(Rn); break;
case 0x24: MOVBS0(Rm, Rn); break;
case 0x25: MOVWS0(Rm, Rn); break;
case 0x26: MOVLS0(Rm, Rn); break;
case 0x27: MULL(Rm, Rn); break;
case 0x28: CLRMAC(); break;
case 0x29: MOVT(Rn); break;
case 0x2a: STSPR(Rn); break;
case 0x2b: RTE(); break;
case 0x2c: MOVBL0(Rm, Rn); break;
case 0x2d: MOVWL0(Rm, Rn); break;
case 0x2e: MOVLL0(Rm, Rn); break;
case 0x2f: MAC_L(Rm, Rn); break;
case 0x30: NOP(); break;
case 0x31: NOP(); break;
case 0x32: NOP(); break;
case 0x33: NOP(); break;
case 0x34: MOVBS0(Rm, Rn); break;
case 0x35: MOVWS0(Rm, Rn); break;
case 0x36: MOVLS0(Rm, Rn); break;
case 0x37: MULL(Rm, Rn); break;
case 0x38: NOP(); break;
case 0x39: NOP(); break;
case 0x3c: MOVBL0(Rm, Rn); break;
case 0x3d: MOVWL0(Rm, Rn); break;
case 0x3e: MOVLL0(Rm, Rn); break;
case 0x3f: MAC_L(Rm, Rn); break;
case 0x3a: NOP(); break;
case 0x3b: NOP(); break;
}
}
INLINE void op0001(UINT16 opcode)
{
MOVLS4(Rm, opcode & 0x0f, Rn);
}
INLINE void op0010(UINT16 opcode)
{
switch (opcode & 15)
{
case 0: MOVBS(Rm, Rn); break;
case 1: MOVWS(Rm, Rn); break;
case 2: MOVLS(Rm, Rn); break;
case 3: NOP(); break;
case 4: MOVBM(Rm, Rn); break;
case 5: MOVWM(Rm, Rn); break;
case 6: MOVLM(Rm, Rn); break;
case 7: DIV0S(Rm, Rn); break;
case 8: TST(Rm, Rn); break;
case 9: AND(Rm, Rn); break;
case 10: XOR(Rm, Rn); break;
case 11: OR(Rm, Rn); break;
case 12: CMPSTR(Rm, Rn); break;
case 13: XTRCT(Rm, Rn); break;
case 14: MULU(Rm, Rn); break;
case 15: MULS(Rm, Rn); break;
}
}
INLINE void op0011(UINT16 opcode)
{
switch (opcode & 15)
{
case 0: CMPEQ(Rm, Rn); break;
case 1: NOP(); break;
case 2: CMPHS(Rm, Rn); break;
case 3: CMPGE(Rm, Rn); break;
case 4: DIV1(Rm, Rn); break;
case 5: DMULU(Rm, Rn); break;
case 6: CMPHI(Rm, Rn); break;
case 7: CMPGT(Rm, Rn); break;
case 8: SUB(Rm, Rn); break;
case 9: NOP(); break;
case 10: SUBC(Rm, Rn); break;
case 11: SUBV(Rm, Rn); break;
case 12: ADD(Rm, Rn); break;
case 13: DMULS(Rm, Rn); break;
case 14: ADDC(Rm, Rn); break;
case 15: ADDV(Rm, Rn); break;
}
}
INLINE void op0100(UINT16 opcode)
{
switch (opcode & 0x3F)
{
case 0x00: SHLL(Rn); break;
case 0x01: SHLR(Rn); break;
case 0x02: STSMMACH(Rn); break;
case 0x03: STCMSR(Rn); break;
case 0x04: ROTL(Rn); break;
case 0x05: ROTR(Rn); break;
case 0x06: LDSMMACH(Rn); break;
case 0x07: LDCMSR(Rn); break;
case 0x08: SHLL2(Rn); break;
case 0x09: SHLR2(Rn); break;
case 0x0a: LDSMACH(Rn); break;
case 0x0b: JSR(Rn); break;
case 0x0c: NOP(); break;
case 0x0d: NOP(); break;
case 0x0e: LDCSR(Rn); break;
case 0x0f: MAC_W(Rm, Rn); break;
case 0x10: DT(Rn); break;
case 0x11: CMPPZ(Rn); break;
case 0x12: STSMMACL(Rn); break;
case 0x13: STCMGBR(Rn); break;
case 0x14: NOP(); break;
case 0x15: CMPPL(Rn); break;
case 0x16: LDSMMACL(Rn); break;
case 0x17: LDCMGBR(Rn); break;
case 0x18: SHLL8(Rn); break;
case 0x19: SHLR8(Rn); break;
case 0x1a: LDSMACL(Rn); break;
case 0x1b: TAS(Rn); break;
case 0x1c: NOP(); break;
case 0x1d: NOP(); break;
case 0x1e: LDCGBR(Rn); break;
case 0x1f: MAC_W(Rm, Rn); break;
case 0x20: SHAL(Rn); break;
case 0x21: SHAR(Rn); break;
case 0x22: STSMPR(Rn); break;
case 0x23: STCMVBR(Rn); break;
case 0x24: ROTCL(Rn); break;
case 0x25: ROTCR(Rn); break;
case 0x26: LDSMPR(Rn); break;
case 0x27: LDCMVBR(Rn); break;
case 0x28: SHLL16(Rn); break;
case 0x29: SHLR16(Rn); break;
case 0x2a: LDSPR(Rn); break;
case 0x2b: JMP(Rn); break;
case 0x2c: NOP(); break;
case 0x2d: NOP(); break;
case 0x2e: LDCVBR(Rn); break;
case 0x2f: MAC_W(Rm, Rn); break;
case 0x30: NOP(); break;
case 0x31: NOP(); break;
case 0x32: NOP(); break;
case 0x33: NOP(); break;
case 0x34: NOP(); break;
case 0x35: NOP(); break;
case 0x36: NOP(); break;
case 0x37: NOP(); break;
case 0x38: NOP(); break;
case 0x39: NOP(); break;
case 0x3a: NOP(); break;
case 0x3b: NOP(); break;
case 0x3c: NOP(); break;
case 0x3d: NOP(); break;
case 0x3e: NOP(); break;
case 0x3f: MAC_W(Rm, Rn); break;
}
}
INLINE void op0101(UINT16 opcode)
{
MOVLL4(Rm, opcode & 0x0f, Rn);
}
INLINE void op0110(UINT16 opcode)
{
switch (opcode & 15)
{
case 0: MOVBL(Rm, Rn); break;
case 1: MOVWL(Rm, Rn); break;
case 2: MOVLL(Rm, Rn); break;
case 3: MOV(Rm, Rn); break;
case 4: MOVBP(Rm, Rn); break;
case 5: MOVWP(Rm, Rn); break;
case 6: MOVLP(Rm, Rn); break;
case 7: NOT(Rm, Rn); break;
case 8: SWAPB(Rm, Rn); break;
case 9: SWAPW(Rm, Rn); break;
case 10: NEGC(Rm, Rn); break;
case 11: NEG(Rm, Rn); break;
case 12: EXTUB(Rm, Rn); break;
case 13: EXTUW(Rm, Rn); break;
case 14: EXTSB(Rm, Rn); break;
case 15: EXTSW(Rm, Rn); break;
}
}
INLINE void op0111(UINT16 opcode)
{
ADDI(opcode & 0xff, Rn);
}
INLINE void op1000(UINT16 opcode)
{
switch ( opcode & (15<<8) )
{
case 0 << 8: MOVBS4(opcode & 0x0f, Rm); break;
case 1 << 8: MOVWS4(opcode & 0x0f, Rm); break;
case 2<< 8: NOP(); break;
case 3<< 8: NOP(); break;
case 4<< 8: MOVBL4(Rm, opcode & 0x0f); break;
case 5<< 8: MOVWL4(Rm, opcode & 0x0f); break;
case 6<< 8: NOP(); break;
case 7<< 8: NOP(); break;
case 8<< 8: CMPIM(opcode & 0xff); break;
case 9<< 8: BT(opcode & 0xff); break;
case 10<< 8: NOP(); break;
case 11<< 8: BF(opcode & 0xff); break;
case 12<< 8: NOP(); break;
case 13<< 8: BTS(opcode & 0xff); break;
case 14<< 8: NOP(); break;
case 15<< 8: BFS(opcode & 0xff); break;
}
}
INLINE void op1001(UINT16 opcode)
{
MOVWI(opcode & 0xff, Rn);
}
INLINE void op1010(UINT16 opcode)
{
BRA(opcode & 0xfff);
}
INLINE void op1011(UINT16 opcode)
{
BSR(opcode & 0xfff);
}
INLINE void op1100(UINT16 opcode)
{
switch (opcode & (15<<8))
{
case 0<<8: MOVBSG(opcode & 0xff); break;
case 1<<8: MOVWSG(opcode & 0xff); break;
case 2<<8: MOVLSG(opcode & 0xff); break;
case 3<<8: TRAPA(opcode & 0xff); break;
case 4<<8: MOVBLG(opcode & 0xff); break;
case 5<<8: MOVWLG(opcode & 0xff); break;
case 6<<8: MOVLLG(opcode & 0xff); break;
case 7<<8: MOVA(opcode & 0xff); break;
case 8<<8: TSTI(opcode & 0xff); break;
case 9<<8: ANDI(opcode & 0xff); break;
case 10<<8: XORI(opcode & 0xff); break;
case 11<<8: ORI(opcode & 0xff); break;
case 12<<8: TSTM(opcode & 0xff); break;
case 13<<8: ANDM(opcode & 0xff); break;
case 14<<8: XORM(opcode & 0xff); break;
case 15<<8: ORM(opcode & 0xff); break;
}
}
INLINE void op1101(UINT16 opcode)
{
MOVLI(opcode & 0xff, Rn);
}
INLINE void op1110(UINT16 opcode)
{
MOVI(opcode & 0xff, Rn);
}
INLINE void op1111(UINT16 opcode)
{
NOP();
}
#endif
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