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binutils-gdb/sim/v850/simops.c
Michael Meissner ee3f2d4f6a Allow exit to work normally under gdb
1996-12-27 19:50:03 +00:00

2167 lines
43 KiB
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#include "config.h"
#include <signal.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "v850_sim.h"
#include "simops.h"
#include "sys/syscall.h"
#include "bfd.h"
#include <errno.h>
#include <sys/stat.h>
#include <sys/times.h>
#include <sys/time.h>
enum op_types {
OP_UNKNOWN,
OP_NONE,
OP_TRAP,
OP_REG,
OP_REG_REG,
OP_REG_REG_CMP,
OP_REG_REG_MOVE,
OP_IMM_REG,
OP_IMM_REG_CMP,
OP_IMM_REG_MOVE,
OP_COND_BR,
OP_LOAD16,
OP_STORE16,
OP_LOAD32,
OP_STORE32,
OP_JUMP,
OP_IMM_REG_REG,
OP_UIMM_REG_REG,
OP_BIT,
OP_EX1,
OP_EX2,
OP_LDSR,
OP_STSR
};
#ifdef DEBUG
static void trace_input PARAMS ((char *name, enum op_types type, int size));
static void trace_output PARAMS ((enum op_types result));
static int init_text_p = 0;
static asection *text;
static bfd_vma text_start;
static bfd_vma text_end;
extern bfd *exec_bfd;
#ifndef SIZE_INSTRUCTION
#define SIZE_INSTRUCTION 6
#endif
#ifndef SIZE_OPERANDS
#define SIZE_OPERANDS 16
#endif
#ifndef SIZE_VALUES
#define SIZE_VALUES 11
#endif
#ifndef SIZE_LOCATION
#define SIZE_LOCATION 40
#endif
static void
trace_input (name, type, size)
char *name;
enum op_types type;
int size;
{
char buf[1024];
char *p;
uint32 values[3];
int num_values, i;
char *cond;
asection *s;
const char *filename;
const char *functionname;
unsigned int linenumber;
if ((v850_debug & DEBUG_TRACE) == 0)
return;
buf[0] = '\0';
if (!init_text_p)
{
init_text_p = 1;
for (s = exec_bfd->sections; s; s = s->next)
if (strcmp (bfd_get_section_name (exec_bfd, s), ".text") == 0)
{
text = s;
text_start = bfd_get_section_vma (exec_bfd, s);
text_end = text_start + bfd_section_size (exec_bfd, s);
break;
}
}
if (text && PC >= text_start && PC < text_end)
{
filename = (const char *)0;
functionname = (const char *)0;
linenumber = 0;
if (bfd_find_nearest_line (exec_bfd, text, (struct symbol_cache_entry **)0, PC - text_start,
&filename, &functionname, &linenumber))
{
p = buf;
if (linenumber)
{
sprintf (p, "Line %5d ", linenumber);
p += strlen (p);
}
if (functionname)
{
sprintf (p, "Func %s ", functionname);
p += strlen (p);
}
else if (filename)
{
char *q = (char *) strrchr (filename, '/');
sprintf (p, "File %s ", (q) ? q+1 : filename);
p += strlen (p);
}
if (*p == ' ')
*p = '\0';
}
}
(*v850_callback->printf_filtered) (v850_callback, "0x%.8x: %-*.*s %-*s",
(unsigned)PC,
SIZE_LOCATION, SIZE_LOCATION, buf,
SIZE_INSTRUCTION, name);
switch (type)
{
default:
case OP_UNKNOWN:
case OP_NONE:
strcpy (buf, "unknown");
break;
case OP_TRAP:
sprintf (buf, "%d", OP[0]);
break;
case OP_REG:
sprintf (buf, "r%d", OP[0]);
break;
case OP_REG_REG:
case OP_REG_REG_CMP:
case OP_REG_REG_MOVE:
sprintf (buf, "r%d,r%d", OP[0], OP[1]);
break;
case OP_IMM_REG:
case OP_IMM_REG_CMP:
case OP_IMM_REG_MOVE:
sprintf (buf, "%d,r%d", OP[0], OP[1]);
break;
case OP_COND_BR:
sprintf (buf, "%d", SEXT9 (OP[0]));
break;
case OP_LOAD16:
sprintf (buf, "%d[r30],r%d", OP[1] * size, OP[0]);
break;
case OP_STORE16:
sprintf (buf, "r%d,%d[r30]", OP[0], OP[1] * size);
break;
case OP_LOAD32:
sprintf (buf, "%d[r%d],r%d", SEXT16 (OP[2]) & ~0x1, OP[0], OP[1]);
break;
case OP_STORE32:
sprintf (buf, "r%d,%d[r%d]", OP[1], SEXT16 (OP[2] & ~0x1), OP[0]);
break;
case OP_JUMP:
sprintf (buf, "%d,r%d", SEXT22 (OP[0]), OP[1]);
break;
case OP_IMM_REG_REG:
sprintf (buf, "%d,r%d,r%d", SEXT16 (OP[0]), OP[1], OP[2]);
break;
case OP_UIMM_REG_REG:
sprintf (buf, "%d,r%d,r%d", OP[0] & 0xffff, OP[1], OP[2]);
break;
case OP_BIT:
sprintf (buf, "%d,%d[r%d]", OP[1] & 0x7, SEXT16 (OP[2]), OP[0]);
break;
case OP_EX1:
switch (OP[0] & 0xf)
{
default: cond = "?"; break;
case 0x0: cond = "v"; break;
case 0x1: cond = "c"; break;
case 0x2: cond = "z"; break;
case 0x3: cond = "nh"; break;
case 0x4: cond = "s"; break;
case 0x5: cond = "t"; break;
case 0x6: cond = "lt"; break;
case 0x7: cond = "le"; break;
case 0x8: cond = "nv"; break;
case 0x9: cond = "nc"; break;
case 0xa: cond = "nz"; break;
case 0xb: cond = "h"; break;
case 0xc: cond = "ns"; break;
case 0xd: cond = "sa"; break;
case 0xe: cond = "ge"; break;
case 0xf: cond = "gt"; break;
}
sprintf (buf, "%s,r%d", cond, OP[1]);
break;
case OP_EX2:
strcpy (buf, "EX2");
break;
case OP_LDSR:
case OP_STSR:
sprintf (buf, "r%d,s%d", OP[0], OP[1]);
break;
}
if ((v850_debug & DEBUG_VALUES) == 0)
{
(*v850_callback->printf_filtered) (v850_callback, "%s\n", buf);
}
else
{
(*v850_callback->printf_filtered) (v850_callback, "%-*s", SIZE_OPERANDS, buf);
switch (type)
{
default:
case OP_UNKNOWN:
case OP_NONE:
case OP_TRAP:
num_values = 0;
break;
case OP_REG:
case OP_REG_REG_MOVE:
values[0] = State.regs[OP[0]];
num_values = 1;
break;
case OP_REG_REG:
case OP_REG_REG_CMP:
values[0] = State.regs[OP[1]];
values[1] = State.regs[OP[0]];
num_values = 2;
break;
case OP_IMM_REG:
case OP_IMM_REG_CMP:
values[0] = SEXT5 (OP[0]);
values[1] = OP[1];
num_values = 2;
break;
case OP_IMM_REG_MOVE:
values[0] = SEXT5 (OP[0]);
num_values = 1;
break;
case OP_COND_BR:
values[0] = State.pc;
values[1] = SEXT9 (OP[0]);
values[2] = PSW;
num_values = 3;
break;
case OP_LOAD16:
values[0] = OP[1] * size;
values[1] = State.regs[30];
num_values = 2;
break;
case OP_STORE16:
values[0] = State.regs[OP[0]];
values[1] = OP[1] * size;
values[2] = State.regs[30];
num_values = 3;
break;
case OP_LOAD32:
values[0] = SEXT16 (OP[2]);
values[1] = State.regs[OP[0]];
num_values = 2;
break;
case OP_STORE32:
values[0] = State.regs[OP[1]];
values[1] = SEXT16 (OP[2]);
values[2] = State.regs[OP[0]];
num_values = 3;
break;
case OP_JUMP:
values[0] = SEXT22 (OP[0]);
values[1] = State.pc;
num_values = 2;
break;
case OP_IMM_REG_REG:
values[0] = SEXT16 (OP[0]) << size;
values[1] = State.regs[OP[1]];
num_values = 2;
break;
case OP_UIMM_REG_REG:
values[0] = (OP[0] & 0xffff) << size;
values[1] = State.regs[OP[1]];
num_values = 2;
break;
case OP_BIT:
num_values = 0;
break;
case OP_EX1:
values[0] = PSW;
num_values = 1;
break;
case OP_EX2:
num_values = 0;
break;
case OP_LDSR:
values[0] = State.regs[OP[0]];
num_values = 1;
break;
case OP_STSR:
values[0] = State.sregs[OP[1]];
num_values = 1;
}
for (i = 0; i < num_values; i++)
(*v850_callback->printf_filtered) (v850_callback, "%*s0x%.8lx", SIZE_VALUES - 10, "", values[i]);
while (i++ < 3)
(*v850_callback->printf_filtered) (v850_callback, "%*s", SIZE_VALUES, "");
}
}
static void
trace_output (result)
enum op_types result;
{
if ((v850_debug & (DEBUG_TRACE | DEBUG_VALUES)) == (DEBUG_TRACE | DEBUG_VALUES))
{
switch (result)
{
default:
case OP_UNKNOWN:
case OP_NONE:
case OP_TRAP:
case OP_REG:
case OP_REG_REG_CMP:
case OP_IMM_REG_CMP:
case OP_COND_BR:
case OP_STORE16:
case OP_STORE32:
case OP_BIT:
case OP_EX2:
break;
case OP_LOAD16:
case OP_STSR:
(*v850_callback->printf_filtered) (v850_callback, " :: 0x%.8lx",
(unsigned long)State.regs[OP[0]]);
break;
case OP_REG_REG:
case OP_REG_REG_MOVE:
case OP_IMM_REG:
case OP_IMM_REG_MOVE:
case OP_LOAD32:
case OP_EX1:
(*v850_callback->printf_filtered) (v850_callback, " :: 0x%.8lx",
(unsigned long)State.regs[OP[1]]);
break;
case OP_IMM_REG_REG:
case OP_UIMM_REG_REG:
(*v850_callback->printf_filtered) (v850_callback, " :: 0x%.8lx",
(unsigned long)State.regs[OP[2]]);
break;
case OP_JUMP:
if (OP[1] != 0)
(*v850_callback->printf_filtered) (v850_callback, " :: 0x%.8lx",
(unsigned long)State.regs[OP[1]]);
break;
case OP_LDSR:
(*v850_callback->printf_filtered) (v850_callback, " :: 0x%.8lx",
(unsigned long)State.sregs[OP[1]]);
break;
}
(*v850_callback->printf_filtered) (v850_callback, "\n");
}
}
#else
#define trace_input(NAME, IN1, IN2)
#define trace_output(RESULT)
#endif
/* sld.b */
void
OP_300 ()
{
unsigned int op2;
int result, temp;
trace_input ("sld.b", OP_LOAD16, 1);
temp = OP[1];
temp &= 0x7f;
op2 = temp;
result = load_mem (State.regs[30] + op2, 1);
State.regs[OP[0]] = SEXT8 (result);
trace_output (OP_LOAD16);
}
/* sld.h */
void
OP_400 ()
{
unsigned int op2;
int result, temp;
trace_input ("sld.h", OP_LOAD16, 2);
temp = OP[1];
temp &= 0x7f;
op2 = temp << 1;
result = load_mem (State.regs[30] + op2, 2);
State.regs[OP[0]] = SEXT16 (result);
trace_output (OP_LOAD16);
}
/* sld.w */
void
OP_500 ()
{
unsigned int op2;
int result, temp;
trace_input ("sld.w", OP_LOAD16, 4);
temp = OP[1];
temp &= 0x7e;
op2 = temp << 1;
result = load_mem (State.regs[30] + op2, 4);
State.regs[OP[0]] = result;
trace_output (OP_LOAD16);
}
/* sst.b */
void
OP_380 ()
{
unsigned int op0, op1;
int temp;
trace_input ("sst.b", OP_STORE16, 1);
op0 = State.regs[OP[0]];
temp = OP[1];
temp &= 0x7f;
op1 = temp;
store_mem (State.regs[30] + op1, 1, op0);
trace_output (OP_STORE16);
}
/* sst.h */
void
OP_480 ()
{
unsigned int op0, op1;
int temp;
trace_input ("sst.h", OP_STORE16, 2);
op0 = State.regs[OP[0]];
temp = OP[1];
temp &= 0x7f;
op1 = temp << 1;
store_mem (State.regs[30] + op1, 2, op0);
trace_output (OP_STORE16);
}
/* sst.w */
void
OP_501 ()
{
unsigned int op0, op1;
int temp;
trace_input ("sst.w", OP_STORE16, 4);
op0 = State.regs[OP[0]];
temp = OP[1];
temp &= 0x7e;
op1 = temp << 1;
store_mem (State.regs[30] + op1, 4, op0);
trace_output (OP_STORE16);
}
/* ld.b */
void
OP_700 ()
{
unsigned int op0, op2;
int result, temp;
trace_input ("ld.b", OP_LOAD32, 1);
op0 = State.regs[OP[0]];
temp = SEXT16 (OP[2]);
op2 = temp;
result = load_mem (op0 + op2, 1);
State.regs[OP[1]] = SEXT8 (result);
trace_output (OP_LOAD32);
}
/* ld.h */
void
OP_720 ()
{
unsigned int op0, op2;
int result, temp;
trace_input ("ld.h", OP_LOAD32, 2);
op0 = State.regs[OP[0]];
temp = SEXT16 (OP[2]);
temp &= ~0x1;
op2 = temp;
result = load_mem (op0 + op2, 2);
State.regs[OP[1]] = SEXT16 (result);
trace_output (OP_LOAD32);
}
/* ld.w */
void
OP_10720 ()
{
unsigned int op0, op2;
int result, temp;
trace_input ("ld.w", OP_LOAD32, 4);
op0 = State.regs[OP[0]];
temp = SEXT16 (OP[2]);
temp &= ~0x1;
op2 = temp;
result = load_mem (op0 + op2, 4);
State.regs[OP[1]] = result;
trace_output (OP_LOAD32);
}
/* st.b */
void
OP_740 ()
{
unsigned int op0, op1, op2;
int temp;
trace_input ("st.b", OP_STORE32, 1);
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
temp = SEXT16 (OP[2]);
op2 = temp;
store_mem (op0 + op2, 1, op1);
trace_output (OP_STORE32);
}
/* st.h */
void
OP_760 ()
{
unsigned int op0, op1, op2;
int temp;
trace_input ("st.h", OP_STORE32, 2);
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
temp = SEXT16 (OP[2] & ~0x1);
op2 = temp;
store_mem (op0 + op2, 2, op1);
trace_output (OP_STORE32);
}
/* st.w */
void
OP_10760 ()
{
unsigned int op0, op1, op2;
int temp;
trace_input ("st.w", OP_STORE32, 4);
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
temp = SEXT16 (OP[2] & ~0x1);
op2 = temp;
store_mem (op0 + op2, 4, op1);
trace_output (OP_STORE32);
}
/* bv disp9 */
void
OP_580 ()
{
unsigned int psw;
int op0;
trace_input ("bv", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_OV) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bl disp9 */
void
OP_581 ()
{
unsigned int psw;
int op0;
trace_input ("bl", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_CY) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* be disp9 */
void
OP_582 ()
{
unsigned int psw;
int op0;
trace_input ("be", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_Z) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bnh disp 9*/
void
OP_583 ()
{
unsigned int psw;
int op0;
trace_input ("bnh", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((((psw & PSW_CY) != 0) | ((psw & PSW_Z) != 0)) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bn disp9 */
void
OP_584 ()
{
unsigned int psw;
int op0;
trace_input ("bn", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_S) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* br disp9 */
void
OP_585 ()
{
unsigned int psw;
int op0;
trace_input ("br", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
State.pc += op0;
trace_output (OP_COND_BR);
}
/* blt disp9 */
void
OP_586 ()
{
unsigned int psw;
int op0;
trace_input ("blt", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0)) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* ble disp9 */
void
OP_587 ()
{
unsigned int psw;
int op0;
trace_input ("ble", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((((psw & PSW_Z) != 0)
|| (((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0))) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bnv disp9 */
void
OP_588 ()
{
unsigned int psw;
int op0;
trace_input ("bnv", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_OV) == 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bnl disp9 */
void
OP_589 ()
{
unsigned int psw;
int op0;
trace_input ("bnl", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_CY) == 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bne disp9 */
void
OP_58A ()
{
unsigned int psw;
int op0;
trace_input ("bne", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_Z) == 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bh disp9 */
void
OP_58B ()
{
unsigned int psw;
int op0;
trace_input ("bh", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((((psw & PSW_CY) != 0) | ((psw & PSW_Z) != 0)) == 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bp disp9 */
void
OP_58C ()
{
unsigned int psw;
int op0;
trace_input ("bp", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_S) == 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bsa disp9 */
void
OP_58D ()
{
unsigned int psw;
int op0;
trace_input ("bsa", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((psw & PSW_SAT) != 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bge disp9 */
void
OP_58E ()
{
unsigned int psw;
int op0;
trace_input ("bge", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0)) == 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* bgt disp9 */
void
OP_58F ()
{
unsigned int psw;
int op0;
trace_input ("bgt", OP_COND_BR, 0);
op0 = SEXT9 (OP[0]);
psw = PSW;
if ((((psw & PSW_Z) != 0)
|| (((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0))) == 0)
State.pc += op0;
else
State.pc += 2;
trace_output (OP_COND_BR);
}
/* jmp [reg1] */
void
OP_60 ()
{
/* interp.c will bump this by +2, so correct for it here. */
trace_input ("jmp", OP_REG, 0);
State.pc = State.regs[OP[0]] - 2;
trace_output (OP_REG);
}
/* jarl disp22, reg */
void
OP_780 ()
{
unsigned int op0, opc;
int temp;
trace_input ("jarl", OP_JUMP, 0);
temp = SEXT22 (OP[0]);
op0 = temp;
opc = State.pc;
State.pc += temp;
/* Gross. jarl X,r0 is really jr and doesn't save its result. */
if (OP[1] != 0)
State.regs[OP[1]] = opc + 4;
trace_output (OP_JUMP);
}
/* add reg, reg */
void
OP_1C0 ()
{
unsigned int op0, op1, result, z, s, cy, ov;
trace_input ("add", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 + op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (result < op0 || result < op1);
ov = ((op0 & 0x80000000) == (op1 & 0x80000000)
&& (op0 & 0x80000000) != (result & 0x80000000));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0));
trace_output (OP_REG_REG);
}
/* add sign_extend(imm5), reg */
void
OP_240 ()
{
unsigned int op0, op1, result, z, s, cy, ov;
int temp;
trace_input ("add", OP_IMM_REG, 0);
/* Compute the result. */
temp = SEXT5 (OP[0]);
op0 = temp;
op1 = State.regs[OP[1]];
result = op0 + op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (result < op0 || result < op1);
ov = ((op0 & 0x80000000) == (op1 & 0x80000000)
&& (op0 & 0x80000000) != (result & 0x80000000));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0));
trace_output (OP_IMM_REG);
}
/* addi sign_extend(imm16), reg, reg */
void
OP_600 ()
{
unsigned int op0, op1, result, z, s, cy, ov;
int temp;
trace_input ("addi", OP_IMM_REG_REG, 0);
/* Compute the result. */
temp = SEXT16 (OP[0]);
op0 = temp;
op1 = State.regs[OP[1]];
result = op0 + op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (result < op0 || result < op1);
ov = ((op0 & 0x80000000) == (op1 & 0x80000000)
&& (op0 & 0x80000000) != (result & 0x80000000));
/* Store the result and condition codes. */
State.regs[OP[2]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0));
trace_output (OP_IMM_REG_REG);
}
/* sub reg1, reg2 */
void
OP_1A0 ()
{
unsigned int op0, op1, result, z, s, cy, ov;
trace_input ("sub", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op1 - op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 < op0);
ov = ((op1 & 0x80000000) != (op0 & 0x80000000)
&& (op1 & 0x80000000) != (result & 0x80000000));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0));
trace_output (OP_REG_REG);
}
/* subr reg1, reg2 */
void
OP_180 ()
{
unsigned int op0, op1, result, z, s, cy, ov;
trace_input ("subr", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 - op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op0 < op1);
ov = ((op0 & 0x80000000) != (op1 & 0x80000000)
&& (op0 & 0x80000000) != (result & 0x80000000));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0));
trace_output (OP_REG_REG);
}
/* mulh reg1, reg2 */
void
OP_E0 ()
{
trace_input ("mulh", OP_REG_REG, 0);
State.regs[OP[1]] = ((State.regs[OP[1]] & 0xffff)
* (State.regs[OP[0]] & 0xffff));
trace_output (OP_REG_REG);
}
/* mulh sign_extend(imm5), reg2
Condition codes */
void
OP_2E0 ()
{
int value = SEXT5 (OP[0]);
trace_input ("mulh", OP_IMM_REG, 0);
State.regs[OP[1]] = (State.regs[OP[1]] & 0xffff) * value;
trace_output (OP_IMM_REG);
}
/* mulhi imm16, reg1, reg2 */
void
OP_6E0 ()
{
int value = OP[0] & 0xffff;
trace_input ("mulhi", OP_IMM_REG_REG, 0);
State.regs[OP[2]] = (State.regs[OP[1]] & 0xffff) * value;
trace_output (OP_IMM_REG_REG);
}
/* divh reg1, reg2 */
void
OP_40 ()
{
unsigned int op0, op1, result, ov, s, z;
int temp;
trace_input ("divh", OP_REG_REG, 0);
/* Compute the result. */
temp = SEXT16 (State.regs[OP[0]]);
op0 = temp;
op1 = State.regs[OP[1]];
if (op0 == 0xffffffff && op1 == 0x80000000)
{
result = 0x80000000;
ov = 1;
}
else if (op0 != 0)
{
result = op1 / op0;
ov = 0;
}
else
{
result = 0x0;
ov = 1;
}
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (ov ? PSW_OV : 0));
trace_output (OP_REG_REG);
}
/* cmp reg, reg */
void
OP_1E0 ()
{
unsigned int op0, op1, result, z, s, cy, ov;
trace_input ("cmp", OP_REG_REG_CMP, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op1 - op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 < op0);
ov = ((op1 & 0x80000000) != (op0 & 0x80000000)
&& (op1 & 0x80000000) != (result & 0x80000000));
/* Set condition codes. */
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0));
trace_output (OP_REG_REG_CMP);
}
/* cmp sign_extend(imm5), reg */
void
OP_260 ()
{
unsigned int op0, op1, result, z, s, cy, ov;
int temp;
/* Compute the result. */
trace_input ("cmp", OP_IMM_REG_CMP, 0);
temp = SEXT5 (OP[0]);
op0 = temp;
op1 = State.regs[OP[1]];
result = op1 - op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 < op0);
ov = ((op1 & 0x80000000) != (op0 & 0x80000000)
&& (op1 & 0x80000000) != (result & 0x80000000));
/* Set condition codes. */
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0));
trace_output (OP_IMM_REG_CMP);
}
/* setf cccc,reg2 */
void
OP_7E0 ()
{
/* Hack alert. We turn off a bit in op0 since we really only
wanted 4 bits. */
unsigned int op0, psw, result = 0;
trace_input ("setf", OP_EX1, 0);
op0 = OP[0] & 0xf;
psw = PSW;
switch (op0)
{
case 0x0:
result = ((psw & PSW_OV) != 0);
break;
case 0x1:
result = ((psw & PSW_CY) != 0);
break;
case 0x2:
result = ((psw & PSW_Z) != 0);
break;
case 0x3:
result = ((((psw & PSW_CY) != 0) | ((psw & PSW_Z) != 0)) != 0);
break;
case 0x4:
result = ((psw & PSW_S) != 0);
break;
case 0x5:
result = 1;
break;
case 0x6:
result = ((((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0)) != 0);
break;
case 0x7:
result = (((((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0))
|| ((psw & PSW_Z) != 0)) != 0);
break;
case 0x8:
result = ((psw & PSW_OV) == 0);
break;
case 0x9:
result = ((psw & PSW_CY) == 0);
break;
case 0xa:
result = ((psw & PSW_Z) == 0);
break;
case 0xb:
result = ((((psw & PSW_CY) != 0) | ((psw & PSW_Z) != 0)) == 0);
break;
case 0xc:
result = ((psw & PSW_S) == 0);
break;
case 0xd:
result = ((psw & PSW_SAT) != 0);
break;
case 0xe:
result = ((((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0)) == 0);
break;
case 0xf:
result = (((((psw & PSW_S) != 0) ^ ((psw & PSW_OV) != 0))
|| ((psw & PSW_Z) != 0)) == 0);
break;
}
State.regs[OP[1]] = result;
trace_output (OP_EX1);
}
/* satadd reg,reg */
void
OP_C0 ()
{
unsigned int op0, op1, result, z, s, cy, ov, sat;
trace_input ("satadd", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 + op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (result < op0 || result < op1);
ov = ((op0 & 0x80000000) == (op1 & 0x80000000)
&& (op0 & 0x80000000) != (result & 0x80000000));
sat = ov;
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0)
| (sat ? PSW_SAT : 0));
/* Handle saturated results. */
if (sat && s)
State.regs[OP[1]] = 0x80000000;
else if (sat)
State.regs[OP[1]] = 0x7fffffff;
trace_output (OP_REG_REG);
}
/* satadd sign_extend(imm5), reg */
void
OP_220 ()
{
unsigned int op0, op1, result, z, s, cy, ov, sat;
int temp;
trace_input ("satadd", OP_IMM_REG, 0);
/* Compute the result. */
temp = SEXT5 (OP[0]);
op0 = temp;
op1 = State.regs[OP[1]];
result = op0 + op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (result < op0 || result < op1);
ov = ((op0 & 0x80000000) == (op1 & 0x80000000)
&& (op0 & 0x80000000) != (result & 0x80000000));
sat = ov;
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0)
| (sat ? PSW_SAT : 0));
/* Handle saturated results. */
if (sat && s)
State.regs[OP[1]] = 0x80000000;
else if (sat)
State.regs[OP[1]] = 0x7fffffff;
trace_output (OP_IMM_REG);
}
/* satsub reg1, reg2 */
void
OP_A0 ()
{
unsigned int op0, op1, result, z, s, cy, ov, sat;
trace_input ("satsub", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op1 - op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 < op0);
ov = ((op1 & 0x80000000) != (op0 & 0x80000000)
&& (op1 & 0x80000000) != (result & 0x80000000));
sat = ov;
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0)
| (sat ? PSW_SAT : 0));
/* Handle saturated results. */
if (sat && s)
State.regs[OP[1]] = 0x80000000;
else if (sat)
State.regs[OP[1]] = 0x7fffffff;
trace_output (OP_REG_REG);
}
/* satsubi sign_extend(imm16), reg */
void
OP_660 ()
{
unsigned int op0, op1, result, z, s, cy, ov, sat;
int temp;
trace_input ("satsubi", OP_IMM_REG, 0);
/* Compute the result. */
temp = SEXT16 (OP[0]);
op0 = temp;
op1 = State.regs[OP[1]];
result = op1 - op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 < op0);
ov = ((op1 & 0x80000000) != (op0 & 0x80000000)
&& (op1 & 0x80000000) != (result & 0x80000000));
sat = ov;
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0)
| (sat ? PSW_SAT : 0));
/* Handle saturated results. */
if (sat && s)
State.regs[OP[1]] = 0x80000000;
else if (sat)
State.regs[OP[1]] = 0x7fffffff;
trace_output (OP_IMM_REG);
}
/* satsubr reg,reg */
void
OP_80 ()
{
unsigned int op0, op1, result, z, s, cy, ov, sat;
trace_input ("satsubr", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 - op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (result < op0);
ov = ((op1 & 0x80000000) != (op0 & 0x80000000)
&& (op1 & 0x80000000) != (result & 0x80000000));
sat = ov;
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0) | (ov ? PSW_OV : 0)
| (sat ? PSW_SAT : 0));
/* Handle saturated results. */
if (sat && s)
State.regs[OP[1]] = 0x80000000;
else if (sat)
State.regs[OP[1]] = 0x7fffffff;
trace_output (OP_REG_REG);
}
/* tst reg,reg */
void
OP_160 ()
{
unsigned int op0, op1, result, z, s;
trace_input ("tst", OP_REG_REG_CMP, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 & op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the condition codes. */
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0));
trace_output (OP_REG_REG_CMP);
}
/* mov reg, reg */
void
OP_0 ()
{
trace_input ("mov", OP_REG_REG_MOVE, 0);
State.regs[OP[1]] = State.regs[OP[0]];
trace_output (OP_REG_REG_MOVE);
}
/* mov sign_extend(imm5), reg */
void
OP_200 ()
{
int value = SEXT5 (OP[0]);
trace_input ("mov", OP_IMM_REG_MOVE, 0);
State.regs[OP[1]] = value;
trace_output (OP_IMM_REG_MOVE);
}
/* movea sign_extend(imm16), reg, reg */
void
OP_620 ()
{
int value = SEXT16 (OP[0]);
trace_input ("movea", OP_IMM_REG_REG, 0);
State.regs[OP[2]] = State.regs[OP[1]] + value;
trace_output (OP_IMM_REG_REG);
}
/* movhi imm16, reg, reg */
void
OP_640 ()
{
uint32 value = (OP[0] & 0xffff) << 16;
trace_input ("movhi", OP_UIMM_REG_REG, 16);
State.regs[OP[2]] = State.regs[OP[1]] + value;
trace_output (OP_UIMM_REG_REG);
}
/* sar zero_extend(imm5),reg1 */
void
OP_2A0 ()
{
unsigned int op0, op1, result, z, s, cy;
trace_input ("sar", OP_IMM_REG, 0);
op0 = OP[0] & 0x1f;
op1 = State.regs[OP[1]];
result = (signed)op1 >> op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 & (1 << (op0 - 1)));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV | PSW_CY);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0));
trace_output (OP_IMM_REG);
}
/* sar reg1, reg2 */
void
OP_A007E0 ()
{
unsigned int op0, op1, result, z, s, cy;
trace_input ("sar", OP_REG_REG, 0);
op0 = State.regs[OP[0]] & 0x1f;
op1 = State.regs[OP[1]];
result = (signed)op1 >> op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 & (1 << (op0 - 1)));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV | PSW_CY);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0));
trace_output (OP_REG_REG);
}
/* shl zero_extend(imm5),reg1 */
void
OP_2C0 ()
{
unsigned int op0, op1, result, z, s, cy;
trace_input ("shl", OP_IMM_REG, 0);
op0 = OP[0] & 0x1f;
op1 = State.regs[OP[1]];
result = op1 << op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 & (1 << (32 - op0)));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV | PSW_CY);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0));
trace_output (OP_IMM_REG);
}
/* shl reg1, reg2 */
void
OP_C007E0 ()
{
unsigned int op0, op1, result, z, s, cy;
trace_input ("shl", OP_REG_REG, 0);
op0 = State.regs[OP[0]] & 0x1f;
op1 = State.regs[OP[1]];
result = op1 << op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 & (1 << (32 - op0)));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV | PSW_CY);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0));
trace_output (OP_REG_REG);
}
/* shr zero_extend(imm5),reg1 */
void
OP_280 ()
{
unsigned int op0, op1, result, z, s, cy;
trace_input ("shr", OP_IMM_REG, 0);
op0 = OP[0] & 0x1f;
op1 = State.regs[OP[1]];
result = op1 >> op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 & (1 << (op0 - 1)));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV | PSW_CY);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0));
trace_output (OP_IMM_REG);
}
/* shr reg1, reg2 */
void
OP_8007E0 ()
{
unsigned int op0, op1, result, z, s, cy;
trace_input ("shr", OP_REG_REG, 0);
op0 = State.regs[OP[0]] & 0x1f;
op1 = State.regs[OP[1]];
result = op1 >> op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
cy = (op1 & (1 << (op0 - 1)));
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV | PSW_CY);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0)
| (cy ? PSW_CY : 0));
trace_output (OP_REG_REG);
}
/* or reg, reg */
void
OP_100 ()
{
unsigned int op0, op1, result, z, s;
trace_input ("or", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 | op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0));
trace_output (OP_REG_REG);
}
/* ori zero_extend(imm16), reg, reg */
void
OP_680 ()
{
unsigned int op0, op1, result, z, s;
trace_input ("ori", OP_UIMM_REG_REG, 0);
op0 = OP[0] & 0xffff;
op1 = State.regs[OP[1]];
result = op0 | op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the result and condition codes. */
State.regs[OP[2]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0));
trace_output (OP_UIMM_REG_REG);
}
/* and reg, reg */
void
OP_140 ()
{
unsigned int op0, op1, result, z, s;
trace_input ("and", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 & op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0));
trace_output (OP_REG_REG);
}
/* andi zero_extend(imm16), reg, reg */
void
OP_6C0 ()
{
unsigned int op0, op1, result, z;
trace_input ("andi", OP_UIMM_REG_REG, 0);
op0 = OP[0] & 0xffff;
op1 = State.regs[OP[1]];
result = op0 & op1;
/* Compute the condition codes. */
z = (result == 0);
/* Store the result and condition codes. */
State.regs[OP[2]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= (z ? PSW_Z : 0);
trace_output (OP_UIMM_REG_REG);
}
/* xor reg, reg */
void
OP_120 ()
{
unsigned int op0, op1, result, z, s;
trace_input ("xor", OP_REG_REG, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
op1 = State.regs[OP[1]];
result = op0 ^ op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0));
trace_output (OP_REG_REG);
}
/* xori zero_extend(imm16), reg, reg */
void
OP_6A0 ()
{
unsigned int op0, op1, result, z, s;
trace_input ("xori", OP_UIMM_REG_REG, 0);
op0 = OP[0] & 0xffff;
op1 = State.regs[OP[1]];
result = op0 ^ op1;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the result and condition codes. */
State.regs[OP[2]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0));
trace_output (OP_UIMM_REG_REG);
}
/* not reg1, reg2 */
void
OP_20 ()
{
unsigned int op0, result, z, s;
trace_input ("not", OP_REG_REG_MOVE, 0);
/* Compute the result. */
op0 = State.regs[OP[0]];
result = ~op0;
/* Compute the condition codes. */
z = (result == 0);
s = (result & 0x80000000);
/* Store the result and condition codes. */
State.regs[OP[1]] = result;
PSW &= ~(PSW_Z | PSW_S | PSW_OV);
PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0));
trace_output (OP_REG_REG_MOVE);
}
/* set1 */
void
OP_7C0 ()
{
unsigned int op0, op1, op2;
int temp;
trace_input ("set1", OP_BIT, 0);
op0 = State.regs[OP[0]];
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
temp = load_mem (op0 + op2, 1);
PSW &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
PSW |= PSW_Z;
temp |= (1 << op1);
store_mem (op0 + op2, 1, temp);
trace_output (OP_BIT);
}
/* not1 */
void
OP_47C0 ()
{
unsigned int op0, op1, op2;
int temp;
trace_input ("not1", OP_BIT, 0);
op0 = State.regs[OP[0]];
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
temp = load_mem (op0 + op2, 1);
PSW &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
PSW |= PSW_Z;
temp ^= (1 << op1);
store_mem (op0 + op2, 1, temp);
trace_output (OP_BIT);
}
/* clr1 */
void
OP_87C0 ()
{
unsigned int op0, op1, op2;
int temp;
trace_input ("clr1", OP_BIT, 0);
op0 = State.regs[OP[0]];
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
temp = load_mem (op0 + op2, 1);
PSW &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
PSW |= PSW_Z;
temp &= ~(1 << op1);
store_mem (op0 + op2, 1, temp);
trace_output (OP_BIT);
}
/* tst1 */
void
OP_C7C0 ()
{
unsigned int op0, op1, op2;
int temp;
trace_input ("tst1", OP_BIT, 0);
op0 = State.regs[OP[0]];
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
temp = load_mem (op0 + op2, 1);
PSW &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
PSW |= PSW_Z;
trace_output (OP_BIT);
}
/* breakpoint */
void
OP_FFFF ()
{
State.exception = SIGTRAP;
PC -= 4;
}
/* di */
void
OP_16007E0 ()
{
trace_input ("di", OP_NONE, 0);
PSW |= PSW_ID;
trace_output (OP_NONE);
}
/* ei */
void
OP_16087E0 ()
{
trace_input ("ei", OP_NONE, 0);
PSW &= ~PSW_ID;
trace_output (OP_NONE);
}
/* halt */
void
OP_12007E0 ()
{
trace_input ("halt", OP_NONE, 0);
/* FIXME this should put processor into a mode where NMI still handled */
State.exception = SIGQUIT;
trace_output (OP_NONE);
}
/* reti */
void
OP_14007E0 ()
{
trace_input ("reti", OP_NONE, 0);
trace_output (OP_NONE);
/* Restore for NMI if only NP on, otherwise is interrupt or exception. */
if ((PSW & (PSW_NP | PSW_EP)) == PSW_NP)
{
PC = FEPC - 4;
PSW = FEPSW;
}
else
{
PC = EIPC - 4;
PSW = EIPSW;
}
}
/* trap */
void
OP_10007E0 ()
{
trace_input ("trap", OP_TRAP, 0);
trace_output (OP_TRAP);
/* Trap 31 is used for simulating OS I/O functions */
if (OP[0] == 31)
{
int save_errno = errno;
errno = 0;
/* Registers passed to trap 0 */
#define FUNC State.regs[6] /* function number, return value */
#define PARM1 State.regs[7] /* optional parm 1 */
#define PARM2 State.regs[8] /* optional parm 2 */
#define PARM3 State.regs[9] /* optional parm 3 */
/* Registers set by trap 0 */
#define RETVAL State.regs[10] /* return value */
#define RETERR State.regs[11] /* return error code */
/* Turn a pointer in a register into a pointer into real memory. */
#define MEMPTR(x) (map (x))
switch (FUNC)
{
#if !defined(__GO32__) && !defined(_WIN32)
case SYS_fork:
RETVAL = fork ();
break;
case SYS_execve:
RETVAL = execve (MEMPTR (PARM1), (char **) MEMPTR (PARM2),
(char **)MEMPTR (PARM3));
break;
case SYS_execv:
RETVAL = execve (MEMPTR (PARM1), (char **) MEMPTR (PARM2), NULL);
break;
#if 0
case SYS_pipe:
{
reg_t buf;
int host_fd[2];
buf = PARM1;
RETVAL = pipe (host_fd);
SW (buf, host_fd[0]);
buf += sizeof(uint16);
SW (buf, host_fd[1]);
}
break;
case SYS_wait:
{
int status;
RETVAL = wait (&status);
SW (PARM1, status);
}
break;
#endif
#endif
case SYS_read:
RETVAL = v850_callback->read (v850_callback, PARM1, MEMPTR (PARM2),
PARM3);
break;
case SYS_write:
if (PARM1 == 1)
RETVAL = (int)v850_callback->write_stdout (v850_callback,
MEMPTR (PARM2), PARM3);
else
RETVAL = (int)v850_callback->write (v850_callback, PARM1,
MEMPTR (PARM2), PARM3);
break;
case SYS_lseek:
RETVAL = v850_callback->lseek (v850_callback, PARM1, PARM2, PARM3);
break;
case SYS_close:
RETVAL = v850_callback->close (v850_callback, PARM1);
break;
case SYS_open:
RETVAL = v850_callback->open (v850_callback, MEMPTR (PARM1), PARM2);
break;
case SYS_exit:
/* EXIT - caller can look in PARM1 to work out the
reason */
State.exception = SIG_V850_EXIT;
break;
case SYS_stat: /* added at hmsi */
/* stat system call */
{
struct stat host_stat;
reg_t buf;
RETVAL = stat (MEMPTR (PARM1), &host_stat);
buf = PARM2;
/* Just wild-assed guesses. */
store_mem (buf, 2, host_stat.st_dev);
store_mem (buf + 2, 2, host_stat.st_ino);
store_mem (buf + 4, 4, host_stat.st_mode);
store_mem (buf + 8, 2, host_stat.st_nlink);
store_mem (buf + 10, 2, host_stat.st_uid);
store_mem (buf + 12, 2, host_stat.st_gid);
store_mem (buf + 14, 2, host_stat.st_rdev);
store_mem (buf + 16, 4, host_stat.st_size);
store_mem (buf + 20, 4, host_stat.st_atime);
store_mem (buf + 28, 4, host_stat.st_mtime);
store_mem (buf + 36, 4, host_stat.st_ctime);
}
break;
case SYS_chown:
RETVAL = chown (MEMPTR (PARM1), PARM2, PARM3);
break;
case SYS_chmod:
RETVAL = chmod (MEMPTR (PARM1), PARM2);
break;
case SYS_time:
{
time_t now;
RETVAL = time (&now);
store_mem (PARM1, 4, now);
}
break;
case SYS_times:
{
struct tms tms;
RETVAL = times (&tms);
store_mem (PARM1, 4, tms.tms_utime);
store_mem (PARM1 + 4, 4, tms.tms_stime);
store_mem (PARM1 + 8, 4, tms.tms_cutime);
store_mem (PARM1 + 12, 4, tms.tms_cstime);
break;
}
case SYS_gettimeofday:
{
struct timeval t;
struct timezone tz;
RETVAL = gettimeofday (&t, &tz);
store_mem (PARM1, 4, t.tv_sec);
store_mem (PARM1 + 4, 4, t.tv_usec);
store_mem (PARM2, 4, tz.tz_minuteswest);
store_mem (PARM2 + 4, 4, tz.tz_dsttime);
break;
}
case SYS_utime:
/* Cast the second argument to void *, to avoid type mismatch
if a prototype is present. */
RETVAL = utime (MEMPTR (PARM1), (void *) MEMPTR (PARM2));
break;
default:
abort ();
}
RETERR = errno;
errno = save_errno;
}
else
{ /* Trap 0 -> 30 */
EIPC = PC + 4;
EIPSW = PSW;
/* Mask out EICC */
ECR &= 0xffff0000;
ECR |= 0x40 + OP[0];
/* Flag that we are now doing exception processing. */
PSW |= PSW_EP | PSW_ID;
PC = ((OP[0] < 0x10) ? 0x40 : 0x50) - 4;
}
}
/* ldsr, reg,reg */
void
OP_2007E0 ()
{
unsigned int op0;
trace_input ("ldsr", OP_LDSR, 0);
op0 = State.regs[OP[0]];
State.sregs[OP[1]] = op0;
trace_output (OP_LDSR);
}
/* stsr */
void
OP_4007E0 ()
{
unsigned int op0;
trace_input ("stsr", OP_STSR, 0);
op0 = State.sregs[OP[1]];
State.regs[OP[0]] = op0;
trace_output (OP_STSR);
}
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