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authorStu Grossman <grossman@cygnus>1996-10-24 17:39:30 +0000
committerStu Grossman <grossman@cygnus>1996-10-24 17:39:30 +0000
commit968519095a3386323bb7ef7f88583e6ed902e691 (patch)
tree9d68fdba03f4a9d8de08e5361f9b5655c43e8437 /sim/v850/simops.c
parent139e2c0f92e06fcca01a815614c46a53e93a2f55 (diff)
downloadgdb-968519095a3386323bb7ef7f88583e6ed902e691.zip
gdb-968519095a3386323bb7ef7f88583e6ed902e691.tar.gz
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* Makefile.in: Get rid of srcroot. Set all INSTALL macros via
autoconf. * gencode.c (write_opcodes): Pad operands field to account for MSVC braindamage. * simops.c: Include errno.h. Exclude SYS_chown, since MSVC doesn't support it. (Why is this here in the first place?!?) * v850_sim.h: Get rid of 64 bit defs. Also, get rid of #elif's. Change number of operands in struct simops from 9 to 6. Define SIGTRAP and SIGQUIT for MSVC.
Diffstat (limited to 'sim/v850/simops.c')
-rw-r--r--sim/v850/simops.c78
1 files changed, 46 insertions, 32 deletions
diff --git a/sim/v850/simops.c b/sim/v850/simops.c
index 0b92c89..31fa244 100644
--- a/sim/v850/simops.c
+++ b/sim/v850/simops.c
@@ -3,6 +3,7 @@
#include "simops.h"
#include "sys/syscall.h"
#include "bfd.h"
+#include <errno.h>
enum op_types {
OP_UNKNOWN,
@@ -150,7 +151,7 @@ trace_input (name, type, size)
case OP_IMM_REG:
case OP_IMM_REG_CMP:
case OP_IMM_REG_MOVE:
- sprintf (buf, "%d,r%d", OP[1], OP[0]);
+ sprintf (buf, "%d,r%d", OP[0], OP[1]);
break;
case OP_COND_BR:
@@ -166,11 +167,11 @@ trace_input (name, type, size)
break;
case OP_LOAD32:
- sprintf (buf, "%d[r%d],r%d", SEXT16 (OP[2]), OP[0], OP[1]);
+ 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]), OP[0]);
+ sprintf (buf, "r%d,%d[r%d]", OP[1], SEXT16 (OP[2] & ~0x1), OP[0]);
break;
case OP_JUMP:
@@ -424,7 +425,7 @@ OP_300 ()
temp = OP[1];
temp = SEXT7 (temp);
op2 = temp;
- result = get_byte (State.mem + State.regs[30] + op2);
+ result = load_mem (State.regs[30] + op2, 1);
State.regs[OP[0]] = SEXT8 (result);
trace_output (OP_LOAD16);
}
@@ -440,7 +441,7 @@ OP_400 ()
temp = OP[1];
temp = SEXT7 (temp);
op2 = temp << 1;
- result = get_half (State.mem + State.regs[30] + op2);
+ result = load_mem (State.regs[30] + op2, 2);
State.regs[OP[0]] = SEXT16 (result);
trace_output (OP_LOAD16);
}
@@ -456,7 +457,7 @@ OP_500 ()
temp = OP[1];
temp = SEXT7 (temp);
op2 = temp << 2;
- result = get_word (State.mem + State.regs[30] + op2);
+ result = load_mem (State.regs[30] + op2, 4);
State.regs[OP[0]] = result;
trace_output (OP_LOAD16);
}
@@ -473,7 +474,7 @@ OP_380 ()
temp = OP[1];
temp = SEXT7 (temp);
op1 = temp;
- put_byte (State.mem + State.regs[30] + op1, op0);
+ store_mem (State.regs[30] + op1, 1, op0);
trace_output (OP_STORE16);
}
@@ -489,7 +490,7 @@ OP_480 ()
temp = OP[1];
temp = SEXT7 (temp);
op1 = temp << 1;
- put_half (State.mem + State.regs[30] + op1, op0);
+ store_mem (State.regs[30] + op1, 2, op0);
trace_output (OP_STORE16);
}
@@ -505,7 +506,7 @@ OP_501 ()
temp = OP[1];
temp = SEXT7 (temp);
op1 = temp << 2;
- put_word (State.mem + State.regs[30] + op1, op0);
+ store_mem (State.regs[30] + op1, 4, op0);
trace_output (OP_STORE16);
}
@@ -520,7 +521,7 @@ OP_700 ()
op0 = State.regs[OP[0]];
temp = SEXT16 (OP[2]);
op2 = temp;
- result = get_byte (State.mem + op0 + op2);
+ result = load_mem (op0 + op2, 1);
State.regs[OP[1]] = SEXT8 (result);
trace_output (OP_LOAD32);
}
@@ -537,7 +538,7 @@ OP_720 ()
temp = SEXT16 (OP[2]);
temp &= ~0x1;
op2 = temp;
- result = get_half (State.mem + op0 + op2);
+ result = load_mem (op0 + op2, 2);
State.regs[OP[1]] = SEXT16 (result);
trace_output (OP_LOAD32);
}
@@ -554,7 +555,7 @@ OP_10720 ()
temp = SEXT16 (OP[2]);
temp &= ~0x1;
op2 = temp;
- result = get_word (State.mem + op0 + op2);
+ result = load_mem (op0 + op2, 4);
State.regs[OP[1]] = result;
trace_output (OP_LOAD32);
}
@@ -571,7 +572,7 @@ OP_740 ()
op1 = State.regs[OP[1]];
temp = SEXT16 (OP[2]);
op2 = temp;
- put_byte (State.mem + op0 + op2, op1);
+ store_mem (op0 + op2, 1, op1);
trace_output (OP_STORE32);
}
@@ -587,7 +588,7 @@ OP_760 ()
op1 = State.regs[OP[1]];
temp = SEXT16 (OP[2] & ~0x1);
op2 = temp;
- put_half (State.mem + op0 + op2, op1);
+ store_mem (op0 + op2, 2, op1);
trace_output (OP_STORE32);
}
@@ -603,7 +604,7 @@ OP_10760 ()
op1 = State.regs[OP[1]];
temp = SEXT16 (OP[2] & ~0x1);
op2 = temp;
- put_word (State.mem + op0 + op2, op1);
+ store_mem (op0 + op2, 4, op1);
trace_output (OP_STORE32);
}
@@ -1828,12 +1829,12 @@ OP_7C0 ()
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
- temp = get_byte (State.mem + op0 + op2);
+ temp = load_mem (op0 + op2, 1);
State.sregs[5] &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
State.sregs[5] |= PSW_Z;
temp |= (1 << op1);
- put_byte (State.mem + op0 + op2, temp);
+ store_mem (op0 + op2, 1, temp);
trace_output (OP_BIT);
}
@@ -1849,12 +1850,12 @@ OP_47C0 ()
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
- temp = get_byte (State.mem + op0 + op2);
+ temp = load_mem (op0 + op2, 1);
State.sregs[5] &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
State.sregs[5] |= PSW_Z;
temp ^= (1 << op1);
- put_byte (State.mem + op0 + op2, temp);
+ store_mem (op0 + op2, 1, temp);
trace_output (OP_BIT);
}
@@ -1870,12 +1871,12 @@ OP_87C0 ()
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
- temp = get_byte (State.mem + op0 + op2);
+ temp = load_mem (op0 + op2, 1);
State.sregs[5] &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
State.sregs[5] |= PSW_Z;
temp &= ~(1 << op1);
- put_byte (State.mem + op0 + op2, temp);
+ store_mem (op0 + op2, 1, temp);
trace_output (OP_BIT);
}
@@ -1891,7 +1892,7 @@ OP_C7C0 ()
op1 = OP[1] & 0x7;
temp = SEXT16 (OP[2]);
op2 = temp;
- temp = get_byte (State.mem + op0 + op2);
+ temp = load_mem (op0 + op2, 1);
State.sregs[5] &= ~PSW_Z;
if ((temp & (1 << op1)) == 0)
State.sregs[5] |= PSW_Z;
@@ -1939,7 +1940,17 @@ OP_14007E0 ()
{
trace_input ("reti", OP_NONE, 0);
trace_output (OP_NONE);
- abort ();
+
+ if ((State.sregs[5] & (PSW_NP | PSW_EP)) == PSW_NP)
+ { /* Only NP is on */
+ PC = State.sregs[2] - 4; /* FEPC */
+ State.sregs[5] = State.sregs[3]; /* FEPSW */
+ }
+ else
+ {
+ PC = State.sregs[0] - 4; /* EIPC */
+ State.sregs[5] = State.sregs[1]; /* EIPSW */
+ }
}
/* trap, not supportd */
@@ -1951,9 +1962,9 @@ OP_10007E0 ()
trace_input ("trap", OP_TRAP, 0);
trace_output (OP_TRAP);
- /* Trap 0 is used for simulating low-level I/O */
+ /* Trap 31 is used for simulating OS I/O functions */
- if (OP[0] == 0)
+ if (OP[0] == 31)
{
int save_errno = errno;
errno = 0;
@@ -1972,8 +1983,7 @@ OP_10007E0 ()
/* Turn a pointer in a register into a pointer into real memory. */
-#define MEMPTR(x) ((char *)((x) + State.mem))
-
+#define MEMPTR(x) (map (x))
switch (FUNC)
{
@@ -2069,12 +2079,12 @@ OP_10007E0 ()
SLW (buf+28, host_stat.st_mtime);
SLW (buf+36, host_stat.st_ctime);
}
-#endif
break;
case SYS_chown:
RETVAL = chown (MEMPTR (PARM1), PARM2, PARM3);
break;
+#endif
case SYS_chmod:
RETVAL = chmod (MEMPTR (PARM1), PARM2);
break;
@@ -2089,10 +2099,14 @@ OP_10007E0 ()
RETERR = errno;
errno = save_errno;
}
- else if (OP[0] == 1 )
- {
- char *fstr = State.regs[2] + State.mem;
- puts (fstr);
+ else
+ { /* Trap 0 -> 30 */
+ State.sregs[0] = PC + 4; /* EIPC */
+ State.sregs[1] = State.sregs[5]; /* EIPSW */
+ State.sregs[4] &= 0xffff0000; /* Mask out EICC */
+ State.sregs[4] |= 0x40 + OP[0]; /* EICC */
+ State.sregs[5] |= PSW_EP | PSW_ID; /* Now doing exception processing */
+ PC = ((OP[0] < 0x10) ? 0x40 : 0x50) - 4;
}
}