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[PATCH 2/4] sim: d10v: convert to common sim engine logic [committed]
- From: Mike Frysinger <vapier at gentoo dot org>
- To: gdb-patches at sourceware dot org
- Date: Sun, 15 Nov 2015 20:48:30 -0500
- Subject: [PATCH 2/4] sim: d10v: convert to common sim engine logic [committed]
- Authentication-results: sourceware.org; auth=none
- References: <1447638512-31018-1-git-send-email-vapier at gentoo dot org>
Now that we have access to the sim state everywhere, we can convert to
the common engine logic for overall processing. This frees us up from
tracking exception state ourselves.
---
sim/d10v/ChangeLog | 30 +++++++++
sim/d10v/Makefile.in | 3 +
sim/d10v/d10v_sim.h | 2 -
sim/d10v/interp.c | 177 +++++++++++++++++----------------------------------
sim/d10v/simops.c | 143 +++++++++++++----------------------------
5 files changed, 137 insertions(+), 218 deletions(-)
diff --git a/sim/d10v/ChangeLog b/sim/d10v/ChangeLog
index 2db4312..e26ef6c 100644
--- a/sim/d10v/ChangeLog
+++ b/sim/d10v/ChangeLog
@@ -1,5 +1,35 @@
2015-11-15 Mike Frysinger <vapier@gentoo.org>
+ * Makefile.in (SIM_OBJS): Add sim-reason.o, sim-resume.o, and
+ sim-stop.o.
+ * d10v_sim.h (struct d10v_memory): Delete fault member.
+ (struct _state): Delete exception member.
+ * interp.c (lookup_hash): Call sim_engine_halt instead of setting
+ State.exception.
+ (do_2_short, do_parallel): Delete State.exception checks.
+ (sim_size): Mark static.
+ (map_memory): Call sim_engine_halt instead of returning fault.
+ Call xcalloc instead of calloc and checking the return.
+ (dmem_addr): Call sim_engine_halt when phys_size is 0.
+ (imem_addr): Likewise.
+ (stop_simulator, sim_stop, sim_stop_reason): Delete.
+ (sim_resume): Rename to ...
+ (step_once): ... this. Delete State.exception code and move
+ siggnal checking to sim_engine_run.
+ (sim_engine_run): New function.
+ * simops.c (EXCEPTION): Define.
+ (move_to_cr): Call EXCEPTION instead of setting State.exception.
+ (OP_30000000, OP_6401, OP_6001, OP_6000, OP_32010000, OP_31000000,
+ OP_6601, OP_6201, OP_6200, OP_33010000, OP_5201, OP_27000000,
+ OP_2F000000, OP_3220, OP_3200, OP_3400, OP_3000, OP_34000000,
+ OP_6800, OP_6C1F, OP_6801, OP_6C01, OP_36010000, OP_35000000,
+ OP_6A00, OP_6E1F, OP_6A01, OP_6E01, OP_37010000, OP_5FE0): Likewise.
+ (OP_5F20): Call sim_engine_halt instead of setting State.exception.
+ (OP_5F00): Call sim_engine_halt and EXCEPTION instead of setting
+ State.exception.
+
+2015-11-15 Mike Frysinger <vapier@gentoo.org>
+
* d10v_sim.h (struct simops): Add SIM_DESC and SIM_CPU to func args.
(SET_CREG, SET_HW_CREG, SET_PSW_BIT): Pass sd and cpu to move_to_cr.
(dmem_addr, imem_addr, move_to_cr): Add SIM_DESC and SIM_CPU args.
diff --git a/sim/d10v/Makefile.in b/sim/d10v/Makefile.in
index 27b0008..a6100de 100644
--- a/sim/d10v/Makefile.in
+++ b/sim/d10v/Makefile.in
@@ -21,6 +21,9 @@ SIM_OBJS = \
interp.o \
$(SIM_NEW_COMMON_OBJS) \
sim-hload.o \
+ sim-reason.o \
+ sim-resume.o \
+ sim-stop.o \
table.o \
simops.o \
endian.o
diff --git a/sim/d10v/d10v_sim.h b/sim/d10v/d10v_sim.h
index ed2bbbb..e2d2111 100644
--- a/sim/d10v/d10v_sim.h
+++ b/sim/d10v/d10v_sim.h
@@ -226,7 +226,6 @@ struct d10v_memory
uint8 *insn[IMEM_SEGMENTS];
uint8 *data[DMEM_SEGMENTS];
uint8 *unif[UMEM_SEGMENTS];
- uint8 fault[16];
};
struct _state
@@ -262,7 +261,6 @@ struct _state
} trace;
uint8 exe;
- int exception;
int pc_changed;
/* NOTE: everything below this line is not reset by
diff --git a/sim/d10v/interp.c b/sim/d10v/interp.c
index df8b929..263156e 100644
--- a/sim/d10v/interp.c
+++ b/sim/d10v/interp.c
@@ -79,11 +79,7 @@ lookup_hash (SIM_DESC sd, SIM_CPU *cpu, uint32 ins, int size)
while ((ins & h->mask) != h->opcode || h->size != size)
{
if (h->next == NULL)
- {
- State.exception = GDB_SIGNAL_ILL;
- State.pc_changed = 1; /* Don't increment the PC. */
- return NULL;
- }
+ sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, SIM_SIGILL);
h = h->next;
}
return (h);
@@ -159,7 +155,7 @@ do_2_short (SIM_DESC sd, SIM_CPU *cpu, uint16 ins1, uint16 ins2, enum _leftright
(h->ops->func) (sd, cpu);
/* Issue the second instruction (if the PC hasn't changed) */
- if (!State.pc_changed && !State.exception)
+ if (!State.pc_changed)
{
/* finish any existing instructions */
SLOT_FLUSH ();
@@ -172,7 +168,7 @@ do_2_short (SIM_DESC sd, SIM_CPU *cpu, uint16 ins1, uint16 ins2, enum _leftright
ins_type_counters[ (int)INS_CYCLES ]++;
(h->ops->func) (sd, cpu);
}
- else if (!State.exception)
+ else
ins_type_counters[ (int)INS_COND_JUMP ]++;
}
@@ -232,13 +228,10 @@ do_parallel (SIM_DESC sd, SIM_CPU *cpu, uint16 ins1, uint16 ins2)
State.ins_type = INS_LEFT_PARALLEL;
ins_type_counters[ (int)State.ins_type ]++;
(h1->ops->func) (sd, cpu);
- if (!State.exception)
- {
- get_operands (h2->ops, ins2);
- State.ins_type = INS_RIGHT_PARALLEL;
- ins_type_counters[ (int)State.ins_type ]++;
- (h2->ops->func) (sd, cpu);
- }
+ get_operands (h2->ops, ins2);
+ State.ins_type = INS_RIGHT_PARALLEL;
+ ins_type_counters[ (int)State.ins_type ]++;
+ (h2->ops->func) (sd, cpu);
}
}
@@ -262,7 +255,7 @@ add_commas (char *buf, int sizeof_buf, unsigned long value)
return endbuf;
}
-void
+static void
sim_size (int power)
{
int i;
@@ -655,18 +648,11 @@ map_memory (SIM_DESC sd, SIM_CPU *cpu, unsigned phys_addr)
default:
/* OOPS! */
last_segname = "scrap";
- return State.mem.fault;
+ sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, SIM_SIGBUS);
}
if (*memory == NULL)
- {
- *memory = calloc (1, SEGMENT_SIZE);
- if (*memory == NULL)
- {
- (*d10v_callback->printf_filtered) (d10v_callback, "Malloc failed.\n");
- return State.mem.fault;
- }
- }
+ *memory = xcalloc (1, SEGMENT_SIZE);
offset = (phys_addr % SEGMENT_SIZE);
raw = *memory + offset;
@@ -893,11 +879,8 @@ dmem_addr (SIM_DESC sd, SIM_CPU *cpu, uint16 offset)
phys_size = sim_d10v_translate_dmap_addr (sd, cpu, offset, 1, &phys, NULL,
dmap_register);
if (phys_size == 0)
- {
- mem = State.mem.fault;
- }
- else
- mem = map_memory (sd, cpu, phys);
+ sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, SIM_SIGBUS);
+ mem = map_memory (sd, cpu, phys);
#ifdef DEBUG
if ((d10v_debug & DEBUG_MEMORY))
{
@@ -920,9 +903,7 @@ imem_addr (SIM_DESC sd, SIM_CPU *cpu, uint32 offset)
int phys_size = sim_d10v_translate_imap_addr (sd, cpu, offset, 1, &phys, NULL,
imap_register);
if (phys_size == 0)
- {
- return State.mem.fault;
- }
+ sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, SIM_SIGBUS);
mem = map_memory (sd, cpu, phys);
#ifdef DEBUG
if ((d10v_debug & DEBUG_MEMORY))
@@ -938,60 +919,15 @@ imem_addr (SIM_DESC sd, SIM_CPU *cpu, uint32 offset)
return mem;
}
-static int stop_simulator = 0;
-
-int
-sim_stop (SIM_DESC sd)
-{
- stop_simulator = 1;
- return 1;
-}
-
-
-/* Run (or resume) the program. */
-void
-sim_resume (SIM_DESC sd, int step, int siggnal)
+static void
+step_once (SIM_DESC sd, SIM_CPU *cpu)
{
- SIM_CPU *cpu = STATE_CPU (sd, 0);
uint32 inst;
uint8 *iaddr;
-/* (*d10v_callback->printf_filtered) (d10v_callback, "sim_resume (%d,%d) PC=0x%x\n",step,siggnal,PC); */
- State.exception = 0;
- if (step)
- sim_stop (sd);
-
- switch (siggnal)
- {
- case 0:
- break;
- case GDB_SIGNAL_BUS:
- SET_BPC (PC);
- SET_BPSW (PSW);
- SET_HW_PSW ((PSW & (PSW_F0_BIT | PSW_F1_BIT | PSW_C_BIT)));
- JMP (AE_VECTOR_START);
- SLOT_FLUSH ();
- break;
- case GDB_SIGNAL_ILL:
- SET_BPC (PC);
- SET_BPSW (PSW);
- SET_HW_PSW ((PSW & (PSW_F0_BIT | PSW_F1_BIT | PSW_C_BIT)));
- JMP (RIE_VECTOR_START);
- SLOT_FLUSH ();
- break;
- default:
- /* just ignore it */
- break;
- }
-
- do
+ /* TODO: Unindent this block. */
{
iaddr = imem_addr (sd, cpu, (uint32)PC << 2);
- if (iaddr == State.mem.fault)
- {
- State.exception = GDB_SIGNAL_BUS;
- break;
- }
inst = get_longword( iaddr );
@@ -1058,10 +994,49 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
/* Writeback all the DATA / PC changes */
SLOT_FLUSH ();
}
- while ( !State.exception && !stop_simulator);
-
- if (step && !State.exception)
- State.exception = GDB_SIGNAL_TRAP;
+}
+
+void
+sim_engine_run (SIM_DESC sd,
+ int next_cpu_nr, /* ignore */
+ int nr_cpus, /* ignore */
+ int siggnal)
+{
+ sim_cpu *cpu;
+
+ SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
+
+ cpu = STATE_CPU (sd, 0);
+
+ switch (siggnal)
+ {
+ case 0:
+ break;
+ case GDB_SIGNAL_BUS:
+ SET_BPC (PC);
+ SET_BPSW (PSW);
+ SET_HW_PSW ((PSW & (PSW_F0_BIT | PSW_F1_BIT | PSW_C_BIT)));
+ JMP (AE_VECTOR_START);
+ SLOT_FLUSH ();
+ break;
+ case GDB_SIGNAL_ILL:
+ SET_BPC (PC);
+ SET_BPSW (PSW);
+ SET_HW_PSW ((PSW & (PSW_F0_BIT | PSW_F1_BIT | PSW_C_BIT)));
+ JMP (RIE_VECTOR_START);
+ SLOT_FLUSH ();
+ break;
+ default:
+ /* just ignore it */
+ break;
+ }
+
+ while (1)
+ {
+ step_once (sd, cpu);
+ if (sim_events_tick (sd))
+ sim_events_process (sd);
+ }
}
void
@@ -1226,40 +1201,6 @@ sim_create_inferior (SIM_DESC sd, struct bfd *abfd, char **argv, char **env)
return SIM_RC_OK;
}
-void
-sim_stop_reason (SIM_DESC sd, enum sim_stop *reason, int *sigrc)
-{
-/* (*d10v_callback->printf_filtered) (d10v_callback, "sim_stop_reason: PC=0x%x\n",PC<<2); */
-
- switch (State.exception)
- {
- case SIG_D10V_STOP: /* stop instruction */
- *reason = sim_exited;
- *sigrc = 0;
- break;
-
- case SIG_D10V_EXIT: /* exit trap */
- *reason = sim_exited;
- *sigrc = GPR (0);
- break;
-
- case SIG_D10V_BUS:
- *reason = sim_stopped;
- *sigrc = GDB_SIGNAL_BUS;
- break;
-
- default: /* some signal */
- *reason = sim_stopped;
- if (stop_simulator && !State.exception)
- *sigrc = GDB_SIGNAL_INT;
- else
- *sigrc = State.exception;
- break;
- }
-
- stop_simulator = 0;
-}
-
int
sim_fetch_register (SIM_DESC sd, int rn, unsigned char *memory, int length)
{
diff --git a/sim/d10v/simops.c b/sim/d10v/simops.c
index 28044f6..6eb1a20 100644
--- a/sim/d10v/simops.c
+++ b/sim/d10v/simops.c
@@ -15,6 +15,8 @@
#include "simops.h"
#include "targ-vals.h"
+#define EXCEPTION(sig) sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, sig)
+
enum op_types {
OP_VOID,
OP_REG,
@@ -92,7 +94,7 @@ move_to_cr (SIM_DESC sd, SIM_CPU *cpu, int cr, reg_t mask, reg_t val, int psw_hw
(d10v_callback,
"ERROR at PC 0x%x: ST can only be set when FX is set.\n",
PC<<2);
- State.exception = SIGILL;
+ EXCEPTION (SIM_SIGILL);
}
}
/* keep an up-to-date psw around for tracing */
@@ -1138,9 +1140,7 @@ OP_5F20 (SIM_DESC sd, SIM_CPU *cpu)
trace_output_void (sd);
}
else
- {
- State.exception = SIGTRAP;
- }
+ sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, SIM_SIGTRAP);
}
/* divs */
@@ -1320,10 +1320,8 @@ OP_30000000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld", OP_REG_OUTPUT, OP_MEMREF2, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RW (addr);
SET_GPR (OP[0], tmp);
@@ -1339,10 +1337,8 @@ OP_6401 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld", OP_REG_OUTPUT, OP_POSTDEC, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RW (addr);
SET_GPR (OP[0], tmp);
@@ -1360,10 +1356,8 @@ OP_6001 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld", OP_REG_OUTPUT, OP_POSTINC, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RW (addr);
SET_GPR (OP[0], tmp);
@@ -1381,10 +1375,8 @@ OP_6000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld", OP_REG_OUTPUT, OP_MEMREF, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RW (addr);
SET_GPR (OP[0], tmp);
@@ -1400,10 +1392,8 @@ OP_32010000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld", OP_REG_OUTPUT, OP_MEMREF3, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RW (addr);
SET_GPR (OP[0], tmp);
@@ -1419,10 +1409,8 @@ OP_31000000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld2w", OP_REG_OUTPUT, OP_MEMREF2, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RLW (addr);
SET_GPR32 (OP[0], tmp);
@@ -1438,10 +1426,8 @@ OP_6601 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld2w", OP_REG_OUTPUT, OP_POSTDEC, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RLW (addr);
SET_GPR32 (OP[0], tmp);
@@ -1459,10 +1445,8 @@ OP_6201 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld2w", OP_REG_OUTPUT, OP_POSTINC, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RLW (addr);
SET_GPR32 (OP[0], tmp);
@@ -1480,10 +1464,8 @@ OP_6200 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld2w", OP_REG_OUTPUT, OP_MEMREF, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RLW (addr);
SET_GPR32 (OP[0], tmp);
@@ -1499,10 +1481,8 @@ OP_33010000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("ld2w", OP_REG_OUTPUT, OP_MEMREF3, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
tmp = RLW (addr);
SET_GPR32 (OP[0], tmp);
@@ -2225,7 +2205,7 @@ OP_5201 (SIM_DESC sd, SIM_CPU *cpu)
(*d10v_callback->printf_filtered) (d10v_callback,
"ERROR at PC 0x%x: instruction only valid for A0\n",
PC<<2);
- State.exception = SIGILL;
+ EXCEPTION (SIM_SIGILL);
}
SET_PSW_F1 (PSW_F0);
@@ -2300,12 +2280,12 @@ OP_27000000 (SIM_DESC sd, SIM_CPU *cpu)
if (GPR (OP[0]) == 0)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: rep with count=0 is illegal.\n");
- State.exception = SIGILL;
+ EXCEPTION (SIM_SIGILL);
}
if (OP[1] < 4)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: rep must include at least 4 instructions.\n");
- State.exception = SIGILL;
+ EXCEPTION (SIM_SIGILL);
}
trace_output_void (sd);
}
@@ -2322,12 +2302,12 @@ OP_2F000000 (SIM_DESC sd, SIM_CPU *cpu)
if (OP[0] == 0)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: repi with count=0 is illegal.\n");
- State.exception = SIGILL;
+ EXCEPTION (SIM_SIGILL);
}
if (OP[1] < 4)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: repi must include at least 4 instructions.\n");
- State.exception = SIGILL;
+ EXCEPTION (SIM_SIGILL);
}
trace_output_void (sd);
}
@@ -2476,8 +2456,7 @@ OP_3220 (SIM_DESC sd, SIM_CPU *cpu)
if (reg >= 17 || reg <= -17)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: shift value %d too large.\n", reg);
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
tmp = SEXT40 (ACC (OP[0]));
@@ -2485,8 +2464,7 @@ OP_3220 (SIM_DESC sd, SIM_CPU *cpu)
if (PSW_ST && (tmp < SEXT40 (MIN32) || tmp > SEXT40 (MAX32)))
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: accumulator value 0x%.2x%.8lx out of range\n", ((int)(tmp >> 32) & 0xff), ((unsigned long) tmp) & 0xffffffff);
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
if (reg >= 0 && reg <= 16)
@@ -2545,8 +2523,7 @@ OP_3200 (SIM_DESC sd, SIM_CPU *cpu)
else
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: shift value %d too large.\n", GPR (OP[1]) & 31);
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
if (PSW_ST)
@@ -2638,8 +2615,7 @@ OP_3400 (SIM_DESC sd, SIM_CPU *cpu)
else
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: shift value %d too large.\n", GPR (OP[1]) & 31);
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
}
@@ -2693,8 +2669,7 @@ OP_3000 (SIM_DESC sd, SIM_CPU *cpu)
else
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: shift value %d too large.\n", GPR (OP[1]) & 31);
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
}
@@ -2744,10 +2719,8 @@ OP_34000000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st", OP_REG, OP_MEMREF2, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr, GPR (OP[0]));
trace_output_void (sd);
@@ -2761,10 +2734,8 @@ OP_6800 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st", OP_REG, OP_MEMREF, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr, GPR (OP[0]));
trace_output_void (sd);
@@ -2780,15 +2751,12 @@ OP_6C1F (SIM_DESC sd, SIM_CPU *cpu)
if (OP[1] != 15)
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: cannot pre-decrement any registers but r15 (SP).\n");
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr, GPR (OP[0]));
SET_GPR (OP[1], addr);
@@ -2803,10 +2771,8 @@ OP_6801 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st", OP_REG, OP_POSTINC, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr, GPR (OP[0]));
INC_ADDR (OP[1], 2);
@@ -2822,15 +2788,12 @@ OP_6C01 (SIM_DESC sd, SIM_CPU *cpu)
if ( OP[1] == 15 )
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: cannot post-decrement register r15 (SP).\n");
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr, GPR (OP[0]));
INC_ADDR (OP[1], -2);
@@ -2845,10 +2808,8 @@ OP_36010000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st", OP_REG, OP_MEMREF3, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr, GPR (OP[0]));
trace_output_void (sd);
@@ -2862,10 +2823,8 @@ OP_35000000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st2w", OP_DREG, OP_MEMREF2, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr + 0, GPR (OP[0] + 0));
SW (addr + 2, GPR (OP[0] + 1));
@@ -2880,10 +2839,8 @@ OP_6A00 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st2w", OP_DREG, OP_MEMREF, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr + 0, GPR (OP[0] + 0));
SW (addr + 2, GPR (OP[0] + 1));
@@ -2899,15 +2856,12 @@ OP_6E1F (SIM_DESC sd, SIM_CPU *cpu)
if ( OP[1] != 15 )
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: cannot pre-decrement any registers but r15 (SP).\n");
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr + 0, GPR (OP[0] + 0));
SW (addr + 2, GPR (OP[0] + 1));
@@ -2923,10 +2877,8 @@ OP_6A01 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st2w", OP_DREG, OP_POSTINC, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr + 0, GPR (OP[0] + 0));
SW (addr + 2, GPR (OP[0] + 1));
@@ -2943,15 +2895,12 @@ OP_6E01 (SIM_DESC sd, SIM_CPU *cpu)
if ( OP[1] == 15 )
{
(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: cannot post-decrement register r15 (SP).\n");
- State.exception = SIGILL;
- return;
+ EXCEPTION (SIM_SIGILL);
}
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr + 0, GPR (OP[0] + 0));
SW (addr + 2, GPR (OP[0] + 1));
@@ -2967,10 +2916,8 @@ OP_37010000 (SIM_DESC sd, SIM_CPU *cpu)
trace_input ("st2w", OP_DREG, OP_MEMREF3, OP_VOID);
if ((addr & 1))
{
- State.exception = SIG_D10V_BUS;
- State.pc_changed = 1; /* Don't increment the PC. */
trace_output_void (sd);
- return;
+ EXCEPTION (SIM_SIGBUS);
}
SW (addr + 0, GPR (OP[0] + 0));
SW (addr + 2, GPR (OP[0] + 1));
@@ -3000,8 +2947,8 @@ void
OP_5FE0 (SIM_DESC sd, SIM_CPU *cpu)
{
trace_input ("stop", OP_VOID, OP_VOID, OP_VOID);
- State.exception = SIG_D10V_STOP;
trace_output_void (sd);
+ sim_engine_halt (sd, cpu, NULL, PC, sim_exited, 0);
}
/* sub */
@@ -3276,7 +3223,7 @@ OP_5F00 (SIM_DESC sd, SIM_CPU *cpu)
if (PARM1 == getpid ())
{
trace_output_void (sd);
- State.exception = PARM2;
+ sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, PARM2);
}
else
{
@@ -3389,7 +3336,7 @@ OP_5F00 (SIM_DESC sd, SIM_CPU *cpu)
trace_output_void (sd);
(*d10v_callback->printf_filtered) (d10v_callback, "Unknown signal %d\n", PARM2);
(*d10v_callback->flush_stdout) (d10v_callback);
- State.exception = SIGILL;
+ EXCEPTION (SIM_SIGILL);
}
else
{
@@ -3453,7 +3400,7 @@ OP_5F00 (SIM_DESC sd, SIM_CPU *cpu)
case TARGET_SYS_kill:
trace_input ("<kill>", OP_REG, OP_REG, OP_VOID);
trace_output_void (sd);
- State.exception = PARM2;
+ sim_engine_halt (sd, cpu, NULL, PC, sim_stopped, PARM2);
break;
#endif
@@ -3498,8 +3445,8 @@ OP_5F00 (SIM_DESC sd, SIM_CPU *cpu)
case TARGET_SYS_exit:
trace_input ("<exit>", OP_R0, OP_VOID, OP_VOID);
- State.exception = SIG_D10V_EXIT;
trace_output_void (sd);
+ sim_engine_halt (sd, cpu, NULL, PC, sim_exited, GPR (0));
break;
#ifdef TARGET_SYS_stat
--
2.6.2