#include "idecode.h"
#include "itable.h"
-#include <signal.h>
-
#ifdef HAVE_STRING_H
#include <string.h>
#else
#endif
#endif
-void
-engine_init (SIM_DESC sd)
-{
- memset (&STATE_CPU (sd, 0)->reg, 0, sizeof STATE_CPU (sd, 0)->reg);
- memset (&STATE_CPU (sd, 0)->cia, 0, sizeof STATE_CPU (sd, 0)->cia);
- CPU_STATE (STATE_CPU (sd, 0)) = sd;
-}
-
-/* Mechanisms for stopping/restarting the simulation */
+#if 0
void
engine_error (SIM_DESC sd,
sim_io_evprintf (sd, fmt, ap);
va_end (ap);
- if (sd->halt_ok)
- {
- sim_io_eprintf (sd, "\n");
- engine_halt (sd, cpu, cia, sim_signalled, SIGABRT);
- }
- else
- sim_io_error (sd, " - aborting simulation");
+ sim_halt (sd, cpu, NULL, cia, sim_stopped, SIGABRT);
}
void
cia = cpu->cia;
do
{
- if (cia.ip == -1)
- {
- /* anulled instruction */
- cia.ip = cia.dp;
- cia.dp = cia.dp + sizeof (instruction_word);
- }
- else
- {
- instruction_word insn = IMEM (cia.ip);
- cia = idecode_issue (sd, insn, cia);
- }
+ instruction_word insn = IMEM (cia);
+ cia = idecode_issue (sd, insn, cia);
}
while (*keep_running);
- engine_halt (sd, cpu, cia, sim_stopped, SIGINT);
+ engine_halt (sd, cpu, cia, sim_stopped, SIM_SIGINT);
}
}
-\f
-#if defined(WITH_TRACE)
-/* Tracing support routines */
-
-static char tic80_trace_buffer[1024];
-static int tic80_size_name;
-
-#define SIZE_HEX 8
-#define SIZE_DECIMAL 12
-
-/* Initialize tracing by calculating the maximum name size */
-static void
-tic80_init_trace (void)
-{
- int i;
- int len, max_len = 0;
-
- for (i = 0; i < (int)nr_itable_entries; i++) {
- len = strlen (itable[i].name);
- if (len > max_len)
- max_len = len;
- }
-
- tic80_size_name = max_len + sizeof(":m") - 1 + sizeof (":s") - 1;
-}
-
-/* Trace the result of an ALU operation with 2 integer inputs and an integer output */
-char *
-tic80_trace_alu3 (int indx,
- unsigned32 result,
- unsigned32 input1,
- unsigned32 input2)
-{
- char buf1[SIZE_DECIMAL+10], buf2[SIZE_DECIMAL+10], bufr[SIZE_DECIMAL+10];
-
- if (!tic80_size_name)
- tic80_init_trace ();
-
- sprintf (bufr, "(%ld)", (long) (signed32) result);
- sprintf (buf1, "(%ld)", (long) (signed32) input1);
- sprintf (buf2, "(%ld)", (long) (signed32) input2);
-
- sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %-*s 0x%.*lx %-*s => 0x%.*lx %-*s",
- tic80_size_name, itable[indx].name,
- SIZE_HEX, input1, SIZE_DECIMAL, buf1,
- SIZE_HEX, input2, SIZE_DECIMAL, buf2,
- SIZE_HEX, result, SIZE_DECIMAL, bufr);
-
- return tic80_trace_buffer;
-}
-
-/* Trace the result of an ALU operation with 1 integer input and an integer output */
-char *
-tic80_trace_alu2 (int indx,
- unsigned32 result,
- unsigned32 input)
-{
- char bufi[SIZE_DECIMAL+10], bufr[SIZE_DECIMAL+10];
-
- if (!tic80_size_name)
- tic80_init_trace ();
-
- sprintf (bufr, "(%ld)", (long) (signed32) result);
- sprintf (bufi, "(%ld)", (long) (signed32) input);
-
- sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %-*s %*s => 0x%.*lx %-*s",
- tic80_size_name, itable[indx].name,
- SIZE_HEX, input, SIZE_DECIMAL, bufi,
- SIZE_HEX + SIZE_DECIMAL + 3, "",
- SIZE_HEX, result, SIZE_DECIMAL, bufr);
-
- return tic80_trace_buffer;
-}
-
-/* Trace the result of a NOP operation */
-char *
-tic80_trace_nop (int indx)
-{
- if (!tic80_size_name)
- tic80_init_trace ();
-
- sprintf (tic80_trace_buffer, "%s", itable[indx].name);
- return tic80_trace_buffer;
-}
-
-/* Trace the result of a data sink with one input */
-char *
-tic80_trace_sink1 (int indx, unsigned32 input)
-{
- char buf[SIZE_DECIMAL+10];
-
- if (!tic80_size_name)
- tic80_init_trace ();
-
- sprintf (buf, "(%ld)", (long) (signed32) input);
- sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %-*s",
- tic80_size_name, itable[indx].name,
- SIZE_HEX, input, SIZE_DECIMAL, buf);
-
- return tic80_trace_buffer;
-}
-
-/* Trace the result of a data sink with two inputs */
-char *
-tic80_trace_sink2 (int indx, unsigned32 input1, unsigned32 input2)
-{
- char buf1[SIZE_DECIMAL+10], buf2[SIZE_DECIMAL+10];
-
- if (!tic80_size_name)
- tic80_init_trace ();
-
- sprintf (buf1, "(%ld)", (long) (signed32) input1);
- sprintf (buf2, "(%ld)", (long) (signed32) input2);
- sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %-*s 0x%.*lx %-*s",
- tic80_size_name, itable[indx].name,
- SIZE_HEX, input1, SIZE_DECIMAL, buf1,
- SIZE_HEX, input2, SIZE_DECIMAL, buf2);
-
- return tic80_trace_buffer;
-}
-
-/* Trace the result of a conditional branch operation */
-char *
-tic80_trace_cond_br (int indx,
- int jump_p,
- unsigned32 cond,
- unsigned32 target)
-{
- char buf[SIZE_DECIMAL+10];
-
- if (!tic80_size_name)
- tic80_init_trace ();
-
- sprintf (buf, "(%ld)", (long) (signed32) cond);
- if (jump_p)
- sprintf (tic80_trace_buffer,
- "%-*s 0x%.*lx %*s 0x%.*lx %-*s => 0x%.*lx",
- tic80_size_name, itable[indx].name,
- SIZE_HEX, target, SIZE_DECIMAL, "",
- SIZE_HEX, cond, SIZE_DECIMAL, buf,
- SIZE_HEX, target);
- else
- sprintf (tic80_trace_buffer,
- "%-*s 0x%.*lx %*s 0x%.*lx %-*s => [fallthrough]",
- tic80_size_name, itable[indx].name,
- SIZE_HEX, target, SIZE_DECIMAL, "",
- SIZE_HEX, cond, SIZE_DECIMAL, buf);
-
- return tic80_trace_buffer;
-}
-
-/* Trace the result of a unconditional branch operation */
-char *
-tic80_trace_ucond_br (int indx,
- unsigned32 target)
+void
+engine_step (SIM_DESC sd)
{
- if (!tic80_size_name)
- tic80_init_trace ();
-
- sprintf (tic80_trace_buffer,
- "%-*s 0x%.*lx %*s => 0x%.*lx",
- tic80_size_name, itable[indx].name,
- SIZE_HEX, target, (SIZE_DECIMAL*2) + SIZE_HEX + 4, "",
- SIZE_HEX, target);
-
- return tic80_trace_buffer;
+ if (!setjmp (sd->path_to_halt))
+ {
+ instruction_address cia;
+ instruction_word insn;
+ sim_cpu *cpu = STATE_CPU (sd, 0);
+ sd->halt_ok = 1;
+ setjmp (sd->path_to_restart);
+ sd->restart_ok = 1;
+ cia = cpu->cia;
+ insn = IMEM (cia);
+ cia = idecode_issue (sd, insn, cia);
+ engine_halt (sd, cpu, cia, sim_stopped, SIM_SIGTRAP);
+ }
}
-/* Trace the result of a load or store operation with 2 integer addresses
- and an integer output or input */
-char *
-tic80_trace_ldst (int indx,
- int st_p,
- int m_p,
- int s_p,
- unsigned32 value,
- unsigned32 input1,
- unsigned32 input2)
-{
- char buf1[SIZE_DECIMAL+10], buf2[SIZE_DECIMAL+10], bufr[SIZE_DECIMAL+10];
- char name[40];
-
- if (!tic80_size_name)
- tic80_init_trace ();
-
- strcpy (name, itable[indx].name);
- if (m_p)
- strcat (name, ":m");
-
- if (s_p)
- strcat (name, ":s");
-
- sprintf (bufr, "(%ld)", (long) (signed32) value);
- sprintf (buf1, "(%ld)", (long) (signed32) input1);
- sprintf (buf2, "(%ld)", (long) (signed32) input2);
-
- sprintf (tic80_trace_buffer, "%-*s 0x%.*lx %-*s 0x%.*lx %-*s %s 0x%.*lx %-*s",
- tic80_size_name, name,
- SIZE_HEX, input1, SIZE_DECIMAL, buf1,
- SIZE_HEX, input2, SIZE_DECIMAL, buf2,
- (!st_p) ? "=>" : "<=",
- SIZE_HEX, value, SIZE_DECIMAL, bufr);
-
- return tic80_trace_buffer;
-}
-#endif /* WITH_TRACE */
+#endif
projects / deliverable / binutils-gdb.git / blobdiff