diff options
Diffstat (limited to 'sim/h8300/compile.c')
| -rw-r--r-- | sim/h8300/compile.c | 147 |
1 files changed, 88 insertions, 59 deletions
diff --git a/sim/h8300/compile.c b/sim/h8300/compile.c index 5290b4c..1970156 100644 --- a/sim/h8300/compile.c +++ b/sim/h8300/compile.c @@ -18,11 +18,14 @@ */ #include <signal.h> +#ifndef WIN32 #include <sys/times.h> +#endif #include <sys/param.h> #include "ansidecl.h" #include "sysdep.h" #include "remote-sim.h" +#include "bfd.h" int debug; @@ -80,13 +83,12 @@ int h8300hmode = 0; static int get_now () { +#ifndef WIN32 struct tms b; return time (0); -#if 0 - times (&b); - return b.tms_utime + b.tms_stime; #endif + return 0; } static int @@ -665,8 +667,8 @@ init_pointers () cpu.memory = (unsigned char *) calloc (sizeof (char), MSIZE); cpu.cache_idx = (unsigned short *) calloc (sizeof (short), MSIZE); - cpu.mask = (1 << MPOWER) - 1; + cpu.mask = (1 << MPOWER) - 1; for (i = 0; i < 9; i++) { cpu.regs[i] = 0; @@ -815,7 +817,7 @@ case O(name, SB): \ if(s) store (&code->dst,ea); goto next; \ } -int +void sim_resume (step, siggnal) { static int init1; @@ -831,7 +833,7 @@ sim_resume (step, siggnal) int bit; int pc; int c, nz, v, n; - + int oldmask; init_pointers (); prev = signal (SIGINT, control_c); @@ -848,7 +850,9 @@ sim_resume (step, siggnal) pc = cpu.pc; GETSR (); - + oldmask = cpu.mask; + if (!h8300hmode) + cpu.mask = 0xffff; do { int cidx; @@ -1164,7 +1168,7 @@ sim_resume (step, siggnal) c = rd & 1; rd >>= 1; rd |= t; - ); + ); OSHIFTS (O_ROTL, c = rd & hm; rd <<= 1; rd |= C); @@ -1175,7 +1179,7 @@ sim_resume (step, siggnal) rd <<= 1; rd |= C; c = t; - ); + ); OSHIFTS (O_ROTXR, t = rd & 1; rd = (unsigned int) rd >> 1; if (C) rd |= hm; c = t;); @@ -1339,7 +1343,7 @@ sim_resume (step, siggnal) goto next; } case O (O_EXTS, SW): - rd = GET_B_REG (code->src.reg + 8) & 0xff; /* Yes, src, not dst. */ + rd = GET_B_REG (code->src.reg + 8) & 0xff; /* Yes, src, not dst. */ ea = rd & 0x80 ? -256 : 0; res = rd + ea; goto log16; @@ -1363,7 +1367,7 @@ sim_resume (step, siggnal) goto next; default: - cpu.exception = 123; + cpu.exception = SIGILL; goto end; } @@ -1506,7 +1510,18 @@ sim_resume (step, siggnal) ; /* if (cpu.regs[8] ) abort(); */ -#ifdef __GO32__ +#if defined (WIN32) + /* Poll after every 100th insn, */ + if (poll_count++ > 100) + { + poll_count = 0; + if (win32pollquit()) + { + control_c(); + } + } +#endif +#if defined(__GO32__) /* Poll after every 100th insn, */ if (poll_count++ > 100) { @@ -1524,10 +1539,10 @@ sim_resume (step, siggnal) cpu.ticks += get_now () - tick_start; cpu.cycles += cycles; cpu.insts += insts; - + cpu.pc = pc; BUILDSR (); - + cpu.mask = oldmask; signal (SIGINT, prev); } @@ -1586,7 +1601,7 @@ sim_read (addr, buffer, size) #define TICK_REGNUM 12 -int +void sim_store_register (rn, value) int rn; unsigned char *value; @@ -1631,10 +1646,9 @@ sim_store_register (rn, value) cpu.ticks = longval; break; } - return 0; } -int +void sim_fetch_register (rn, buf) int rn; unsigned char *buf; @@ -1689,34 +1703,17 @@ sim_fetch_register (rn, buf) buf[0] = v >> 8; buf[1] = v; } - return 0; } -int -sim_trace () -{ - return 0; -} - -int +void sim_stop_reason (reason, sigrc) enum sim_stop *reason; int *sigrc; { *reason = sim_stopped; *sigrc = cpu.exception; - return 0; } -int -sim_set_pc (n) - SIM_ADDR n; -{ - cpu.pc = n; - return 0; -} - - sim_csize (n) { if (cpu.cache) @@ -1729,24 +1726,21 @@ sim_csize (n) } -int -sim_info (printf_fn, verbose) - void (*printf_fn) (); +void +sim_info (verbose) int verbose; - { double timetaken = (double) cpu.ticks / (double) now_persec (); double virttime = cpu.cycles / 10.0e6; - printf ("\n\n#instructions executed %10d\n", cpu.insts); - printf ("#cycles (v approximate) %10d\n", cpu.cycles); - printf ("#real time taken %10.4f\n", timetaken); - printf ("#virtual time taked %10.4f\n", virttime); + printf_filtered ("\n\n#instructions executed %10d\n", cpu.insts); + printf_filtered ("#cycles (v approximate) %10d\n", cpu.cycles); + printf_filtered ("#real time taken %10.4f\n", timetaken); + printf_filtered ("#virtual time taked %10.4f\n", virttime); if (timetaken != 0.0) - printf ("#simulation ratio %10.4f\n", virttime / timetaken); - printf ("#compiles %10d\n", cpu.compiles); - printf ("#cache size %10d\n", cpu.csize); - + printf_filtered ("#simulation ratio %10.4f\n", virttime / timetaken); + printf_filtered ("#compiles %10d\n", cpu.compiles); + printf_filtered ("#cache size %10d\n", cpu.csize); #ifdef ADEBUG if (verbose) @@ -1755,35 +1749,70 @@ sim_info (printf_fn, verbose) for (i = 0; i < O_LAST; i++) { if (cpu.stats[i]) - printf ("%d: %d\n", i, cpu.stats[i]); + printf_filtered ("%d: %d\n", i, cpu.stats[i]); } } #endif - - return 0; } +/* Indicate whether the cpu is an h8/300 or h8/300h. + FLAG is non-zero for the h8/300h. */ + void -set_h8300h () +set_h8300h (flag) + int flag; { - h8300hmode = 1; + h8300hmode = flag; } -int +void sim_kill () { - return 0; + /* nothing to do */ } -sim_open (name) - char *name; +void +sim_open (args) + char *args; { - return 0; + /* nothing to do */ } -sim_set_args (argv, env) +void +sim_close (quitting) + int quitting; +{ + /* nothing to do */ +} + +/* Called by gdb to load a program into memory. */ + +int +sim_load (prog, from_tty) + char *prog; + int from_tty; +{ + bfd *abfd; + + /* See if the file is for the h8/300 or h8/300h. */ + /* ??? This may not be the most efficient way. The z8k simulator + does this via a different mechanism (INIT_EXTRA_SYMTAB_INFO). */ + if ((abfd = bfd_openr (prog, "coff-h8300")) != 0) + { + if (bfd_check_format (abfd, bfd_object)) + set_h8300h (abfd->arch_info->mach == bfd_mach_h8300h); + bfd_close (abfd); + } + + /* Return non-zero so gdb will handle it. */ + return 1; +} + +void +sim_create_inferior (start_address, argv, env) + SIM_ADDR start_address; char **argv; char **env; { - return 0; + cpu.pc = start_address; } |