diff options
author | Doug Evans <dje@google.com> | 1998-08-03 19:58:36 +0000 |
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committer | Doug Evans <dje@google.com> | 1998-08-03 19:58:36 +0000 |
commit | 13ccace0ca8640550e0a9ac225aeca43e564237b (patch) | |
tree | b6f429457ce34534c0b619012e5f829463cfcd6c /sim/m32r/sim-if.c | |
parent | c2009f4a31b33b3615f0425bfac096b9f3055d22 (diff) | |
download | gdb-13ccace0ca8640550e0a9ac225aeca43e564237b.zip gdb-13ccace0ca8640550e0a9ac225aeca43e564237b.tar.gz gdb-13ccace0ca8640550e0a9ac225aeca43e564237b.tar.bz2 |
* Makefile.in (INCLUDE_DEPS): Add include/opcode/cgen.h.
* sim-if.c (sim_open): Open opcode table.
(sim_close): Close it.
Diffstat (limited to 'sim/m32r/sim-if.c')
-rw-r--r-- | sim/m32r/sim-if.c | 124 |
1 files changed, 14 insertions, 110 deletions
diff --git a/sim/m32r/sim-if.c b/sim/m32r/sim-if.c index 36c1644..adafa23 100644 --- a/sim/m32r/sim-if.c +++ b/sim/m32r/sim-if.c @@ -23,7 +23,6 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "sim-options.h" #include "libiberty.h" #include "bfd.h" -#include "targ-vals.h" static void free_state (SIM_DESC); static void print_m32r_misc_cpu (SIM_CPU *cpu, int verbose); @@ -87,7 +86,9 @@ sim_open (kind, callback, abfd, argv) /* Allocate core managed memory */ sim_do_commandf (sd, "memory region 0,0x%lx", M32R_DEFAULT_MEM_SIZE); - /* Allocate a handler for the MSPR register. */ + /* Allocate a handler for the control registers and other devices. + All are allocated in one chunk to keep things from being + unnecessarily complicated. */ sim_core_attach (sd, NULL, 0 /*level*/, access_read_write, @@ -174,6 +175,11 @@ sim_open (kind, callback, abfd, argv) /* Initialize various cgen things not done by common framework. */ cgen_init (sd); + /* Open a copy of the opcode table. */ + STATE_OPCODE_TABLE (sd) = m32r_cgen_opcode_open (STATE_ARCHITECTURE (sd)->mach, + CGEN_ENDIAN_BIG); + m32r_cgen_init_dis (STATE_OPCODE_TABLE (sd)); + { int c; @@ -200,6 +206,7 @@ sim_close (sd, quitting) SIM_DESC sd; int quitting; { + m32r_cgen_opcode_close (STATE_OPCODE_TABLE (sd)); sim_module_uninstall (sd); } @@ -309,6 +316,11 @@ print_m32r_misc_cpu (SIM_CPU *cpu, int verbose) PROFILE_LABEL_WIDTH, "Fill nops:", sim_add_commas (buf, sizeof (buf), CPU_M32R_MISC_PROFILE (cpu).fillnop_count)); + if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32rx) + sim_io_printf (sd, " %-*s %s\n\n", + PROFILE_LABEL_WIDTH, "Parallel insns:", + sim_add_commas (buf, sizeof (buf), + CPU_M32R_MISC_PROFILE (cpu).parallel_count)); } } @@ -349,17 +361,6 @@ sim_do_command (sd, cmd) sim_io_eprintf (sd, "Unknown command `%s'\n", cmd); } -/* The semantic code invokes this for illegal (unrecognized) instructions. */ - -void -sim_engine_illegal_insn (current_cpu, pc) - SIM_CPU *current_cpu; - PCADDR pc; -{ - sim_engine_halt (CPU_STATE (current_cpu), current_cpu, NULL, pc, - sim_stopped, SIM_SIGILL); -} - /* Utility fns to access registers, without knowing the current mach. */ SI @@ -399,100 +400,3 @@ h_gr_set (SIM_CPU *current_cpu, UINT regno, SI newval) abort (); } } - -/* Read/write functions for system call interface. */ - -static int -syscall_read_mem (host_callback *cb, struct cb_syscall *sc, - unsigned long taddr, char *buf, int bytes) -{ - SIM_DESC sd = (SIM_DESC) sc->p1; - SIM_CPU *cpu = (SIM_CPU *) sc->p2; - - return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes); -} - -static int -syscall_write_mem (host_callback *cb, struct cb_syscall *sc, - unsigned long taddr, const char *buf, int bytes) -{ - SIM_DESC sd = (SIM_DESC) sc->p1; - SIM_CPU *cpu = (SIM_CPU *) sc->p2; - - return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes); -} - -/* Trap support. - The result is the pc address to continue at. */ - -USI -do_trap (SIM_CPU *current_cpu, int num) -{ - SIM_DESC sd = CPU_STATE (current_cpu); - host_callback *cb = STATE_CALLBACK (sd); - -#ifdef SIM_HAVE_BREAKPOINTS - /* Check for breakpoints "owned" by the simulator first, regardless - of --environment. */ - if (num == 1) - { - /* First try sim-break.c. If it's a breakpoint the simulator "owns" - it doesn't return. Otherwise it returns and let's us try. */ - sim_handle_breakpoint (sd, current_cpu, sim_pc_get (current_cpu)); - /* Fall through. */ - } -#endif - - if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT) - { - /* The new pc is the trap vector entry. - We assume there's a branch there to some handler. */ - USI new_pc = num * 4; - return new_pc; - } - - switch (num) - { - case 0 : - /* Trap 0 is used for system calls. */ - { - CB_SYSCALL s; - - CB_SYSCALL_INIT (&s); - s.func = h_gr_get (current_cpu, 0); - s.arg1 = h_gr_get (current_cpu, 1); - s.arg2 = h_gr_get (current_cpu, 2); - s.arg3 = h_gr_get (current_cpu, 3); - - if (s.func == TARGET_SYS_exit) - { - sim_engine_halt (sd, current_cpu, NULL, sim_pc_get (current_cpu), - sim_exited, s.arg1); - } - - s.p1 = (PTR) sd; - s.p2 = (PTR) current_cpu; - s.read_mem = syscall_read_mem; - s.write_mem = syscall_write_mem; - cb_syscall (STATE_CALLBACK (sd), &s); - h_gr_set (current_cpu, 2, s.errcode); - h_gr_set (current_cpu, 0, s.result); - h_gr_set (current_cpu, 1, s.result2); - break; - } - - case 1: /* breakpoint trap */ - sim_engine_halt (sd, current_cpu, NULL, NULL_CIA, - sim_stopped, SIM_SIGTRAP); - break; - - default : - { - USI new_pc = num * 4; - return new_pc; - } - } - - /* Fake an "rte" insn. */ - return (sim_pc_get (current_cpu) & -4) + 4; -} |