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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/arc-tdep.c
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
Initial creation of sourceware repository
Diffstat (limited to 'gdb/arc-tdep.c')
-rw-r--r--gdb/arc-tdep.c733
1 files changed, 0 insertions, 733 deletions
diff --git a/gdb/arc-tdep.c b/gdb/arc-tdep.c
deleted file mode 100644
index 92957700f9..0000000000
--- a/gdb/arc-tdep.c
+++ /dev/null
@@ -1,733 +0,0 @@
-/* ARC target-dependent stuff.
- Copyright (C) 1995, 1997 Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "gdbcore.h"
-#include "target.h"
-#include "floatformat.h"
-#include "symtab.h"
-#include "gdbcmd.h"
-
-/* Current CPU, set with the "set cpu" command. */
-static int arc_bfd_mach_type;
-char *arc_cpu_type;
-char *tmp_arc_cpu_type;
-
-/* Table of cpu names. */
-struct {
- char *name;
- int value;
-} arc_cpu_type_table[] = {
- { "base", bfd_mach_arc_base },
- { NULL, 0 }
-};
-
-/* Used by simulator. */
-int display_pipeline_p;
-int cpu_timer;
-/* This one must have the same type as used in the emulator.
- It's currently an enum so this should be ok for now. */
-int debug_pipeline_p;
-
-#define ARC_CALL_SAVED_REG(r) ((r) >= 16 && (r) < 24)
-
-#define OPMASK 0xf8000000
-
-/* Instruction field accessor macros.
- See the Programmer's Reference Manual. */
-#define X_OP(i) (((i) >> 27) & 0x1f)
-#define X_A(i) (((i) >> 21) & 0x3f)
-#define X_B(i) (((i) >> 15) & 0x3f)
-#define X_C(i) (((i) >> 9) & 0x3f)
-#define X_D(i) ((((i) & 0x1ff) ^ 0x100) - 0x100)
-#define X_L(i) (((((i) >> 5) & 0x3ffffc) ^ 0x200000) - 0x200000)
-#define X_N(i) (((i) >> 5) & 3)
-#define X_Q(i) ((i) & 0x1f)
-
-/* Return non-zero if X is a short immediate data indicator. */
-#define SHIMM_P(x) ((x) == 61 || (x) == 63)
-
-/* Return non-zero if X is a "long" (32 bit) immediate data indicator. */
-#define LIMM_P(x) ((x) == 62)
-
-/* Build a simple instruction. */
-#define BUILD_INSN(op, a, b, c, d) \
- ((((op) & 31) << 27) \
- | (((a) & 63) << 21) \
- | (((b) & 63) << 15) \
- | (((c) & 63) << 9) \
- | ((d) & 511))
-
-/* Codestream stuff. */
-static void codestream_read PARAMS ((unsigned int *, int));
-static void codestream_seek PARAMS ((CORE_ADDR));
-static unsigned int codestream_fill PARAMS ((int));
-
-#define CODESTREAM_BUFSIZ 16
-static CORE_ADDR codestream_next_addr;
-static CORE_ADDR codestream_addr;
-static unsigned int codestream_buf[CODESTREAM_BUFSIZ];
-static int codestream_off;
-static int codestream_cnt;
-
-#define codestream_tell() \
- (codestream_addr + codestream_off * sizeof (codestream_buf[0]))
-#define codestream_peek() \
- (codestream_cnt == 0 \
- ? codestream_fill (1) \
- : codestream_buf[codestream_off])
-#define codestream_get() \
- (codestream_cnt-- == 0 \
- ? codestream_fill (0) \
- : codestream_buf[codestream_off++])
-
-static unsigned int
-codestream_fill (peek_flag)
- int peek_flag;
-{
- codestream_addr = codestream_next_addr;
- codestream_next_addr += CODESTREAM_BUFSIZ * sizeof (codestream_buf[0]);
- codestream_off = 0;
- codestream_cnt = CODESTREAM_BUFSIZ;
- read_memory (codestream_addr, (char *) codestream_buf,
- CODESTREAM_BUFSIZ * sizeof (codestream_buf[0]));
- /* FIXME: check return code? */
-
- /* Handle byte order differences. */
- if (HOST_BYTE_ORDER != TARGET_BYTE_ORDER)
- {
- register unsigned int i, j, n = sizeof (codestream_buf[0]);
- register char tmp, *p;
- for (i = 0, p = (char *) codestream_buf; i < CODESTREAM_BUFSIZ;
- ++i, p += n)
- for (j = 0; j < n / 2; ++j)
- tmp = p[j], p[j] = p[n - 1 - j], p[n - 1 - j] = tmp;
- }
-
- if (peek_flag)
- return codestream_peek ();
- else
- return codestream_get ();
-}
-
-static void
-codestream_seek (place)
- CORE_ADDR place;
-{
- codestream_next_addr = place / CODESTREAM_BUFSIZ;
- codestream_next_addr *= CODESTREAM_BUFSIZ;
- codestream_cnt = 0;
- codestream_fill (1);
- while (codestream_tell () != place)
- codestream_get ();
-}
-
-/* This function is currently unused but leave in for now. */
-
-static void
-codestream_read (buf, count)
- unsigned int *buf;
- int count;
-{
- unsigned int *p;
- int i;
- p = buf;
- for (i = 0; i < count; i++)
- *p++ = codestream_get ();
-}
-
-/* Set up prologue scanning and return the first insn. */
-
-static unsigned int
-setup_prologue_scan (pc)
- CORE_ADDR pc;
-{
- unsigned int insn;
-
- codestream_seek (pc);
- insn = codestream_get ();
-
- return insn;
-}
-
-/*
- * Find & return amount a local space allocated, and advance codestream to
- * first register push (if any).
- * If entry sequence doesn't make sense, return -1, and leave
- * codestream pointer random.
- */
-
-static long
-arc_get_frame_setup (pc)
- CORE_ADDR pc;
-{
- unsigned int insn;
- /* Size of frame or -1 if unrecognizable prologue. */
- int frame_size = -1;
- /* An initial "sub sp,sp,N" may or may not be for a stdarg fn. */
- int maybe_stdarg_decr = -1;
-
- insn = setup_prologue_scan (pc);
-
- /* The authority for what appears here is the home-grown ABI.
- The most recent version is 1.2. */
-
- /* First insn may be "sub sp,sp,N" if stdarg fn. */
- if ((insn & BUILD_INSN (-1, -1, -1, -1, 0))
- == BUILD_INSN (10, SP_REGNUM, SP_REGNUM, SHIMM_REGNUM, 0))
- {
- maybe_stdarg_decr = X_D (insn);
- insn = codestream_get ();
- }
-
- if ((insn & BUILD_INSN (-1, 0, -1, -1, -1)) /* st blink,[sp,4] */
- == BUILD_INSN (2, 0, SP_REGNUM, BLINK_REGNUM, 4))
- {
- insn = codestream_get ();
- /* Frame may not be necessary, even though blink is saved.
- At least this is something we recognize. */
- frame_size = 0;
- }
-
- if ((insn & BUILD_INSN (-1, 0, -1, -1, -1)) /* st fp,[sp] */
- == BUILD_INSN (2, 0, SP_REGNUM, FP_REGNUM, 0))
- {
- insn = codestream_get ();
- if ((insn & BUILD_INSN (-1, -1, -1, -1, 0))
- != BUILD_INSN (12, FP_REGNUM, SP_REGNUM, SP_REGNUM, 0))
- return -1;
-
- /* Check for stack adjustment sub sp,sp,N. */
- insn = codestream_peek ();
- if ((insn & BUILD_INSN (-1, -1, -1, 0, 0))
- == BUILD_INSN (10, SP_REGNUM, SP_REGNUM, 0, 0))
- {
- if (LIMM_P (X_C (insn)))
- frame_size = codestream_get ();
- else if (SHIMM_P (X_C (insn)))
- frame_size = X_D (insn);
- else
- return -1;
- if (frame_size < 0)
- return -1;
-
- codestream_get ();
-
- /* This sequence is used to get the address of the return
- buffer for a function that returns a structure. */
- insn = codestream_peek ();
- if (insn & OPMASK == 0x60000000)
- codestream_get ();
- }
- /* Frameless fn. */
- else
- {
- frame_size = 0;
- }
- }
-
- /* If we found a "sub sp,sp,N" and nothing else, it may or may not be a
- stdarg fn. The stdarg decrement is not treated as part of the frame size,
- so we have a dilemma: what do we return? For now, if we get a
- "sub sp,sp,N" and nothing else assume this isn't a stdarg fn. One way
- to fix this completely would be to add a bit to the function descriptor
- that says the function is a stdarg function. */
-
- if (frame_size < 0 && maybe_stdarg_decr > 0)
- return maybe_stdarg_decr;
- return frame_size;
-}
-
-/* Given a pc value, skip it forward past the function prologue by
- disassembling instructions that appear to be a prologue.
-
- If FRAMELESS_P is set, we are only testing to see if the function
- is frameless. If it is a frameless function, return PC unchanged.
- This allows a quicker answer. */
-
-CORE_ADDR
-skip_prologue (pc, frameless_p)
- CORE_ADDR pc;
- int frameless_p;
-{
- unsigned int insn;
- int i, frame_size;
-
- if ((frame_size = arc_get_frame_setup (pc)) < 0)
- return (pc);
-
- if (frameless_p)
- return frame_size == 0 ? pc : codestream_tell ();
-
- /* Skip over register saves. */
- for (i = 0; i < 8; i++)
- {
- insn = codestream_peek ();
- if ((insn & BUILD_INSN (-1, 0, -1, 0, 0))
- != BUILD_INSN (2, 0, SP_REGNUM, 0, 0))
- break; /* not st insn */
- if (! ARC_CALL_SAVED_REG (X_C (insn)))
- break;
- codestream_get ();
- }
-
- return codestream_tell ();
-}
-
-/* Return the return address for a frame.
- This is used to implement FRAME_SAVED_PC.
- This is taken from frameless_look_for_prologue. */
-
-CORE_ADDR
-arc_frame_saved_pc (frame)
- struct frame_info *frame;
-{
- CORE_ADDR func_start;
- unsigned int insn;
-
- func_start = get_pc_function_start (frame->pc) + FUNCTION_START_OFFSET;
- if (func_start == 0)
- {
- /* Best guess. */
- return ARC_PC_TO_REAL_ADDRESS (read_memory_integer (FRAME_FP (frame) + 4, 4));
- }
-
- /* The authority for what appears here is the home-grown ABI.
- The most recent version is 1.2. */
-
- insn = setup_prologue_scan (func_start);
-
- /* First insn may be "sub sp,sp,N" if stdarg fn. */
- if ((insn & BUILD_INSN (-1, -1, -1, -1, 0))
- == BUILD_INSN (10, SP_REGNUM, SP_REGNUM, SHIMM_REGNUM, 0))
- insn = codestream_get ();
-
- /* If the next insn is "st blink,[sp,4]" we can get blink from there.
- Otherwise this is a leaf function and we can use blink. Note that
- this still allows for the case where a leaf function saves/clobbers/
- restores blink. */
-
- if ((insn & BUILD_INSN (-1, 0, -1, -1, -1)) /* st blink,[sp,4] */
- != BUILD_INSN (2, 0, SP_REGNUM, BLINK_REGNUM, 4))
- return ARC_PC_TO_REAL_ADDRESS (read_register (BLINK_REGNUM));
- else
- return ARC_PC_TO_REAL_ADDRESS (read_memory_integer (FRAME_FP (frame) + 4, 4));
-}
-
-/*
- * Parse the first few instructions of the function to see
- * what registers were stored.
- *
- * The startup sequence can be at the start of the function.
- * 'st blink,[sp+4], st fp,[sp], mov fp,sp'
- *
- * Local space is allocated just below by sub sp,sp,nnn.
- * Next, the registers used by this function are stored (as offsets from sp).
- */
-
-void
-frame_find_saved_regs (fip, fsrp)
- struct frame_info *fip;
- struct frame_saved_regs *fsrp;
-{
- long locals;
- unsigned int insn;
- CORE_ADDR dummy_bottom;
- CORE_ADDR adr;
- int i, regnum, offset;
-
- memset (fsrp, 0, sizeof *fsrp);
-
- /* If frame is the end of a dummy, compute where the beginning would be. */
- dummy_bottom = fip->frame - 4 - REGISTER_BYTES - CALL_DUMMY_LENGTH;
-
- /* Check if the PC is in the stack, in a dummy frame. */
- if (dummy_bottom <= fip->pc && fip->pc <= fip->frame)
- {
- /* all regs were saved by push_call_dummy () */
- adr = fip->frame;
- for (i = 0; i < NUM_REGS; i++)
- {
- adr -= REGISTER_RAW_SIZE (i);
- fsrp->regs[i] = adr;
- }
- return;
- }
-
- locals = arc_get_frame_setup (get_pc_function_start (fip->pc));
-
- if (locals >= 0)
- {
- /* Set `adr' to the value of `sp'. */
- adr = fip->frame - locals;
- for (i = 0; i < 8; i++)
- {
- insn = codestream_get ();
- if ((insn & BUILD_INSN (-1, 0, -1, 0, 0))
- != BUILD_INSN (2, 0, SP_REGNUM, 0, 0))
- break;
- regnum = X_C (insn);
- offset = X_D (insn);
- fsrp->regs[regnum] = adr + offset;
- }
- }
-
- fsrp->regs[PC_REGNUM] = fip->frame + 4;
- fsrp->regs[FP_REGNUM] = fip->frame;
-}
-
-void
-push_dummy_frame ()
-{
- CORE_ADDR sp = read_register (SP_REGNUM);
- int regnum;
- char regbuf[MAX_REGISTER_RAW_SIZE];
-
- read_register_gen (PC_REGNUM, regbuf);
- write_memory (sp+4, regbuf, REGISTER_SIZE);
- read_register_gen (FP_REGNUM, regbuf);
- write_memory (sp, regbuf, REGISTER_SIZE);
- write_register (FP_REGNUM, sp);
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- {
- read_register_gen (regnum, regbuf);
- sp = push_bytes (sp, regbuf, REGISTER_RAW_SIZE (regnum));
- }
- sp += (2*REGISTER_SIZE);
- write_register (SP_REGNUM, sp);
-}
-
-void
-pop_frame ()
-{
- struct frame_info *frame = get_current_frame ();
- CORE_ADDR fp;
- int regnum;
- struct frame_saved_regs fsr;
- char regbuf[MAX_REGISTER_RAW_SIZE];
-
- fp = FRAME_FP (frame);
- get_frame_saved_regs (frame, &fsr);
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- {
- CORE_ADDR adr;
- adr = fsr.regs[regnum];
- if (adr)
- {
- read_memory (adr, regbuf, REGISTER_RAW_SIZE (regnum));
- write_register_bytes (REGISTER_BYTE (regnum), regbuf,
- REGISTER_RAW_SIZE (regnum));
- }
- }
- write_register (FP_REGNUM, read_memory_integer (fp, 4));
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4));
- write_register (SP_REGNUM, fp + 8);
- flush_cached_frames ();
-}
-
-/* Simulate single-step. */
-
-typedef enum
-{
- NORMAL4, /* a normal 4 byte insn */
- NORMAL8, /* a normal 8 byte insn */
- BRANCH4, /* a 4 byte branch insn, including ones without delay slots */
- BRANCH8, /* an 8 byte branch insn, including ones with delay slots */
-} insn_type;
-
-/* Return the type of INSN and store in TARGET the destination address of a
- branch if this is one. */
-/* ??? Need to verify all cases are properly handled. */
-
-static insn_type
-get_insn_type (insn, pc, target)
- unsigned long insn;
- CORE_ADDR pc, *target;
-{
- unsigned long limm;
-
- switch (insn >> 27)
- {
- case 0 : case 1 : case 2 : /* load/store insns */
- if (LIMM_P (X_A (insn))
- || LIMM_P (X_B (insn))
- || LIMM_P (X_C (insn)))
- return NORMAL8;
- return NORMAL4;
- case 4 : case 5 : case 6 : /* branch insns */
- *target = pc + 4 + X_L (insn);
- /* ??? It isn't clear that this is always the right answer.
- The problem occurs when the next insn is an 8 byte insn. If the
- branch is conditional there's no worry as there shouldn't be an 8
- byte insn following. The programmer may be cheating if s/he knows
- the branch will never be taken, but we don't deal with that.
- Note that the programmer is also allowed to play games by putting
- an insn with long immediate data in the delay slot and then duplicate
- the long immediate data at the branch target. Ugh! */
- if (X_N (insn) == 0)
- return BRANCH4;
- return BRANCH8;
- case 7 : /* jump insns */
- if (LIMM_P (X_B (insn)))
- {
- limm = read_memory_integer (pc + 4, 4);
- *target = ARC_PC_TO_REAL_ADDRESS (limm);
- return BRANCH8;
- }
- if (SHIMM_P (X_B (insn)))
- *target = ARC_PC_TO_REAL_ADDRESS (X_D (insn));
- else
- *target = ARC_PC_TO_REAL_ADDRESS (read_register (X_B (insn)));
- if (X_Q (insn) == 0 && X_N (insn) == 0)
- return BRANCH4;
- return BRANCH8;
- default : /* arithmetic insns, etc. */
- if (LIMM_P (X_A (insn))
- || LIMM_P (X_B (insn))
- || LIMM_P (X_C (insn)))
- return NORMAL8;
- return NORMAL4;
- }
-}
-
-/* single_step() is called just before we want to resume the inferior, if we
- want to single-step it but there is no hardware or kernel single-step
- support. We find all the possible targets of the coming instruction and
- breakpoint them.
-
- single_step is also called just after the inferior stops. If we had
- set up a simulated single-step, we undo our damage. */
-
-void
-arc_software_single_step (ignore, insert_breakpoints_p)
- enum target_signal ignore; /* sig but we don't need it */
- int insert_breakpoints_p;
-{
- static CORE_ADDR next_pc, target;
- static int brktrg_p;
- typedef char binsn_quantum[BREAKPOINT_MAX];
- static binsn_quantum break_mem[2];
-
- if (insert_breakpoints_p)
- {
- insn_type type;
- CORE_ADDR pc;
- unsigned long insn;
-
- pc = read_register (PC_REGNUM);
- insn = read_memory_integer (pc, 4);
- type = get_insn_type (insn, pc, &target);
-
- /* Always set a breakpoint for the insn after the branch. */
- next_pc = pc + ((type == NORMAL8 || type == BRANCH8) ? 8 : 4);
- target_insert_breakpoint (next_pc, break_mem[0]);
-
- brktrg_p = 0;
-
- if ((type == BRANCH4 || type == BRANCH8)
- /* Watch out for branches to the following location.
- We just stored a breakpoint there and another call to
- target_insert_breakpoint will think the real insn is the
- breakpoint we just stored there. */
- && target != next_pc)
- {
- brktrg_p = 1;
- target_insert_breakpoint (target, break_mem[1]);
- }
-
- }
- else
- {
- /* Remove breakpoints. */
- target_remove_breakpoint (next_pc, break_mem[0]);
-
- if (brktrg_p)
- target_remove_breakpoint (target, break_mem[1]);
-
- /* Fix the pc. */
- stop_pc -= DECR_PC_AFTER_BREAK;
- write_pc (stop_pc);
- }
-}
-
-#ifdef GET_LONGJMP_TARGET
-/* Figure out where the longjmp will land. Slurp the args out of the stack.
- We expect the first arg to be a pointer to the jmp_buf structure from which
- we extract the pc (JB_PC) that we will land at. The pc is copied into PC.
- This routine returns true on success. */
-
-int
-get_longjmp_target(pc)
- CORE_ADDR *pc;
-{
- char buf[TARGET_PTR_BIT / TARGET_CHAR_BIT];
- CORE_ADDR sp, jb_addr;
-
- sp = read_register (SP_REGNUM);
-
- if (target_read_memory (sp + SP_ARG0, /* Offset of first arg on stack */
- buf,
- TARGET_PTR_BIT / TARGET_CHAR_BIT))
- return 0;
-
- jb_addr = extract_address (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
-
- if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,
- TARGET_PTR_BIT / TARGET_CHAR_BIT))
- return 0;
-
- *pc = extract_address (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT);
-
- return 1;
-}
-#endif /* GET_LONGJMP_TARGET */
-
-/* Disassemble one instruction. */
-
-static int
-arc_print_insn (vma, info)
- bfd_vma vma;
- disassemble_info *info;
-{
- static int current_mach;
- static int current_endian;
- static disassembler_ftype current_disasm;
-
- if (current_disasm == NULL
- || arc_bfd_mach_type != current_mach
- || TARGET_BYTE_ORDER != current_endian)
- {
- current_mach = arc_bfd_mach_type;
- current_endian = TARGET_BYTE_ORDER;
- current_disasm = arc_get_disassembler (current_mach,
- current_endian == BIG_ENDIAN);
- }
-
- return (*current_disasm) (vma, info);
-}
-
-/* Command to set cpu type. */
-
-void
-arc_set_cpu_type_command (args, from_tty)
- char *args;
- int from_tty;
-{
- int i;
-
- if (tmp_arc_cpu_type == NULL || *tmp_arc_cpu_type == '\0')
- {
- printf_unfiltered ("The known ARC cpu types are as follows:\n");
- for (i = 0; arc_cpu_type_table[i].name != NULL; ++i)
- printf_unfiltered ("%s\n", arc_cpu_type_table[i].name);
-
- /* Restore the value. */
- tmp_arc_cpu_type = strsave (arc_cpu_type);
-
- return;
- }
-
- if (!arc_set_cpu_type (tmp_arc_cpu_type))
- {
- error ("Unknown cpu type `%s'.", tmp_arc_cpu_type);
- /* Restore its value. */
- tmp_arc_cpu_type = strsave (arc_cpu_type);
- }
-}
-
-static void
-arc_show_cpu_type_command (args, from_tty)
- char *args;
- int from_tty;
-{
-}
-
-/* Modify the actual cpu type.
- Result is a boolean indicating success. */
-
-int
-arc_set_cpu_type (str)
- char *str;
-{
- int i, j;
-
- if (str == NULL)
- return 0;
-
- for (i = 0; arc_cpu_type_table[i].name != NULL; ++i)
- {
- if (strcasecmp (str, arc_cpu_type_table[i].name) == 0)
- {
- arc_cpu_type = str;
- arc_bfd_mach_type = arc_cpu_type_table[i].value;
- return 1;
- }
- }
-
- return 0;
-}
-
-void
-_initialize_arc_tdep ()
-{
- struct cmd_list_element *c;
-
- c = add_set_cmd ("cpu", class_support, var_string_noescape,
- (char *) &tmp_arc_cpu_type,
- "Set the type of ARC cpu in use.\n\
-This command has two purposes. In a multi-cpu system it lets one\n\
-change the cpu being debugged. It also gives one access to\n\
-cpu-type-specific registers and recognize cpu-type-specific instructions.\
-",
- &setlist);
- c->function.cfunc = arc_set_cpu_type_command;
- c = add_show_from_set (c, &showlist);
- c->function.cfunc = arc_show_cpu_type_command;
-
- /* We have to use strsave here because the `set' command frees it before
- setting a new value. */
- tmp_arc_cpu_type = strsave (DEFAULT_ARC_CPU_TYPE);
- arc_set_cpu_type (tmp_arc_cpu_type);
-
- c = add_set_cmd ("displaypipeline", class_support, var_zinteger,
- (char *) &display_pipeline_p,
- "Set pipeline display (simulator only).\n\
-When enabled, the state of the pipeline after each cycle is displayed.",
- &setlist);
- c = add_show_from_set (c, &showlist);
-
- c = add_set_cmd ("debugpipeline", class_support, var_zinteger,
- (char *) &debug_pipeline_p,
- "Set pipeline debug display (simulator only).\n\
-When enabled, debugging information about the pipeline is displayed.",
- &setlist);
- c = add_show_from_set (c, &showlist);
-
- c = add_set_cmd ("cputimer", class_support, var_zinteger,
- (char *) &cpu_timer,
- "Set maximum cycle count (simulator only).\n\
-Control will return to gdb if the timer expires.\n\
-A negative value disables the timer.",
- &setlist);
- c = add_show_from_set (c, &showlist);
-
- tm_print_insn = arc_print_insn;
-}