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authorStu Grossman <grossman@cygnus>1992-06-19 22:43:49 +0000
committerStu Grossman <grossman@cygnus>1992-06-19 22:43:49 +0000
commit7da1e27dd4814e6e718404f294d3ef63e15054e2 (patch)
tree88de18c03a71c4f3fca192c8d9d597842c686ff6 /gdb/hppa-pinsn.c
parent9aa448333dc03c53f4ed8826251f813123705217 (diff)
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* configure.in, dbxread.c, hppa-coredep.c, hppa-pinsn.c,
hppabsd-core.c, hppabsd-tdep.c, hppabsd-xdep.c, hppahpux-tdep.c, hppahpux-xdep.c, munch, partial-stab.h, tm-hppabsd.h, tm-hppahpux.h, xm-hppabsd.h, xm-hppahpux.h: HPPA merge.
Diffstat (limited to 'gdb/hppa-pinsn.c')
-rw-r--r--gdb/hppa-pinsn.c382
1 files changed, 382 insertions, 0 deletions
diff --git a/gdb/hppa-pinsn.c b/gdb/hppa-pinsn.c
new file mode 100644
index 0000000..5d8df98
--- /dev/null
+++ b/gdb/hppa-pinsn.c
@@ -0,0 +1,382 @@
+/* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
+ Copyright (C) 1989, 1990 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB, the GNU disassembler.
+
+GDB 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 1, or (at your option)
+any later version.
+
+GDB 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 GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+
+#include "defs.h"
+#include "symtab.h"
+#include "opcode/hppa.h"
+
+char *control_reg[] = {"rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
+ "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
+ "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
+ "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
+ "tr4", "tr5", "tr6", "tr7"
+ };
+
+char *compare_cond_names[] = {"", ",=", ",<", ",<=", ",<<", ",<<=", ",sv",
+ ",od", ",tr", ",<>", ",>=", ",>", ",>>=",
+ ",>>", ",nsv", ",ev"
+ };
+char *add_cond_names[] = {"", ",=", ",<", ",<=", ",nuv", ",znv", ",sv",
+ ",od", ",tr", ",<>", ",>=", ",>", ",uv",
+ ",vnz", ",nsv", ",ev"
+ };
+char *logical_cond_names[] = {"", ",=", ",<", ",<=", 0, 0, 0, ",od",
+ ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
+char *unit_cond_names[] = {"", 0, ",sbz", ",shz", ",sdc", 0, ",sbc", ",shc",
+ ",tr", 0, ",nbz", ",nhz", ",ndc", 0, ",nbc", ",nhc"
+ };
+char *shift_cond_names[] = {"", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"};
+
+char *index_compl_names[] = {"", ",m", ",s", ",sm"};
+char *short_ldst_compl_names[] = {"", ",ma", "", ",mb"};
+char *short_bytes_compl_names[] = {"", ",b,m", ",e", ",e,m"};
+char *float_format_names[] = {",sgl", ",dbl", ",quad"};
+char *float_comp_names[] =
+{",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
+ ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
+ ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
+ ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
+ };
+
+/* For a bunch of different instructions form an index into a
+ completer name table. */
+#define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
+ GET_FIELD (insn, 18, 18) << 1)
+
+#define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
+ (GET_FIELD ((insn), 19, 19) ? 8 : 0))
+
+void fput_reg (), fput_const ();
+
+/* Print one instruction from MEMADDR on STREAM. */
+int
+print_insn (memaddr, stream)
+ CORE_ADDR memaddr;
+ FILE *stream;
+{
+ unsigned int insn, i, op;
+
+ read_memory (memaddr, &insn, sizeof (insn));
+
+ for (i = 0; i < NUMOPCODES; ++i)
+ {
+ const struct pa_opcode *opcode = &pa_opcodes[i];
+ if ((insn & opcode->mask) == opcode->match)
+ {
+ register const char *s;
+
+ fputs_filtered (opcode->name, stream);
+
+ if (!index ("cCY<?!@-+&U>~nZFM", opcode->args[0]))
+ fputs_filtered (" ", stream);
+ for (s = opcode->args; *s != '\0'; ++s)
+ {
+ switch (*s)
+ {
+ case 'x':
+ fput_reg (GET_FIELD (insn, 11, 15), stream);
+ break;
+ case 'X':
+ if (GET_FIELD (insn, 25, 25))
+ fput_reg_r (GET_FIELD (insn, 11, 15), stream);
+ else
+ fput_reg (GET_FIELD (insn, 11, 15), stream);
+ break;
+ case 'b':
+ fput_reg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case '^':
+ fput_creg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case 'E':
+ if (GET_FIELD (insn, 25, 25))
+ fput_reg_r (GET_FIELD (insn, 6, 10), stream);
+ else
+ fput_reg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case 't':
+ fput_reg (GET_FIELD (insn, 27, 31), stream);
+ break;
+ case 'v':
+ if (GET_FIELD (insn, 25, 25))
+ fput_reg_r (GET_FIELD (insn, 27, 31), stream);
+ else
+ fput_reg (GET_FIELD (insn, 27, 31), stream);
+ break;
+ case '4':
+ fput_creg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case '6':
+ fput_reg (GET_FIELD (insn, 11, 15), stream);
+ break;
+ case '7':
+ fput_reg (GET_FIELD (insn, 27, 31), stream);
+ break;
+ case '8':
+ fput_reg (GET_FIELD (insn, 16, 20), stream);
+ break;
+ case '9':
+ fput_reg (GET_FIELD (insn, 21, 25), stream);
+ break;
+ case '5':
+ fput_const (extract_5_load (insn), stream);
+ break;
+ /* case 's': */
+ case 'S':
+ fprintf_filtered (stream, "sr%d", extract_3 (insn));
+ break;
+ case 'c':
+ fprintf_filtered (stream, "%s ",
+ index_compl_names[GET_COMPL (insn)]);
+ break;
+ case 'C':
+ fprintf_filtered (stream, "%s ",
+ short_ldst_compl_names[GET_COMPL (insn)]);
+ break;
+ case 'Y':
+ fprintf_filtered (stream, "%s ",
+ short_bytes_compl_names[GET_COMPL (insn)]);
+ break;
+ /* these four conditions are for the set of instructions
+ which distinguish true/false conditions by opcode rather
+ than by the 'f' bit (sigh): comb, comib, addb, addib */
+ case '<':
+ fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)],
+ stream);
+ break;
+ case '?':
+ fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18) + 8],
+ stream);
+ break;
+ case '!':
+ fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18)],
+ stream);
+ break;
+ case '@':
+ fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18) + 8],
+ stream);
+ break;
+ case '-':
+ fprintf_filtered (stream, "%s ",
+ compare_cond_names[GET_COND (insn)]);
+ break;
+ case '+':
+ fprintf_filtered (stream, "%s ",
+ add_cond_names[GET_FIELD (insn, 16, 18)]);
+ break;
+
+ case '&':
+ fprintf_filtered (stream, "%s ",
+ logical_cond_names[GET_COND (insn)]);
+ break;
+ case 'U':
+ fprintf_filtered (stream, "%s ",
+ unit_cond_names[GET_COND (insn)]);
+ break;
+ case '>':
+ case '~':
+ fprintf_filtered (stream, "%s ",
+ shift_cond_names[GET_FIELD (insn, 16, 18)]);
+ break;
+ case 'V':
+ fput_const (extract_5_store (insn), stream);
+ break;
+ case 'i':
+ fput_const (extract_11 (insn), stream);
+ break;
+ case 'j':
+ fput_const (extract_14 (insn), stream);
+ break;
+ case 'k':
+ fput_const (extract_21 (insn), stream);
+ break;
+ case 'n':
+ if (insn & 0x2)
+ fprintf_filtered (stream, ",n ");
+ else
+ fprintf_filtered (stream, " ");
+ break;
+ case 'w':
+ print_address (memaddr + 8 + extract_12 (insn), stream);
+ break;
+ case 'W':
+ /* don't interpret an address if it's an external branch
+ instruction. */
+ op = GET_FIELD (insn, 0, 5);
+ if (op != 0x38 /* be */ && op != 0x39 /* ble */)
+ print_address (memaddr + 8 + extract_17 (insn), stream);
+ else
+ fput_const (extract_17 (insn), stream);
+ break;
+ case 'B':
+ {
+ int space;
+ if (space = GET_FIELD (insn, 16, 17))
+ fprintf_filtered (stream, "sr%d,", space);
+ fput_reg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ }
+ case 'p':
+ fprintf_filtered (stream, "%d",
+ 31 - GET_FIELD (insn, 22, 26));
+ break;
+ case 'P':
+ fprintf_filtered (stream, "%d",
+ GET_FIELD (insn, 22, 26));
+ break;
+ case 'T':
+ fprintf_filtered (stream, "%d",
+ 32 - GET_FIELD (insn, 27, 31));
+ break;
+ case 'A':
+ fput_const (GET_FIELD (insn, 6, 18), stream);
+ break;
+ case 'Z':
+ if (GET_FIELD (insn, 26, 26))
+ fprintf_filtered (stream, ",m ");
+ else
+ fprintf_filtered (stream, " ");
+ break;
+ case 'D':
+ fput_const (GET_FIELD (insn, 6, 31), stream);
+ break;
+ case 'f':
+ fprintf_filtered (stream, ",%d", GET_FIELD (insn, 23, 25));
+ break;
+ case 'O':
+ fput_const ((GET_FIELD (insn, 6,20) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case 'o':
+ fput_const (GET_FIELD (insn, 6, 20), stream);
+ break;
+ case '2':
+ fput_const ((GET_FIELD (insn, 6, 22) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case '1':
+ fput_const ((GET_FIELD (insn, 11, 20) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case '0':
+ fput_const ((GET_FIELD (insn, 16, 20) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case 'u':
+ fprintf_filtered (stream, "%d", GET_FIELD (insn, 23, 25));
+ break;
+ case 'F':
+ /* if no destination completer, need a space here */
+ if (GET_FIELD (insn, 21, 22) == 1)
+ fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)],
+ stream);
+ else
+ fprintf_filtered (stream, "%s ",
+ float_format_names[GET_FIELD
+ (insn, 19, 20)]);
+ break;
+ case 'G':
+ fprintf_filtered (stream, "%s ",
+ float_format_names[GET_FIELD (insn,
+ 17, 18)]);
+ break;
+ case 'H':
+ fputs_filtered (float_format_names[GET_FIELD
+ (insn, 26, 26)], stream);
+ break;
+ case 'M':
+ fputs_filtered (float_comp_names[GET_FIELD (insn, 27, 31)],
+ stream);
+ break;
+ case '}':
+ fprintf_filtered (stream, "fp%d", GET_FIELD (insn, 6, 10));
+ break;
+ case '|':
+ fprintf_filtered (stream, "fp%d", GET_FIELD (insn, 11, 15));
+ break;
+ case '{':
+ if (GET_FIELD (insn, 23, 25) == 0)
+ fprintf_filtered (stream, "fp%d",
+ GET_FIELD (insn, 27, 31));
+ else
+ fprintf_filtered (stream, "cp%d",
+ GET_FIELD (insn, 27, 31));
+ break;
+ default:
+ fprintf_filtered (stream, "%c", *s);
+ break;
+ }
+ }
+ return sizeof(insn);
+ }
+ }
+ fprintf_filtered (stream, "%#8x", insn);
+ return sizeof(insn);
+}
+
+/* Utility function to print registers */
+
+void
+fput_reg (reg, stream)
+ unsigned reg;
+ FILE *stream;
+{
+ if (reg)
+ fputs_filtered (reg_names[reg], stream);
+ else
+ fputs_filtered ("r0", stream);
+}
+
+void
+fput_reg_r (reg, stream)
+ unsigned reg;
+ FILE *stream;
+{
+ if (reg)
+ fputs_filtered (reg_names[reg], stream);
+ else
+ fputs_filtered ("r0", stream);
+ fputs_filtered ("R", stream);
+}
+
+void
+fput_creg (reg, stream)
+ unsigned reg;
+ FILE *stream;
+{
+ fputs_filtered (control_reg[reg], stream);
+}
+
+/* print constants with sign */
+
+void
+fput_const (num, stream)
+ unsigned num;
+ FILE *stream;
+{
+ if ((int)num < 0)
+ fprintf_filtered (stream, "-%x", -(int)num);
+ else
+ fprintf_filtered (stream, "%x", num);
+}