diff options
Diffstat (limited to 'gdb/ns32k-tdep.c')
-rw-r--r-- | gdb/ns32k-tdep.c | 88 |
1 files changed, 45 insertions, 43 deletions
diff --git a/gdb/ns32k-tdep.c b/gdb/ns32k-tdep.c index bf5208a2b5a..fc166de5ee0 100644 --- a/gdb/ns32k-tdep.c +++ b/gdb/ns32k-tdep.c @@ -2,21 +2,22 @@ Copyright 1986, 1988, 1991, 1992, 1994, 1995 Free Software Foundation, Inc. -This file is part of GDB. + 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 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. + 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. */ + 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" @@ -36,12 +37,13 @@ merlin_skip_prologue (pc) register int op = read_memory_integer (pc, 1); if (op == 0x82) { - op = read_memory_integer (pc+2,1); + op = read_memory_integer (pc + 2, 1); if ((op & 0x80) == 0) pc += 3; else if ((op & 0xc0) == 0x80) pc += 4; - else pc += 6; + else + pc += 6; } return pc; } @@ -53,14 +55,14 @@ umax_skip_prologue (pc) register unsigned char op = read_memory_integer (pc, 1); if (op == 0x82) { - op = read_memory_integer (pc+2,1); + op = read_memory_integer (pc + 2, 1); if ((op & 0x80) == 0) pc += 3; else if ((op & 0xc0) == 0x80) pc += 4; else pc += 6; - } + } return pc; } @@ -78,22 +80,22 @@ merlin_frame_num_args (fi) int width; pc = FRAME_SAVED_PC (fi); - insn = read_memory_integer (pc,2); + insn = read_memory_integer (pc, 2); addr_mode = (insn >> 11) & 0x1f; insn = insn & 0x7ff; if ((insn & 0x7fc) == 0x57c - && addr_mode == 0x14) /* immediate */ + && addr_mode == 0x14) /* immediate */ { - if (insn == 0x57c) /* adjspb */ + if (insn == 0x57c) /* adjspb */ width = 1; - else if (insn == 0x57d) /* adjspw */ + else if (insn == 0x57d) /* adjspw */ width = 2; - else if (insn == 0x57f) /* adjspd */ + else if (insn == 0x57f) /* adjspd */ width = 4; - numargs = read_memory_integer (pc+2,width); + numargs = read_memory_integer (pc + 2, width); if (width > 1) flip_bytes (&numargs, width); - numargs = - sign_extend (numargs, width*8) / 4; + numargs = -sign_extend (numargs, width * 8) / 4; } else numargs = -1; @@ -124,22 +126,22 @@ umax_frame_num_args (fi) pc = ((enter_addr == 1) ? SAVED_PC_AFTER_CALL (fi) : FRAME_SAVED_PC (fi)); - insn = read_memory_integer (pc,2); + insn = read_memory_integer (pc, 2); addr_mode = (insn >> 11) & 0x1f; insn = insn & 0x7ff; if ((insn & 0x7fc) == 0x57c - && addr_mode == 0x14) /* immediate */ + && addr_mode == 0x14) /* immediate */ { - if (insn == 0x57c) /* adjspb */ + if (insn == 0x57c) /* adjspb */ width = 1; - else if (insn == 0x57d) /* adjspw */ + else if (insn == 0x57d) /* adjspw */ width = 2; - else if (insn == 0x57f) /* adjspd */ + else if (insn == 0x57f) /* adjspd */ width = 4; - numargs = read_memory_integer (pc+2,width); + numargs = read_memory_integer (pc + 2, width); if (width > 1) flip_bytes (&numargs, width); - numargs = - sign_extend (numargs, width*8) / 4; + numargs = -sign_extend (numargs, width * 8) / 4; } } return numargs; @@ -149,7 +151,7 @@ umax_frame_num_args (fi) sign_extend (value, bits) { value = value & ((1 << bits) - 1); - return (value & (1 << (bits-1)) + return (value & (1 << (bits - 1)) ? value | (~((1 << bits) - 1)) : value); } @@ -164,8 +166,8 @@ flip_bytes (ptr, count) while (count > 0) { tmp = *ptr; - ptr[0] = ptr[count-1]; - ptr[count-1] = tmp; + ptr[0] = ptr[count - 1]; + ptr[count - 1] = tmp; ptr++; count -= 2; } @@ -182,17 +184,17 @@ ns32k_localcount (enter_pc) unsigned char localtype; int localcount; - localtype = read_memory_integer (enter_pc+2, 1); + localtype = read_memory_integer (enter_pc + 2, 1); if ((localtype & 0x80) == 0) localcount = localtype; else if ((localtype & 0xc0) == 0x80) localcount = (((localtype & 0x3f) << 8) - | (read_memory_integer (enter_pc+3, 1) & 0xff)); + | (read_memory_integer (enter_pc + 3, 1) & 0xff)); else localcount = (((localtype & 0x3f) << 24) - | ((read_memory_integer (enter_pc+3, 1) & 0xff) << 16) - | ((read_memory_integer (enter_pc+4, 1) & 0xff) << 8 ) - | (read_memory_integer (enter_pc+5, 1) & 0xff)); + | ((read_memory_integer (enter_pc + 3, 1) & 0xff) << 16) + | ((read_memory_integer (enter_pc + 4, 1) & 0xff) << 8) + | (read_memory_integer (enter_pc + 5, 1) & 0xff)); return localcount; } @@ -226,17 +228,17 @@ ns32k_get_enter_addr (pc) return 0; if (ns32k_about_to_return (pc)) - return 1; /* after exit */ + return 1; /* after exit */ enter_addr = get_pc_function_start (pc); - if (pc == enter_addr) - return 1; /* before enter */ + if (pc == enter_addr) + return 1; /* before enter */ op = read_memory_integer (enter_addr, 1); if (op != 0x82) - return 0; /* function has no enter/exit */ + return 0; /* function has no enter/exit */ - return enter_addr; /* pc is between enter and exit */ + return enter_addr; /* pc is between enter and exit */ } |