diff options
| author | Alexandre Oliva <aoliva@redhat.com> | 2000-05-26 01:54:33 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@redhat.com> | 2000-05-26 01:54:33 +0000 |
| commit | d60622826d14374d5b18ca343c4aae6627e58609 (patch) | |
| tree | d590aee20608e7b1e86fa2d47861ddcfe464109a /opcodes | |
| parent | 0a44c2b16f06f5f84edf9cd3aeca67b764403fe8 (diff) | |
| download | gdb-d60622826d14374d5b18ca343c4aae6627e58609.zip gdb-d60622826d14374d5b18ca343c4aae6627e58609.tar.gz gdb-d60622826d14374d5b18ca343c4aae6627e58609.tar.bz2 | |
* m10300-dis.c (disassemble): Don't assume 32-bit longs when
sign-extending operands.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 5 | ||||
| -rw-r--r-- | opcodes/m10300-dis.c | 27 |
2 files changed, 19 insertions, 13 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index a69d21d..60ef03b 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,8 @@ +Thu May 25 22:53:20 2000 Alexandre Oliva <aoliva@cygnus.com> + + * m10300-dis.c (disassemble): Don't assume 32-bit longs when + sign-extending operands. + Mon May 15 15:18:07 2000 Donald Lindsay <dlindsay@cygnus.com> * d10v-opc.c (d10v_opcodes): add ALONE tag to all short branches diff --git a/opcodes/m10300-dis.c b/opcodes/m10300-dis.c index 554d328..c15661a 100644 --- a/opcodes/m10300-dis.c +++ b/opcodes/m10300-dis.c @@ -484,6 +484,8 @@ disassemble (memaddr, info, insn, size) temp = extension >> operand->shift; temp &= ((1 << (32 - operand->bits)) - 1); value |= temp; + value = ((value ^ (((unsigned long)1) << 31)) + - (((unsigned long)1) << 31)); } else if ((operand->flags & MN10300_OPERAND_24BIT) != 0) { @@ -494,7 +496,7 @@ disassemble (memaddr, info, insn, size) temp &= ((1 << (24 - operand->bits)) - 1); value |= temp; if ((operand->flags & MN10300_OPERAND_SIGNED) != 0) - value = ((value & 0xffffff) ^ (~0x7fffff)) + 0x800000; + value = ((value & 0xffffff) ^ 0x800000) - 0x800000; } else if ((operand->flags & MN10300_OPERAND_EXTENDED) != 0) { @@ -508,11 +510,10 @@ disassemble (memaddr, info, insn, size) } if ((operand->flags & MN10300_OPERAND_SIGNED) != 0 - /* These are properly extended by the code above. */ - && ((operand->flags & MN10300_OPERAND_24BIT) == 0) - ) - value = ((long)(value << (32 - operand->bits)) - >> (32 - operand->bits)); + /* These are properly extended by the code above. */ + && ((operand->flags & MN10300_OPERAND_24BIT) == 0)) + value = ((value ^ (((unsigned long)1) << (operand->bits - 1))) + - (((unsigned long)1) << (operand->bits - 1))); if (!nocomma && (!paren @@ -525,14 +526,14 @@ disassemble (memaddr, info, insn, size) { value = ((insn >> (operand->shift + extra_shift)) & ((1 << operand->bits) - 1)); - (*info->fprintf_func) (info->stream, "d%d", value); + (*info->fprintf_func) (info->stream, "d%d", (int)value); } else if ((operand->flags & MN10300_OPERAND_AREG) != 0) { value = ((insn >> (operand->shift + extra_shift)) & ((1 << operand->bits) - 1)); - (*info->fprintf_func) (info->stream, "a%d", value); + (*info->fprintf_func) (info->stream, "a%d", (int)value); } else if ((operand->flags & MN10300_OPERAND_SP) != 0) @@ -549,11 +550,11 @@ disassemble (memaddr, info, insn, size) value = ((insn >> (operand->shift + extra_shift)) & ((1 << operand->bits) - 1)); if (value < 8) - (*info->fprintf_func) (info->stream, "r%d", value); + (*info->fprintf_func) (info->stream, "r%d", (int)value); else if (value < 12) - (*info->fprintf_func) (info->stream, "a%d", value - 8); + (*info->fprintf_func) (info->stream, "a%d", (int)value - 8); else - (*info->fprintf_func) (info->stream, "d%d", value - 12); + (*info->fprintf_func) (info->stream, "d%d", (int)value - 12); } else if ((operand->flags & MN10300_OPERAND_XRREG) != 0) @@ -563,7 +564,7 @@ disassemble (memaddr, info, insn, size) if (value == 0) (*info->fprintf_func) (info->stream, "sp", value); else - (*info->fprintf_func) (info->stream, "xr%d", value); + (*info->fprintf_func) (info->stream, "xr%d", (int)value); } else if ((operand->flags & MN10300_OPERAND_USP) != 0) @@ -670,7 +671,7 @@ disassemble (memaddr, info, insn, size) } else - (*info->fprintf_func) (info->stream, "%d", value); + (*info->fprintf_func) (info->stream, "%ld", (long)value); } /* All done. */ break; |