diff options
| author | Jan Hubicka <jh@suse.cz> | 2002-02-11 12:00:54 +0000 |
|---|---|---|
| committer | Jan Hubicka <jh@suse.cz> | 2002-02-11 12:00:54 +0000 |
| commit | 7ecd2f8b9dfd610b8c62cedb87ed513289c85c04 (patch) | |
| tree | b8d7d2357a0d46b3e77d20a883e1d1ad9d06faff /gas | |
| parent | 85a33fe281bfb3c34729302d0e4602bb1ee4dcc2 (diff) | |
| download | gdb-7ecd2f8b9dfd610b8c62cedb87ed513289c85c04.zip gdb-7ecd2f8b9dfd610b8c62cedb87ed513289c85c04.tar.gz gdb-7ecd2f8b9dfd610b8c62cedb87ed513289c85c04.tar.bz2 | |
* i386.c (md_assemble): Support 32bit address prefix.
(i386_displacement): Likewise.
(i386_index_check): Accept 32bit addressing in 64bit mode.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/config/tc-i386.c | 55 |
2 files changed, 47 insertions, 14 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 234f835..12841ed 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,9 @@ +Mon Feb 11 12:59:29 CET 2002 Jan Hubicka <jh@suse.cz> + + * i386.c (md_assemble): Support 32bit address prefix. + (i386_displacement): Likewise. + (i386_index_check): Accept 32bit addressing in 64bit mode. + 2002-02-11 Alexandre Oliva <aoliva@redhat.com> * config/tc-sh.c (dot): Removed unused function. diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 650621f..cce25d8 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -1298,6 +1298,7 @@ md_assemble (line) /* If we are in 16-bit mode, do not allow addr16 or data16. Similarly, in 32-bit mode, do not allow addr32 or data32. */ if ((current_templates->start->opcode_modifier & (Size16 | Size32)) + && flag_code != CODE_64BIT && (((current_templates->start->opcode_modifier & Size32) != 0) ^ (flag_code == CODE_16BIT))) { @@ -2263,6 +2264,14 @@ md_assemble (line) return; } + if (i.suffix != QWORD_MNEM_SUFFIX && (flag_code == CODE_64BIT) + && !(i.tm.opcode_modifier & IgnoreSize) + && (i.tm.opcode_modifier & JumpByte)) + { + if (! add_prefix (ADDR_PREFIX_OPCODE)) + return; + } + /* Set mode64 for an operand. */ if (i.suffix == QWORD_MNEM_SUFFIX && !(i.tm.opcode_modifier & NoRex64)) @@ -2415,13 +2424,15 @@ md_assemble (line) if (! i.index_reg) { /* Operand is just <disp> */ - if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0)) + if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0) + && (flag_code != CODE_64BIT)) { i.rm.regmem = NO_BASE_REGISTER_16; i.types[op] &= ~Disp; i.types[op] |= Disp16; } - else if (flag_code != CODE_64BIT) + else if (flag_code != CODE_64BIT + || (i.prefix[ADDR_PREFIX] != 0)) { i.rm.regmem = NO_BASE_REGISTER; i.types[op] &= ~Disp; @@ -3438,10 +3449,13 @@ i386_displacement (disp_start, disp_end) #endif int bigdisp = Disp32; - if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0)) - bigdisp = Disp16; if (flag_code == CODE_64BIT) - bigdisp = Disp64; + { + if (!i.prefix[ADDR_PREFIX]) + bigdisp = Disp64; + } + else if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0)) + bigdisp = Disp16; i.types[this_operand] |= bigdisp; exp = &disp_expressions[i.disp_operands]; @@ -3596,15 +3610,28 @@ i386_index_check (operand_string) ok = 1; if (flag_code == CODE_64BIT) { - /* 64bit checks. */ - if ((i.base_reg - && ((i.base_reg->reg_type & Reg64) == 0) - && (i.base_reg->reg_type != BaseIndex - || i.index_reg)) - || (i.index_reg - && ((i.index_reg->reg_type & (Reg64|BaseIndex)) - != (Reg64|BaseIndex)))) - ok = 0; + if (i.prefix[ADDR_PREFIX] == 0) + { + /* 64bit checks. */ + if ((i.base_reg + && ((i.base_reg->reg_type & Reg64) == 0) + && (i.base_reg->reg_type != BaseIndex + || i.index_reg)) + || (i.index_reg + && ((i.index_reg->reg_type & (Reg64|BaseIndex)) + != (Reg64|BaseIndex)))) + ok = 0; + } + else + { + /* 32bit checks. */ + if ((i.base_reg + && (i.base_reg->reg_type & (Reg32 | RegRex)) != Reg32) + || (i.index_reg + && ((i.index_reg->reg_type & (Reg32|BaseIndex|RegRex)) + != (Reg32|BaseIndex)))) + ok = 0; + } } else { |