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This in particular requires splitting each of the templates for the assembler and separating decode of the register and memory forms in the disassembler. --- a/gas/config/tc-i386-intel.c +++ b/gas/config/tc-i386-intel.c @@ -697,7 +697,9 @@ i386_intel_operand (char *operand_string i.types[this_operand].bitfield.word = 1; if (got_a_float == 2) /* "fi..." */ suffix = SHORT_MNEM_SUFFIX; - else + else if ((current_templates->start->base_opcode | 1) != 0x03 + || (current_templates->start->opcode_modifier.opcodespace + != SPACE_0F)) /* lar, lsl */ suffix = WORD_MNEM_SUFFIX; break; --- a/gas/testsuite/gas/i386/intel.d +++ b/gas/testsuite/gas/i386/intel.d @@ -698,6 +698,14 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 0f 4b 90 90 90 90 90 cmovnp -0x6f6f6f70\(%eax\),%edx [ ]*[a-f0-9]+: 66 0f 4a 90 90 90 90 90 cmovp -0x6f6f6f70\(%eax\),%dx [ ]*[a-f0-9]+: 66 0f 4b 90 90 90 90 90 cmovnp -0x6f6f6f70\(%eax\),%dx +[ ]*[a-f0-9]+: 0f 02 c0 lar %eax,%eax +[ ]*[a-f0-9]+: 66 0f 02 c0 lar %ax,%ax +[ ]*[a-f0-9]+: 0f 02 00 lar \(%eax\),%eax +[ ]*[a-f0-9]+: 66 0f 02 00 lar \(%eax\),%ax +[ ]*[a-f0-9]+: 0f 03 c0 lsl %eax,%eax +[ ]*[a-f0-9]+: 66 0f 03 c0 lsl %ax,%ax +[ ]*[a-f0-9]+: 0f 03 00 lsl \(%eax\),%eax +[ ]*[a-f0-9]+: 66 0f 03 00 lsl \(%eax\),%ax [ ]*[a-f0-9]+: 8b 04 04 mov \(%esp,%eax(,1)?\),%eax [ ]*[a-f0-9]+: 8b 04 20 mov \(%eax(,%eiz)?(,1)?\),%eax [ ]*[a-f0-9]+: c4 e2 69 92 04 08 vgatherdps %xmm2,\(%eax,%xmm1(,1)?\),%xmm0 --- a/gas/testsuite/gas/i386/intel.s +++ b/gas/testsuite/gas/i386/intel.s @@ -699,6 +699,16 @@ fidivr dword ptr [ebx] cmovpe dx, 0x90909090[eax] cmovpo dx, 0x90909090[eax] + lar eax, eax + lar ax, ax + lar eax, word ptr [eax] + lar ax, word ptr [eax] + + lsl eax, eax + lsl ax, ax + lsl eax, word ptr [eax] + lsl ax, word ptr [eax] + # Check base/index swapping .allow_index_reg mov eax, [eax+esp] --- a/gas/testsuite/gas/i386/intel-intel.d +++ b/gas/testsuite/gas/i386/intel-intel.d @@ -232,8 +232,8 @@ Disassembly of section .text: [ ]*[a-f0-9]+: e5 90 + in eax,0x90 [ ]*[a-f0-9]+: e6 90 + out 0x90,al [ ]*[a-f0-9]+: e7 90 + out 0x90,eax -[ ]*[a-f0-9]+: e8 90 90 90 90 + call 90909373 -[ ]*[a-f0-9]+: e9 90 90 90 90 + jmp 90909378 +[ ]*[a-f0-9]+: e8 90 90 90 90 + call 90909... +[ ]*[a-f0-9]+: e9 90 90 90 90 + jmp 90909... [ ]*[a-f0-9]+: ea 90 90 90 90 90 90 jmp 0x9090:0x90909090 [ ]*[a-f0-9]+: eb 90 + jmp 281 [ ]*[a-f0-9]+: ec + in al,dx @@ -308,22 +308,22 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 0f 77 + emms [ ]*[a-f0-9]+: 0f 7e 90 90 90 90 90 movd DWORD PTR \[eax-0x6f6f6f70\],mm2 [ ]*[a-f0-9]+: 0f 7f 90 90 90 90 90 movq QWORD PTR \[eax-0x6f6f6f70\],mm2 -[ ]*[a-f0-9]+: 0f 80 90 90 90 90 + jo 909094e6 -[ ]*[a-f0-9]+: 0f 81 90 90 90 90 + jno 909094ec -[ ]*[a-f0-9]+: 0f 82 90 90 90 90 + jb 909094f2 -[ ]*[a-f0-9]+: 0f 83 90 90 90 90 + jae 909094f8 -[ ]*[a-f0-9]+: 0f 84 90 90 90 90 + je 909094fe -[ ]*[a-f0-9]+: 0f 85 90 90 90 90 + jne 90909504 -[ ]*[a-f0-9]+: 0f 86 90 90 90 90 + jbe 9090950a -[ ]*[a-f0-9]+: 0f 87 90 90 90 90 + ja 90909510 -[ ]*[a-f0-9]+: 0f 88 90 90 90 90 + js 90909516 -[ ]*[a-f0-9]+: 0f 89 90 90 90 90 + jns 9090951c -[ ]*[a-f0-9]+: 0f 8a 90 90 90 90 + jp 90909522 -[ ]*[a-f0-9]+: 0f 8b 90 90 90 90 + jnp 90909528 -[ ]*[a-f0-9]+: 0f 8c 90 90 90 90 + jl 9090952e -[ ]*[a-f0-9]+: 0f 8d 90 90 90 90 + jge 90909534 -[ ]*[a-f0-9]+: 0f 8e 90 90 90 90 + jle 9090953a -[ ]*[a-f0-9]+: 0f 8f 90 90 90 90 + jg 90909540 +[ ]*[a-f0-9]+: 0f 80 90 90 90 90 + jo 90909... +[ ]*[a-f0-9]+: 0f 81 90 90 90 90 + jno 90909... +[ ]*[a-f0-9]+: 0f 82 90 90 90 90 + jb 90909... +[ ]*[a-f0-9]+: 0f 83 90 90 90 90 + jae 90909... +[ ]*[a-f0-9]+: 0f 84 90 90 90 90 + je 90909... +[ ]*[a-f0-9]+: 0f 85 90 90 90 90 + jne 90909... +[ ]*[a-f0-9]+: 0f 86 90 90 90 90 + jbe 90909... +[ ]*[a-f0-9]+: 0f 87 90 90 90 90 + ja 90909... +[ ]*[a-f0-9]+: 0f 88 90 90 90 90 + js 90909... +[ ]*[a-f0-9]+: 0f 89 90 90 90 90 + jns 90909... +[ ]*[a-f0-9]+: 0f 8a 90 90 90 90 + jp 90909... +[ ]*[a-f0-9]+: 0f 8b 90 90 90 90 + jnp 90909... +[ ]*[a-f0-9]+: 0f 8c 90 90 90 90 + jl 90909... +[ ]*[a-f0-9]+: 0f 8d 90 90 90 90 + jge 90909... +[ ]*[a-f0-9]+: 0f 8e 90 90 90 90 + jle 90909... +[ ]*[a-f0-9]+: 0f 8f 90 90 90 90 + jg 90909... [ ]*[a-f0-9]+: 0f 90 80 90 90 90 90 seto BYTE PTR \[eax-0x6f6f6f70\] [ ]*[a-f0-9]+: 0f 91 80 90 90 90 90 setno BYTE PTR \[eax-0x6f6f6f70\] [ ]*[a-f0-9]+: 0f 92 80 90 90 90 90 setb BYTE PTR \[eax-0x6f6f6f70\] @@ -532,7 +532,7 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 66 d3 90 90 90 90 90 rcl WORD PTR \[eax-0x6f6f6f70\],cl [ ]*[a-f0-9]+: 66 e5 90 + in ax,0x90 [ ]*[a-f0-9]+: 66 e7 90 + out 0x90,ax -[ ]*[a-f0-9]+: 66 e8 8f 90 + callw 9922 +[ ]*[a-f0-9]+: 66 e8 8f 90 + callw 9... [ ]*[a-f0-9]+: 66 ea 90 90 90 90 + jmp 0x9090:0x9090 [ ]*[a-f0-9]+: 66 ed + in ax,dx [ ]*[a-f0-9]+: 66 ef + out dx,ax @@ -699,6 +699,14 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 0f 4b 90 90 90 90 90 cmovnp edx,DWORD PTR \[eax-0x6f6f6f70\] [ ]*[a-f0-9]+: 66 0f 4a 90 90 90 90 90 cmovp dx,WORD PTR \[eax-0x6f6f6f70\] [ ]*[a-f0-9]+: 66 0f 4b 90 90 90 90 90 cmovnp dx,WORD PTR \[eax-0x6f6f6f70\] +[ ]*[a-f0-9]+: 0f 02 c0 + lar eax,eax +[ ]*[a-f0-9]+: 66 0f 02 c0 + lar ax,ax +[ ]*[a-f0-9]+: 0f 02 00 + lar eax,WORD PTR \[eax\] +[ ]*[a-f0-9]+: 66 0f 02 00 + lar ax,WORD PTR \[eax\] +[ ]*[a-f0-9]+: 0f 03 c0 + lsl eax,eax +[ ]*[a-f0-9]+: 66 0f 03 c0 + lsl ax,ax +[ ]*[a-f0-9]+: 0f 03 00 + lsl eax,WORD PTR \[eax\] +[ ]*[a-f0-9]+: 66 0f 03 00 + lsl ax,WORD PTR \[eax\] [ ]*[a-f0-9]+: 8b 04 04 + mov eax,DWORD PTR \[esp\+eax\*1\] [ ]*[a-f0-9]+: 8b 04 20 + mov eax,DWORD PTR \[eax\+eiz\*1\] [ ]*[a-f0-9]+: c4 e2 69 92 04 08 + vgatherdps xmm0,DWORD PTR \[eax\+xmm1\*1\],xmm2 --- a/gas/testsuite/gas/i386/intelbad.l +++ b/gas/testsuite/gas/i386/intelbad.l @@ -161,3 +161,11 @@ .*:181: Error: .* .*:183: Error: .* .*:184: Error: .* +.*:186: Error: .* +.*:187: Error: .* +.*:188: Error: .* +.*:189: Error: .* +.*:191: Error: .* +.*:192: Error: .* +.*:193: Error: .* +.*:194: Error: .* --- a/gas/testsuite/gas/i386/intelbad.s +++ b/gas/testsuite/gas/i386/intelbad.s @@ -182,3 +182,13 @@ start: fild far ptr [ebx] fist near ptr [ebx] + + lar eax, ax + lar ax, eax + lar eax, dword ptr [eax] + lar ax, dword ptr [eax] + + lsl eax, ax + lsl ax, eax + lsl eax, dword ptr [eax] + lsl ax, dword ptr [eax] --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -833,6 +833,8 @@ enum MOD_0F01_REG_3, MOD_0F01_REG_5, MOD_0F01_REG_7, + MOD_0F02, + MOD_0F03, MOD_0F12_PREFIX_0, MOD_0F12_PREFIX_2, MOD_0F13, @@ -2115,8 +2117,8 @@ static const struct dis386 dis386_twobyt /* 00 */ { REG_TABLE (REG_0F00 ) }, { REG_TABLE (REG_0F01 ) }, - { "larS", { Gv, Ew }, 0 }, - { "lslS", { Gv, Ew }, 0 }, + { MOD_TABLE (MOD_0F02) }, + { MOD_TABLE (MOD_0F03) }, { Bad_Opcode }, { "syscall", { XX }, 0 }, { "clts", { XX }, 0 }, @@ -8198,6 +8200,16 @@ static const struct dis386 mod_table[][2 { RM_TABLE (RM_0F01_REG_7_MOD_3) }, }, { + /* MOD_0F02 */ + { "larS", { Gv, Mw }, 0 }, + { "larS", { Gv, Ev }, 0 }, + }, + { + /* MOD_0F03 */ + { "lslS", { Gv, Mw }, 0 }, + { "lslS", { Gv, Ev }, 0 }, + }, + { /* MOD_0F12_PREFIX_0 */ { "movlpX", { XM, EXq }, 0 }, { "movhlps", { XM, EXq }, 0 }, --- a/opcodes/i386-opc.tbl +++ b/opcodes/i386-opc.tbl @@ -574,14 +574,16 @@ nop, 0x90, None, 0, NoSuf|RepPrefixOk, { // Protection control. arpl, 0x63, None, Cpu286|CpuNo64, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16, Reg16|Word|Unspecified|BaseIndex } -lar, 0xf02, None, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex, Reg16|Reg32|Reg64 } +lar, 0xf02, None, Cpu286, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64 } +lar, 0xf02, None, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Word|Unspecified|BaseIndex, Reg16|Reg32|Reg64 } lgdt, 0xf01, 2, Cpu286|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Fword|Unspecified|BaseIndex } lgdt, 0xf01, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Tbyte|Unspecified|BaseIndex } lidt, 0xf01, 3, Cpu286|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Fword|Unspecified|BaseIndex } lidt, 0xf01, 3, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Tbyte|Unspecified|BaseIndex } lldt, 0xf00, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex } lmsw, 0xf01, 6, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex } -lsl, 0xf03, None, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex, Reg16|Reg32|Reg64 } +lsl, 0xf03, None, Cpu286, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64 } +lsl, 0xf03, None, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Word|Unspecified|BaseIndex, Reg16|Reg32|Reg64 } ltr, 0xf00, 3, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex } sgdt, 0xf01, 0, Cpu286|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Fword|Unspecified|BaseIndex }