x86: allow suffix-less movzw and 64-bit movzb

[deliverable/binutils-gdb.git] / opcodes / i386-opc.tbl

diff --git a/opcodes/i386-opc.tbl b/opcodes/i386-opc.tbl
index bd97c0e5df4e318611b3ef2028e154ee4848cd4c..161bc08232996f24c4b1818749a2f0b9bfa6b14b 100644 (file)
--- a/opcodes/i386-opc.tbl
+++ b/opcodes/i386-opc.tbl
@@ -74,18 +74,9 @@ movsx, 2, 0xfbf, None, 2, Cpu386, Modrm|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf
 movsx, 2, 0x63, None, 1, Cpu64, Modrm|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64|IntelSyntax, { Reg32|Dword|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
 movsxd, 2, 0x63, None, 1, Cpu64, Modrm|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64, { Reg32|Dword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
 
-// Move with zero extend.  We can't remove "movzb" since existing
-// assembly codes may use it.
-movzb, 2, 0xfb6, None, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
-// "movzbl" & "movzbw" should not be unified into "movzb" for
-// consistency with the sign extending moves above.
-movzbl, 2, 0xfb6, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32 }
-movzbw, 2, 0xfb6, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16 }
-movzwl, 2, 0xfb7, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32 }
-// These instructions are not particulary useful, since the zero extend
-// 32->64 is implicit, but we can encode them.
-movzbq, 2, 0xfb6, None, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
-movzwq, 2, 0xfb7, None, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
+// Move with zero extend.
+movzb, 2, 0xfb6, None, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
+movzw, 2, 0xfb7, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_sSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32|Reg64 }
 // Intel Syntax next 2 insns (the 64-bit variants are not particulary
 // useful since the zero extend 32->64 is implicit, but we can encode them).
 movzx, 2, 0xfb6, None, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTSyntax, { Reg8|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }