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authorGabe Black <gblack@eecs.umich.edu>2007-11-12 14:38:38 -0800
committerGabe Black <gblack@eecs.umich.edu>2007-11-12 14:38:38 -0800
commit6d4ba8de34e4427a0488e6bc0a9f5b9ec5b1a265 (patch)
tree05312bfa9ce439c3130ea63309205dd0ff8ba019 /src/arch/x86
parentfce45baf178b43c2ea1476967fba3766e9b2ea9d (diff)
downloadgem5-6d4ba8de34e4427a0488e6bc0a9f5b9ec5b1a265.tar.xz
X86: Flesh out the opcode groups for two byte opcodes.
--HG-- extra : convert_revision : 4d51befd6dae4035c0eb685d33e1f5e38467c766
Diffstat (limited to 'src/arch/x86')
-rw-r--r--src/arch/x86/isa/decoder/two_byte_opcodes.isa210
1 files changed, 198 insertions, 12 deletions
diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index 0482fdf23..30034a305 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -61,8 +61,62 @@
0x0F: decode OPCODE_OP_TOP5 {
format WarnUnimpl {
0x00: decode OPCODE_OP_BOTTOM3 {
- 0x00: group6();
- 0x01: group7();
+ //0x00: group6();
+ 0x00: decode MODRM_REG {
+ 0x0: sldt_Mw_or_Rv();
+ 0x1: str_Mw_or_Rv();
+ 0x2: lldt_Mw_or_Rv();
+ 0x3: ltr_Mw_or_Rv();
+ 0x4: verr_Mw_or_Rv();
+ 0x5: verw_Mw_or_Rv();
+ //0x6: jmpe_Ev(); // IA-64
+ default: Inst::UD2();
+ }
+ //0x01: group7(); // Ugly, ugly, ugly...
+ 0x01: decode MODRM_MOD {
+ 0x3: decode MODRM_REG {
+ 0x0: decode MODRM_RM {
+ 0x1: vmcall();
+ 0x2: vmlaunch();
+ 0x3: vmresume();
+ 0x4: vmxoff();
+ default: Inst::UD2();
+ }
+ 0x1: decode MODRM_RM {
+ 0x0: monitor();
+ 0x1: mwait();
+ default: Inst::UD2();
+ }
+ 0x3: decode MODRM_RM {
+ 0x0: vmrun();
+ 0x1: vmmcall();
+ 0x2: vmload();
+ 0x3: vmsave();
+ 0x4: stgi();
+ 0x5: clgi();
+ 0x6: skinit();
+ 0x7: invlpga();
+ }
+ 0x4: smsw_Rv();
+ 0x6: lmsw_Rv();
+ 0x7: decode MODRM_RM {
+ 0x0: swapgs();
+ 0x1: rdtscp();
+ default: Inst::UD2();
+ }
+ default: Inst::UD2();
+ }
+ default: decode MODRM_REG {
+ 0x0: sgdt_Ms();
+ 0x1: sidt_Ms();
+ 0x2: lgdt_Ms();
+ 0x3: lidt_Ms();
+ 0x4: smsw_Mw();
+ 0x6: lmsw_Mw();
+ 0x7: invlpg_M();
+ default: Inst::UD2();
+ }
+ }
0x02: lar_Gv_Ew();
0x03: lsl_Gv_Ew();
//sandpile.org doesn't seem to know what this is... ?
@@ -397,9 +451,58 @@
// no prefix
0x0: decode OPCODE_OP_BOTTOM3 {
0x0: pshufw_Pq_Qq_Ib();
- 0x1: group13_pshimw();
- 0x2: group14_pshimd();
- 0x3: group15_pshimq();
+ //0x1: group13_pshimw();
+ 0x1: decode MODRM_REG {
+ 0x2: decode LEGACY_OP {
+ 0x0: psrlw_PRq_Ib();
+ 0x1: psrlw_VRo_Ib();
+ }
+ 0x4: decode LEGACY_OP {
+ 0x0: psraw_PRq_Ib();
+ 0x1: psraw_VRo_Ib();
+ }
+ 0x6: decode LEGACY_OP {
+ 0x0: psllw_PRq_Ib();
+ 0x1: psllw_VRo_Ib();
+ }
+ default: Inst::UD2();
+ }
+ //0x2: group14_pshimd();
+ 0x2: decode MODRM_REG {
+ 0x2: decode LEGACY_OP {
+ 0x0: psrld_PRq_Ib();
+ 0x1: psrld_VRo_Ib();
+ }
+ 0x4: decode LEGACY_OP {
+ 0x0: psrad_PRq_Ib();
+ 0x1: psrad_VRo_Ib();
+ }
+ 0x6: decode LEGACY_OP {
+ 0x0: pslld_PRq_Ib();
+ 0x1: pslld_VRo_Ib();
+ }
+ default: Inst::UD2();
+ }
+ //0x3: group15_pshimq();
+ 0x3: decode MODRM_REG {
+ 0x2: decode LEGACY_OP {
+ 0x0: psrlq_PRq_Ib();
+ 0x1: psrlq_VRo_Ib();
+ }
+ 0x3: decode LEGACY_OP {
+ 0x0: Inst::UD2();
+ 0x1: psrldq_VRo_Ib();
+ }
+ 0x6: decode LEGACY_OP {
+ 0x0: psllq_PRq_Ib();
+ 0x1: psllq_VRo_Ib();
+ }
+ 0x7: decode LEGACY_OP {
+ 0x0: Inst::UD2();
+ 0x1: pslldq_VRo_Ib();
+ }
+ default: Inst::UD2();
+ }
0x4: pcmpeqb_Pq_Qq();
0x5: pcmpeqw_Pq_Qq();
0x6: pcmpeqd_Pq_Qq();
@@ -413,9 +516,58 @@
// operand size (0x66)
0x1: decode OPCODE_OP_BOTTOM3 {
0x0: pshufd_Vo_Wo_Ib();
- 0x1: group13_pshimw();
- 0x2: group14_pshimd();
- 0x3: group15_pshimq_dq();
+ //0x1: group13_pshimw();
+ 0x1: decode MODRM_REG {
+ 0x2: decode LEGACY_OP {
+ 0x0: psrlw_PRq_Ib();
+ 0x1: psrlw_VRo_Ib();
+ }
+ 0x4: decode LEGACY_OP {
+ 0x0: psraw_PRq_Ib();
+ 0x1: psraw_VRo_Ib();
+ }
+ 0x6: decode LEGACY_OP {
+ 0x0: psllw_PRq_Ib();
+ 0x1: psllw_VRo_Ib();
+ }
+ default: Inst::UD2();
+ }
+ //0x2: group14_pshimd();
+ 0x2: decode MODRM_REG {
+ 0x2: decode LEGACY_OP {
+ 0x0: psrld_PRq_Ib();
+ 0x1: psrld_VRo_Ib();
+ }
+ 0x4: decode LEGACY_OP {
+ 0x0: psrad_PRq_Ib();
+ 0x1: psrad_VRo_Ib();
+ }
+ 0x6: decode LEGACY_OP {
+ 0x0: pslld_PRq_Ib();
+ 0x1: pslld_VRo_Ib();
+ }
+ default: Inst::UD2();
+ }
+ //0x3: group15_pshimq();
+ 0x3: decode MODRM_REG {
+ 0x2: decode LEGACY_OP {
+ 0x0: psrlq_PRq_Ib();
+ 0x1: psrlq_VRo_Ib();
+ }
+ 0x3: decode LEGACY_OP {
+ 0x0: Inst::UD2();
+ 0x1: psrldq_VRo_Ib();
+ }
+ 0x6: decode LEGACY_OP {
+ 0x0: psllq_PRq_Ib();
+ 0x1: psllq_VRo_Ib();
+ }
+ 0x7: decode LEGACY_OP {
+ 0x0: Inst::UD2();
+ 0x1: pslldq_VRo_Ib();
+ }
+ default: Inst::UD2();
+ }
0x4: pcmpeqb_Vo_Wo();
0x5: pcmpeqw_Vo_Wo();
0x6: pcmpeqd_Vo_Wo();
@@ -518,7 +670,21 @@
0x3: bts_Ev_Gv();
0x4: shrd_Ev_Gv_Ib();
0x5: shrd_Ev_Gv_rCl();
- 0x6: group16();
+ //0x6: group16();
+ 0x6: decode MODRM_MOD {
+ 0x3: decode MODRM_REG {
+ 0x5: lfence();
+ 0x6: mfence();
+ 0x7: sfence();
+ default: Inst::UD2();
+ }
+ default: decode MODRM_REG {
+ 0x0: fxsave();
+ 0x1: fxrstor();
+ 0x7: clflush();
+ default: Inst::UD2();
+ }
+ }
0x7: Inst::IMUL(Gv,Ev);
}
0x16: decode OPCODE_OP_BOTTOM3 {
@@ -536,8 +702,16 @@
}
0x17: decode OPCODE_OP_BOTTOM3 {
0x0: jmpe_Jz(); // IA-64?
- 0x1: group11_UD2();
- 0x2: group8_Ev_Ib();
+ //0x1: group11_UD2();
+ 0x1: Inst::UD2();
+ //0x2: group8_Ev_Ib();
+ 0x2: decode MODRM_REG {
+ 0x4: bt_Ev_Ib();
+ 0x5: bts_Ev_Ib();
+ 0x6: btr_Ev_Ib();
+ 0x7: btc_Ev_Ib();
+ default: Inst::UD2();
+ }
0x3: btc_Ev_Gv();
0x4: bsf_Gv_Ev();
0x5: bsr_Gv_Ev();
@@ -550,7 +724,19 @@
0x18: decode OPCODE_OP_BOTTOM3 {
0x0: xadd_Eb_Gb();
0x1: xadd_Ev_Gv();
- 0x7: group9();
+ //0x7: group9();
+ 0x7: decode MODRM_REG {
+ 0x1: cmpxchg_Mq();
+ 0x6: decode LEGACY_OP {
+ 0x1: vmclear_Mq();
+ default: decode LEGACY_REP {
+ 0x1: vmxon_Mq();
+ 0x0: vmptrld_Mq();
+ }
+ }
+ 0x7: vmptrst_Mq();
+ default: Inst::UD2();
+ }
default: decode LEGACY_DECODEVAL {
// no prefix
0x0: decode OPCODE_OP_BOTTOM3 {