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Diffstat (limited to 'src/arch/x86/isa/decoder')
-rw-r--r--src/arch/x86/isa/decoder/locked_opcodes.isa4
-rw-r--r--src/arch/x86/isa/decoder/two_byte_opcodes.isa343
2 files changed, 142 insertions, 205 deletions
diff --git a/src/arch/x86/isa/decoder/locked_opcodes.isa b/src/arch/x86/isa/decoder/locked_opcodes.isa
index 14d5e58a3..e776d1320 100644
--- a/src/arch/x86/isa/decoder/locked_opcodes.isa
+++ b/src/arch/x86/isa/decoder/locked_opcodes.isa
@@ -139,6 +139,10 @@
}
0x2: decode OPCODE_PREFIXA {
0x0F: decode OPCODE_OP_TOP5 {
+ 0x04: decode OPCODE_OP_BOTTOM3 {
+ 0x0: WarnUnimpl::mov_Rd_CR8D();
+ 0x2: WarnUnimpl::mov_CR8D_Rd();
+ }
0x15: decode OPCODE_OP_BOTTOM3 {
0x3: BTS_LOCKED(Mv,Gv);
}
diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index c2ba399b2..213e57264 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -101,43 +101,31 @@
default: Inst::UD2();
}
//0x01: group7(); // Ugly, ugly, ugly...
- 0x01: decode MODRM_MOD {
- 0x3: decode MODRM_REG {
- 0x0: decode MODRM_RM {
+ 0x01: decode MODRM_REG {
+ 0x0: decode MODRM_MOD {
+ 0x3: decode MODRM_RM {
0x1: vmcall();
0x2: vmlaunch();
0x3: vmresume();
0x4: vmxoff();
default: Inst::UD2();
}
- 0x1: decode MODRM_RM {
+ default: sgdt_Ms();
+ }
+ 0x1: decode MODRM_MOD {
+ 0x3: decode MODRM_RM {
0x0: monitor();
0x1: mwait();
default: Inst::UD2();
}
+ default: sidt_Ms();
+ }
+ 0x2: decode MODRM_MOD {
0x3: decode MODRM_RM {
- 0x0: vmrun();
- 0x1: vmmcall();
- 0x2: vmload();
- 0x3: vmsave();
- 0x4: stgi();
- 0x5: clgi();
- 0x6: skinit();
- 0x7: invlpga();
- }
- 0x4: Inst::SMSW(Rv);
- 0x6: Inst::LMSW(Rv);
- 0x7: decode MODRM_RM {
- 0x0: Inst::SWAPGS();
- 0x1: rdtscp();
- default: Inst::UD2();
+ 0x0: xgetbv();
+ 0x1: xsetbv();
}
- default: Inst::UD2();
- }
- default: decode MODRM_REG {
- 0x0: sgdt_Ms();
- 0x1: sidt_Ms();
- 0x2: decode MODE_SUBMODE {
+ default: decode MODE_SUBMODE {
0x0: Inst::LGDT(M);
default: decode OPSIZE {
// 16 bit operand sizes are special, but only
@@ -146,7 +134,19 @@
default: Inst::LGDT(M);
}
}
- 0x3: decode MODE_SUBMODE {
+ }
+ 0x3: decode MODRM_MOD {
+ 0x3: decode MODRM_RM {
+ 0x0: vmrun();
+ 0x1: vmmcall();
+ 0x2: vmload();
+ 0x3: vmsave();
+ 0x4: stgi();
+ 0x5: clgi();
+ 0x6: skinit();
+ 0x7: invlpga();
+ }
+ default: decode MODE_SUBMODE {
0x0: Inst::LIDT(M);
default: decode OPSIZE {
// 16 bit operand sizes are special, but only
@@ -155,10 +155,19 @@
default: Inst::LIDT(M);
}
}
- 0x4: Inst::SMSW(Mw);
- 0x6: Inst::LMSW(Mw);
- 0x7: Inst::INVLPG(M);
- default: Inst::UD2();
+ }
+ 0x4: decode MODRM_MOD {
+ 0x3: Inst::SMSW(Rv);
+ default: Inst::SMSW(Mw);
+ }
+ 0x6: Inst::LMSW(Ew);
+ 0x7: decode MODRM_MOD {
+ 0x3: decode MODRM_RM {
+ 0x0: Inst::SWAPGS();
+ 0x1: rdtscp();
+ default: Inst::UD2();
+ }
+ default: Inst::INVLPG(M);
}
}
0x02: lar_Gv_Ew();
@@ -292,15 +301,15 @@
0x0: MOVUPS(Vo,Wo);
0x1: MOVUPS(Wo,Vo);
0x2: decode MODRM_MOD {
- 0x3: MOVHLPS(Vq,VRq);
- default: MOVLPS(Vq,Mq);
+ 0x3: MOVHLPS(Vps,VRq);
+ default: MOVLPS(Vps,Mq);
}
- 0x3: MOVLPS(Mq,Vq);
+ 0x3: MOVLPS(Mq,Vps);
0x4: UNPCKLPS(Vps,Wq);
- 0x5: UNPCKHPS(Vpd,Wq);
+ 0x5: UNPCKHPS(Vps,Wq);
0x6: decode MODRM_MOD {
- 0x3: MOVLHPS(Vq,VRq);
- default: MOVHPS(Vq,Mq);
+ 0x3: MOVLHPS(Vps,VRq);
+ default: MOVHPS(Vps,Mq);
}
0x7: MOVHPS(Mq,Vq);
}
@@ -333,7 +342,7 @@
default: UD2();
}
0x03: decode OPCODE_OP_BOTTOM3 {
- //group17();
+ //group16();
0x0: decode MODRM_REG {
0x0: WarnUnimpl::prefetch_nta();
0x1: PREFETCH_T0(Mb);
@@ -356,60 +365,53 @@
0x1: MOV(Rd,Dd);
0x2: MOV(Cd,Rd);
0x3: MOV(Dd,Rd);
- 0x4: WarnUnimpl::mov_Rd_Td();
- 0x6: WarnUnimpl::mov_Td_Rd();
default: UD2();
}
- // lock prefix (0xF0)
- 0x2: decode OPCODE_OP_BOTTOM3 {
- 0x0: WarnUnimpl::mov_Rd_CR8D();
- 0x2: WarnUnimpl::mov_CR8D_Rd();
- }
default: UD2();
}
- }
- 0x05: decode LEGACY_DECODEVAL {
- // no prefix
- 0x0: decode OPCODE_OP_BOTTOM3 {
- //These moves should really use size o (octword), but
- //because they are split in two, they use q (quadword).
- 0x0: Inst::MOVAPS(Vq,Wq);
- 0x1: Inst::MOVAPS(Wq,Vq);
- 0x2: Inst::CVTPI2PS(Vq,Qq);
- 0x3: movntps_Mo_Vo();
- 0x4: Inst::CVTTPS2PI(Pq,Wq);
- 0x5: Inst::CVTPS2PI(Pq,Wq);
- 0x6: Inst::UCOMISS(Vd,Wd);
- 0x7: Inst::COMISS(Vd,Wd);
- }
- // repe (0xF3)
- 0x4: decode OPCODE_OP_BOTTOM3 {
- 0x2: Inst::CVTSI2SS(Vd,Ed);
- 0x4: Inst::CVTTSS2SI(Gd,Wd);
- 0x5: Inst::CVTSS2SI(Gd,Wd);
- default: Inst::UD2();
- }
- // operand size (0x66)
- 0x1: decode OPCODE_OP_BOTTOM3 {
- 0x0: Inst::MOVAPD(Vo,Wo);
- 0x1: Inst::MOVAPD(Wo,Vo);
- 0x2: Inst::CVTPI2PD(Vo,Qq);
- 0x3: movntpd_Mo_Vo();
- 0x4: Inst::CVTTPD2PI(Pq,Wo);
- 0x5: Inst::CVTPD2PI(Pq,Wo);
- 0x6: Inst::UCOMISD(Vq,Wq);
- 0x7: Inst::COMISD(Vq,Wq);
- }
- // repne (0xF2)
- 0x8: decode OPCODE_OP_BOTTOM3 {
- // The size of the V operand should be q, not dp
- 0x2: Inst::CVTSI2SD(Vdp,Edp);
- // The size of the W operand should be q, not dp
- 0x4: Inst::CVTTSD2SI(Gdp,Wdp);
- 0x5: Inst::CVTSD2SI(Gd,Wq);
- default: Inst::UD2();
+ 0x05: decode LEGACY_DECODEVAL {
+ // no prefix
+ 0x0: decode OPCODE_OP_BOTTOM3 {
+ //These moves should really use size o (octword), but
+ //because they are split in two, they use q (quadword).
+ 0x0: MOVAPS(Vq,Wq);
+ 0x1: MOVAPS(Wq,Vq);
+ 0x2: CVTPI2PS(Vq,Qq);
+ 0x3: WarnUnimpl::movntps_Mo_Vo();
+ 0x4: CVTTPS2PI(Pq,Wq);
+ 0x5: CVTPS2PI(Pq,Wq);
+ 0x6: UCOMISS(Vd,Wd);
+ 0x7: COMISS(Vd,Wd);
+ }
+ // repe (0xF3)
+ 0x4: decode OPCODE_OP_BOTTOM3 {
+ 0x2: CVTSI2SS(Vd,Ed);
+ 0x4: CVTTSS2SI(Gd,Wd);
+ 0x5: CVTSS2SI(Gd,Wd);
+ default: UD2();
+ }
+ // operand size (0x66)
+ 0x1: decode OPCODE_OP_BOTTOM3 {
+ 0x0: MOVAPD(Vo,Wo);
+ 0x1: MOVAPD(Wo,Vo);
+ 0x2: CVTPI2PD(Vo,Qq);
+ 0x3: WarnUnimpl::movntpd_Mo_Vo();
+ 0x4: CVTTPD2PI(Pq,Wo);
+ 0x5: CVTPD2PI(Pq,Wo);
+ 0x6: UCOMISD(Vq,Wq);
+ 0x7: COMISD(Vq,Wq);
+ }
+ // repne (0xF2)
+ 0x8: decode OPCODE_OP_BOTTOM3 {
+ // The size of the V operand should be q, not dp
+ 0x2: CVTSI2SD(Vdp,Edp);
+ // The size of the W operand should be q, not dp
+ 0x4: CVTTSD2SI(Gdp,Wdp);
+ 0x5: CVTSD2SI(Gd,Wq);
+ default: UD2();
+ }
+ default: UD2();
}
- default: Inst::UD2();
}
0x06: decode OPCODE_OP_BOTTOM3 {
0x0: Inst::WRMSR();
@@ -427,13 +429,8 @@
}
0x07: decode OPCODE_OP_BOTTOM3 {
0x0: three_byte_opcode();
- 0x1: three_byte_opcode();
0x2: three_byte_opcode();
- 0x3: three_byte_opcode();
- 0x4: three_byte_opcode();
- 0x5: three_byte_opcode();
- 0x6: three_byte_opcode();
- 0x7: three_byte_opcode();
+ default: UD2();
}
format Inst {
0x08: decode OPCODE_OP_BOTTOM3 {
@@ -482,9 +479,7 @@
0x4: ANDPD(Vo,Wo);
0x5: ANDNPD(Vo,Wo);
0x6: ORPD(Vo,Wo);
- //This really should be type o, but it works on q sized
- //chunks at a time.
- 0x7: XORPD(Vq,Wq);
+ 0x7: XORPD(Vo,Wo);
default: UD2();
}
// repne (0xF2)
@@ -599,56 +594,24 @@
// no prefix
0x0: decode OPCODE_OP_BOTTOM3 {
0x0: PSHUFW(Pq,Qq,Ib);
- //0x1: group13_pshimw();
+ //0x1: group12_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);
- }
+ 0x2: PSRLW(PRq,Ib);
+ 0x4: PSRAW(PRq,Ib);
+ 0x6: PSLLW(PRq,Ib);
default: UD2();
}
- //0x2: group14_pshimd();
+ //0x2: group13_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);
- }
+ 0x2: PSRLD(PRq,Ib);
+ 0x4: PSRAD(PRq,Ib);
+ 0x6: PSLLD(PRq,Ib);
default: UD2();
}
- //0x3: group15_pshimq();
+ //0x3: group14_pshimq();
0x3: decode MODRM_REG {
- 0x2: decode LEGACY_OP {
- 0x0: PSRLQ(PRq,Ib);
- 0x1: PSRLQ(VRo,Ib);
- }
- 0x3: decode LEGACY_OP {
- 0x0: UD2();
- 0x1: WarnUnimpl::psrldq_VRo_Ib();
- }
- 0x6: decode LEGACY_OP {
- 0x0: PSLLQ(PRq,Ib);
- 0x1: PSLLQ(VRo,Ib);
- }
- 0x7: decode LEGACY_OP {
- 0x0: UD2();
- 0x1: WarnUnimpl::pslldq_VRo_Ib();
- }
+ 0x2: PSRLQ(PRq,Ib);
+ 0x6: PSLLQ(PRq,Ib);
default: Inst::UD2();
}
0x4: Inst::PCMPEQB(Pq,Qq);
@@ -664,56 +627,25 @@
// operand size (0x66)
0x1: decode OPCODE_OP_BOTTOM3 {
0x0: PSHUFD(Vo,Wo,Ib);
- //0x1: group13_pshimw();
+ //0x1: group12_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: PSRLW(VRo,Ib);
+ 0x4: PSRAW(VRo,Ib);
+ 0x6: PSLLW(VRo,Ib);
}
- //0x2: group14_pshimd();
+ //0x2: group13_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);
- }
+ 0x2: PSRLD(VRo,Ib);
+ 0x4: PSRAD(VRo,Ib);
+ 0x6: PSLLD(VRo,Ib);
default: UD2();
}
- //0x3: group15_pshimq();
+ //0x3: group14_pshimq();
0x3: decode MODRM_REG {
- 0x2: decode LEGACY_OP {
- 0x0: PSRLQ(PRq,Ib);
- 0x1: PSRLQ(VRo,Ib);
- }
- 0x3: decode LEGACY_OP {
- 0x0: UD2();
- 0x1: WarnUnimpl::psrldq_VRo_Ib();
- }
- 0x6: decode LEGACY_OP {
- 0x0: PSLLQ(PRq,Ib);
- 0x1: PSLLQ(VRo,Ib);
- }
- 0x7: decode LEGACY_OP {
- 0x0: UD2();
- 0x1: WarnUnimpl::pslldq_VRo_Ib();
- }
+ 0x2: PSRLQ(VRo,Ib);
+ 0x3: WarnUnimpl::psrldq_VRo_Ib();
+ 0x6: PSLLQ(VRo,Ib);
+ 0x7: WarnUnimpl::pslldq_VRo_Ib();
default: UD2();
}
0x4: PCMPEQB(Vo,Wo);
@@ -731,8 +663,8 @@
0x0F: decode LEGACY_DECODEVAL {
// no prefix
0x0: decode OPCODE_OP_BOTTOM3 {
- 0x0: WarnUnimpl::vmread_Ed_or_Eq_Gd_or_Gq();
- 0x1: WarnUnimpl::vmwrite_Gd_or_Gq_Ed_or_Eq();
+ 0x0: WarnUnimpl::vmread_Edp_Gdp();
+ 0x1: WarnUnimpl::vmwrite_Gdp_Edp();
0x6: MOVD(Edp,Pdp);
0x7: MOVQ(Qq,Pq);
default: UD2();
@@ -814,8 +746,7 @@
0x3: Inst::BT(Ev,Gv);
0x4: Inst::SHLD(Ev,Gv,Ib);
0x5: Inst::SHLD(Ev,Gv);
- 0x6: xbts_and_cmpxchg();
- 0x7: ibts_and_cmpxchg();
+ default: Inst::UD2();
}
0x15: decode OPCODE_OP_BOTTOM3 {
0x0: push_gs();
@@ -824,28 +755,27 @@
0x3: Inst::BTS(Ev,Gv);
0x4: Inst::SHRD(Ev,Gv,Ib);
0x5: Inst::SHRD(Ev,Gv);
- //0x6: group16();
- 0x6: decode MODRM_REG {
- 0x0: fxsave();
- 0x1: fxrstor();
- 0x2: Inst::LDMXCSR(Md);
- 0x3: Inst::STMXCSR(Md);
- 0x4: Inst::UD2();
- 0x5: decode MODRM_MOD {
- 0x3: BasicOperate::LFENCE(
+ //0x6: group15();
+ 0x6: decode MODRM_MOD {
+ 0x3: decode MODRM_REG {
+ 0x5: BasicOperate::LFENCE(
{{/*Nothing*/}}, IsReadBarrier);
- default: Inst::UD2();
- }
- 0x6: decode MODRM_MOD {
- 0x3: BasicOperate::MFENCE(
+ 0x6: BasicOperate::MFENCE(
{{/*Nothing*/}}, IsMemBarrier);
- default: Inst::UD2();
- }
- 0x7: decode MODRM_MOD {
- 0x3: BasicOperate::SFENCE(
+ 0x7: BasicOperate::SFENCE(
{{/*Nothing*/}}, IsWriteBarrier);
default: Inst::UD2();
}
+ default: decode MODRM_REG {
+ 0x0: fxsave();
+ 0x1: fxrstor();
+ 0x2: Inst::LDMXCSR(Md);
+ 0x3: Inst::STMXCSR(Md);
+ 0x4: xsave();
+ 0x5: xrstor();
+ 0x6: Inst::UD2();
+ 0x7: clflush();
+ }
}
0x7: Inst::IMUL(Gv,Ev);
}
@@ -865,8 +795,11 @@
0x7: MOVZX_W(Gv,Ev);
}
0x17: decode OPCODE_OP_BOTTOM3 {
- 0x0: WarnUnimpl::jmpe_Jz(); // IA-64?
- //0x1: group11_UD2();
+ 0x0: decode LEGACY_REP {
+ 0x0: WarnUnimpl::jmpe_Jz();
+ 0x1: WarnUnimpl::popcnt_Gv_Ev();
+ }
+ //0x1: group10_UD2();
0x1: UD2();
//0x2: group8_Ev_Ib();
0x2: decode MODRM_REG {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 18:29:19 +0000