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authorGabe Black <gblack@eecs.umich.edu>2007-07-20 17:02:39 -0700
committerGabe Black <gblack@eecs.umich.edu>2007-07-20 17:02:39 -0700
commitc3669b892548ed3e1e8f4016f1e18202c5e7f484 (patch)
treeedd13ce8500df1846dbc179b7d3d4fd36a8a6e0c /src/arch/x86/isa
parent231cc3effb193c27ae10009444c5ee7cf2509a06 (diff)
downloadgem5-c3669b892548ed3e1e8f4016f1e18202c5e7f484.tar.xz
Implement the rest of the conditional jump instructions and hook them into the decoder.
--HG-- extra : convert_revision : 8d1d6abce29371def560e1c3f31dabb4de01366f
Diffstat (limited to 'src/arch/x86/isa')
-rw-r--r--src/arch/x86/isa/decoder/one_byte_opcodes.isa40
-rw-r--r--src/arch/x86/isa/decoder/two_byte_opcodes.isa40
-rw-r--r--src/arch/x86/isa/insts/control_transfer/jump.py100
3 files changed, 142 insertions, 38 deletions
diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa
index 42404ab91..d1ef8d48e 100644
--- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa
@@ -214,25 +214,27 @@
0x6: outs_Dx_Xb();
0x7: outs_Dx_Xz();
}
- 0x0E: decode OPCODE_OP_BOTTOM3 {
- 0x0: jo_Jb();
- 0x1: jno_Jb();
- 0x2: jb_Jb();
- 0x3: Inst::JNB(Jb);
- 0x4: Inst::JZ(Jb);
- 0x5: Inst::JNZ(Jb);
- 0x6: Inst::JBE(Jb);
- 0x7: Inst::JNBE(Jb);
- }
- 0x0F: decode OPCODE_OP_BOTTOM3 {
- 0x0: js_Jb();
- 0x1: jns_Jb();
- 0x2: jp_Jb();
- 0x3: jnp_Jb();
- 0x4: jl_Jb();
- 0x5: jnl_Jb();
- 0x6: jle_Jb();
- 0x7: Inst::JNLE(Jb);
+ format Inst {
+ 0x0E: decode OPCODE_OP_BOTTOM3 {
+ 0x0: JO(Jb);
+ 0x1: JNO(Jb);
+ 0x2: JB(Jb);
+ 0x3: JNB(Jb);
+ 0x4: JZ(Jb);
+ 0x5: JNZ(Jb);
+ 0x6: JBE(Jb);
+ 0x7: JNBE(Jb);
+ }
+ 0x0F: decode OPCODE_OP_BOTTOM3 {
+ 0x0: JS(Jb);
+ 0x1: JNS(Jb);
+ 0x2: JP(Jb);
+ 0x3: JNP(Jb);
+ 0x4: JL(Jb);
+ 0x5: JNL(Jb);
+ 0x6: JLE(Jb);
+ 0x7: JNLE(Jb);
+ }
}
0x10: decode OPCODE_OP_BOTTOM3 {
//0x0: group1_Eb_Ib();
diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index a62e911e2..383d64e5a 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -227,25 +227,27 @@
0x6: holder();
0x7: holder();
}
- 0x10: decode OPCODE_OP_BOTTOM3 {
- 0x0: jo_Jz();
- 0x1: jno_Jz();
- 0x2: jb_Jz();
- 0x3: Inst::JNB(Jz);
- 0x4: Inst::JZ(Jz);
- 0x5: Inst::JNZ(Jz);
- 0x6: Inst::JBE(Jz);
- 0x7: Inst::JNBE(Jz);
- }
- 0x11: decode OPCODE_OP_BOTTOM3 {
- 0x0: js_Jz();
- 0x1: jns_Jz();
- 0x2: jp_Jz();
- 0x3: jnp_Jz();
- 0x4: jl_Jz();
- 0x5: jnl_Jz();
- 0x6: jle_Jz();
- 0x7: jnle_Jz();
+ format Inst {
+ 0x10: decode OPCODE_OP_BOTTOM3 {
+ 0x0: JO(Jz);
+ 0x1: JNO(Jz);
+ 0x2: JB(Jz);
+ 0x3: JNB(Jz);
+ 0x4: JZ(Jz);
+ 0x5: JNZ(Jz);
+ 0x6: JBE(Jz);
+ 0x7: JNBE(Jz);
+ }
+ 0x11: decode OPCODE_OP_BOTTOM3 {
+ 0x0: JS(Jz);
+ 0x1: JNS(Jz);
+ 0x2: JP(Jz);
+ 0x3: JNP(Jz);
+ 0x4: JL(Jz);
+ 0x5: JNL(Jz);
+ 0x6: JLE(Jz);
+ 0x7: JNLE(Jz);
+ }
}
0x12: decode OPCODE_OP_BOTTOM3 {
0x0: seto_Eb();
diff --git a/src/arch/x86/isa/insts/control_transfer/jump.py b/src/arch/x86/isa/insts/control_transfer/jump.py
index 3d69643ae..489eb9e39 100644
--- a/src/arch/x86/isa/insts/control_transfer/jump.py
+++ b/src/arch/x86/isa/insts/control_transfer/jump.py
@@ -74,6 +74,16 @@ def macroop JNZ_I
wrip t1, t2, flags=(nCZF,)
};
+def macroop JB_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(CCF,)
+};
+
def macroop JNB_I
{
# Make the default data size of jumps 64 bits in 64 bit mode
@@ -104,6 +114,76 @@ def macroop JNBE_I
wrip t1, t2, flags=(nCCvZF,)
};
+def macroop JS_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(CSF,)
+};
+
+def macroop JNS_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(nCSF,)
+};
+
+def macroop JP_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(CPF,)
+};
+
+def macroop JNP_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(nCPF,)
+};
+
+def macroop JL_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(CSxOF,)
+};
+
+def macroop JNL_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(nCSxOF,)
+};
+
+def macroop JLE_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(CSxOvZF,)
+};
+
def macroop JNLE_I
{
# Make the default data size of jumps 64 bits in 64 bit mode
@@ -114,6 +194,26 @@ def macroop JNLE_I
wrip t1, t2, flags=(nCSxOvZF,)
};
+def macroop JO_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(COF,)
+};
+
+def macroop JNO_I
+{
+ # Make the default data size of jumps 64 bits in 64 bit mode
+ .adjust_env oszIn64Override
+
+ rdip t1
+ limm t2, imm
+ wrip t1, t2, flags=(nCOF,)
+};
+
def macroop JMP_I
{
# Make the default data size of jumps 64 bits in 64 bit mode