From: Gabe Black <gblack@eecs.umich.edu>
Date: Tue, 17 Jul 2007 22:36:45 +0000 (-0700)
Subject: Implement the jz instruction.
X-Git-Tag: m5_2.0_beta4~297^2~48
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d77d4c04b702fd8af1d268893bd71e7245f9c542;p=gem5.git

Implement the jz instruction.

--HG--
extra : convert_revision : 7c0bd7ce244f724ac03bbb5fdf770c7a3eba78b4
---

diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa
index 484f8160d..4be83bf54 100644
--- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa
@@ -263,7 +263,7 @@
             0x1: jno_Jb();
             0x2: jb_Jb();
             0x3: jnb_Jb();
-            0x4: jz_Jb();
+            0x4: Inst::JZ(Jb);
             0x5: jnz_Jb();
             0x6: jbe_Jb();
             0x7: jnbe_Jb();
diff --git a/src/arch/x86/isa/insts/control_transfer/jump.py b/src/arch/x86/isa/insts/control_transfer/jump.py
index e90e5b12b..9a013a823 100644
--- a/src/arch/x86/isa/insts/control_transfer/jump.py
+++ b/src/arch/x86/isa/insts/control_transfer/jump.py
@@ -53,8 +53,11 @@
 #
 # Authors: Gabe Black
 
-microcode = ""
-#let {{
-#    class JMP(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#}};
+microcode = '''
+def macroop JZ_I
+{
+    rdip t1
+    limm t2, imm
+    wrip t1, t2, flags=(CZF,)
+};
+'''