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authorGabe Black <gblack@eecs.umich.edu>2007-08-26 20:35:48 -0700
committerGabe Black <gblack@eecs.umich.edu>2007-08-26 20:35:48 -0700
commit00d9036c6221ce619cc933305b814e4784b15afa (patch)
treefe0d5e011f33638fa1f8a12c4964280b2ab24489 /src
parent9b49a78cfdc0bd6f8afdb0d066ea39778095d7ac (diff)
downloadgem5-00d9036c6221ce619cc933305b814e4784b15afa.tar.xz
X86: Make shift instructions set some of the flags they're supposed to.
The flag mechanism for microops needs to be fleshd out a little more to allow for custom flag calculation methods for certain microops. Shift is an example where the rules for calculating OF and CF are unique. --HG-- extra : convert_revision : 91981a00c1efd05db702fffa9cea51f912583013
Diffstat (limited to 'src')
-rw-r--r--src/arch/x86/isa/insts/rotate_and_shift/shift.py54
1 files changed, 27 insertions, 27 deletions
diff --git a/src/arch/x86/isa/insts/rotate_and_shift/shift.py b/src/arch/x86/isa/insts/rotate_and_shift/shift.py
index 45758b489..6c688cca3 100644
--- a/src/arch/x86/isa/insts/rotate_and_shift/shift.py
+++ b/src/arch/x86/isa/insts/rotate_and_shift/shift.py
@@ -56,13 +56,13 @@
microcode = '''
def macroop SAL_R_I
{
- slli reg, reg, imm
+ slli reg, reg, imm, flags=(SF,ZF,PF)
};
def macroop SAL_M_I
{
ld t1, seg, sib, disp
- slli t1, t1, imm
+ slli t1, t1, imm, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -70,19 +70,19 @@ def macroop SAL_P_I
{
rdip t7
ld t1, seg, riprel, disp
- slli t1, t1, imm
+ slli t1, t1, imm, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SAL_1_R
{
- slli reg, reg, 1
+ slli reg, reg, 1, flags=(SF,ZF,PF)
};
def macroop SAL_1_M
{
ld t1, seg, sib, disp
- slli t1, t1, 1
+ slli t1, t1, 1, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -90,19 +90,19 @@ def macroop SAL_1_P
{
rdip t7
ld t1, seg, riprel, disp
- slli t1, t1, 1
+ slli t1, t1, 1, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SAL_R_R
{
- sll reg, reg, regm
+ sll reg, reg, regm, flags=(SF,ZF,PF)
};
def macroop SAL_M_R
{
ld t1, seg, sib, disp
- sll t1, t1, reg
+ sll t1, t1, reg, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -110,19 +110,19 @@ def macroop SAL_P_R
{
rdip t7
ld t1, seg, riprel, disp
- sll t1, t1, reg
+ sll t1, t1, reg, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SHR_R_I
{
- srli reg, reg, imm
+ srli reg, reg, imm, flags=(SF,ZF,PF)
};
def macroop SHR_M_I
{
ld t1, seg, sib, disp
- srli t1, t1, imm
+ srli t1, t1, imm, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -130,19 +130,19 @@ def macroop SHR_P_I
{
rdip t7
ld t1, seg, riprel, disp
- srli t1, t1, imm
+ srli t1, t1, imm, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SHR_1_R
{
- srli reg, reg, 1
+ srli reg, reg, 1, flags=(SF,ZF,PF)
};
def macroop SHR_1_M
{
ld t1, seg, sib, disp
- srli t1, t1, 1
+ srli t1, t1, 1, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -150,19 +150,19 @@ def macroop SHR_1_P
{
rdip t7
ld t1, seg, riprel, disp
- srli t1, t1, 1
+ srli t1, t1, 1, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SHR_R_R
{
- srl reg, reg, regm
+ srl reg, reg, regm, flags=(SF,ZF,PF)
};
def macroop SHR_M_R
{
ld t1, seg, sib, disp
- srl t1, t1, reg
+ srl t1, t1, reg, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -170,19 +170,19 @@ def macroop SHR_P_R
{
rdip t7
ld t1, seg, riprel, disp
- srl t1, t1, reg
+ srl t1, t1, reg, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SAR_R_I
{
- srai reg, reg, imm
+ srai reg, reg, imm, flags=(SF,ZF,PF)
};
def macroop SAR_M_I
{
ld t1, seg, sib, disp
- srai t1, t1, imm
+ srai t1, t1, imm, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -190,19 +190,19 @@ def macroop SAR_P_I
{
rdip t7
ld t1, seg, riprel, disp
- srai t1, t1, imm
+ srai t1, t1, imm, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SAR_1_R
{
- srai reg, reg, 1
+ srai reg, reg, 1, flags=(SF,ZF,PF)
};
def macroop SAR_1_M
{
ld t1, seg, sib, disp
- srai t1, t1, 1
+ srai t1, t1, 1, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -210,19 +210,19 @@ def macroop SAR_1_P
{
rdip t7
ld t1, seg, riprel, disp
- srai t1, t1, 1
+ srai t1, t1, 1, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
def macroop SAR_R_R
{
- sra reg, reg, regm
+ sra reg, reg, regm, flags=(SF,ZF,PF)
};
def macroop SAR_M_R
{
ld t1, seg, sib, disp
- sra t1, t1, reg
+ sra t1, t1, reg, flags=(SF,ZF,PF)
st t1, seg, sib, disp
};
@@ -230,7 +230,7 @@ def macroop SAR_P_R
{
rdip t7
ld t1, seg, riprel, disp
- sra t1, t1, reg
+ sra t1, t1, reg, flags=(SF,ZF,PF)
st t1, seg, riprel, disp
};
'''