Sandipan Das has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/40904 )
Change subject: arch-power: Add fields for VA form instructions
......................................................................
arch-power: Add fields for VA form instructions
This introduces the extended opcode field for VA form
instructions and the RC field that specifes a GPR to
be used as a register operand.
Change-Id: Ibc63b7392cb552613c755463fb34f2ee2362b2b6
Signed-off-by: Sandipan Das <sandi...@linux.ibm.com>
---
M src/arch/power/isa/bitfields.isa
M src/arch/power/isa/operands.isa
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/arch/power/isa/bitfields.isa
b/src/arch/power/isa/bitfields.isa
index 84a3a2c..8783081 100644
--- a/src/arch/power/isa/bitfields.isa
+++ b/src/arch/power/isa/bitfields.isa
@@ -38,6 +38,7 @@
def bitfield A_XO <5:1>;
def bitfield DS_XO <1:0>;
def bitfield DX_XO <5:1>;
+def bitfield VA_XO <5:0>;
def bitfield X_XO <10:1>;
def bitfield XFL_XO <10:1>;
def bitfield XFX_XO <10:1>;
@@ -47,6 +48,7 @@
// Register fields
def bitfield RA <20:16>;
def bitfield RB <15:11>;
+def bitfield RC <10:6>;
def bitfield RS <25:21>;
def bitfield RT <25:21>;
def bitfield FRA <20:16>;
diff --git a/src/arch/power/isa/operands.isa
b/src/arch/power/isa/operands.isa
index 017469a..bdd5948 100644
--- a/src/arch/power/isa/operands.isa
+++ b/src/arch/power/isa/operands.isa
@@ -44,7 +44,8 @@
'Rs': ('IntReg', 'ud', 'RS', 'IsInteger', 1),
'Ra': ('IntReg', 'ud', 'RA', 'IsInteger', 2),
'Rb': ('IntReg', 'ud', 'RB', 'IsInteger', 3),
- 'Rt': ('IntReg', 'ud', 'RT', 'IsInteger', 4),
+ 'Rc': ('IntReg', 'ud', 'RC', 'IsInteger', 4),
+ 'Rt': ('IntReg', 'ud', 'RT', 'IsInteger', 5),
# General Purpose Floating Point Reg Operands
'Fa': ('FloatReg', 'df', 'FRA', 'IsFloating', 1),
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ibc63b7392cb552613c755463fb34f2ee2362b2b6
Gerrit-Change-Number: 40904
Gerrit-PatchSet: 1
Gerrit-Owner: Sandipan Das <sandi...@linux.ibm.com>
Gerrit-MessageType: newchange
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