[gem5-dev] Change in gem5/gem5[master]: arch-power: Add fields for VA form instructions

[Sandipan Das (Gerrit)]

Sandipan Das has uploaded this change for review. (  
https://gem5-review.googlesource.com/c/public/gem5/+/16620

Change subject: arch-power: Add fields for VA form instructions
......................................................................

arch-power: Add fields for VA form instructions

This introduces the extended opcode field and the operand
field RC for VA form instructions.

Change-Id: I60d1bff6e7c7dd41e6fbe28a5f012b6fd66e7bc3
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 dcecdd4..d1aab2d 100644
--- a/src/arch/power/isa/bitfields.isa
+++ b/src/arch/power/isa/bitfields.isa
@@ -40,6 +40,7 @@
 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>;
@@ -49,6 +50,7 @@
 // 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 c50c3e6..c2a45b9 100644
--- a/src/arch/power/isa/operands.isa
+++ b/src/arch/power/isa/operands.isa
@@ -46,7 +46,8 @@
     '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: master
Gerrit-Change-Id: I60d1bff6e7c7dd41e6fbe28a5f012b6fd66e7bc3
Gerrit-Change-Number: 16620
Gerrit-PatchSet: 1
Gerrit-Owner: Sandipan Das <sandi...@linux.ibm.com>
Gerrit-MessageType: newchange
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