DCTI is just a variant of A
authorKonstantinos Margaritis <konstantinos.margaritis@vectorcamp.gr>
Fri, 28 Apr 2023 11:28:58 +0000 (11:28 +0000)
committerKonstantinos Margaritis <konstantinos.margaritis@vectorcamp.gr>
Fri, 28 Apr 2023 11:28:58 +0000 (11:28 +0000)
openpower/sv/twin_butterfly.mdwn

index 21cb5f25131193f63ed3ceb679c3292be74e7a4a..8e0066801fc9815d124f7f325967149fe98baa45 100644 (file)
@@ -34,7 +34,7 @@ The instruction will run in accumulate mode, so in order to calculate the 2-coef
 
 # [DRAFT] Integer Butterfly Multiply Add/Sub FFT/DCT
 
-DCTI-Form
+A-Form
 
 * maddsubrs  RT,RA,RB,SH
 
@@ -57,18 +57,19 @@ Special Registers Altered:
     None
 ```
 
-Where DCTI-Form is defined in fields.txt:
+Where we have added this variant in A-Form (defined in fields.txt):
 
 ```
-# 1.6.7.2 DCTI-FORM
-    |0     | 6    |11      |16     |21    |25      |31  |
-    | PO   |  RT  |   RA   |   RB  |   SH |   XO   | Rc |
+# # 1.6.17 A-FORM
+    |0     |6     |11      |16     |21      |26    |31 |
+    ...
+    | PO   |  RT  |   RA   |   RB  |   SH   |   XO |Rc |
 
 ```
 
 The instruction has been added to `minor_22.csv`:
 
 ```
-------01000,ALU,OP_MADDSUBRS,RT,CONST_UI,RB,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,1,0,RC_ONLY,0,0,maddsubrs,DCTI,,1,unofficial until submitted and approved/renumbered by the opf isa wg
+------01000,ALU,OP_MADDSUBRS,RT,CONST_SH,RB,RT,NONE,CR0,0,0,ZERO,0,NONE,0,0,0,0,1,0,RC_ONLY,0,0,maddsubrs,A,,1,unofficial until submitted and approved/renumbered by the opf isa wg
 ```