From 8c7f4131f3ed5e051043a1200a69774658a5422c Mon Sep 17 00:00:00 2001
From: lkcl <lkcl@web>
Date: Fri, 14 Apr 2023 16:23:36 +0100
Subject: [PATCH]

---
 simple_v_extension/daxpy_example.mdwn | 31 +++++----------------------
 1 file changed, 5 insertions(+), 26 deletions(-)

diff --git a/simple_v_extension/daxpy_example.mdwn b/simple_v_extension/daxpy_example.mdwn
index 183a3b1a7..9a43ef314 100644
--- a/simple_v_extension/daxpy_example.mdwn
+++ b/simple_v_extension/daxpy_example.mdwn
@@ -1,5 +1,6 @@
+# c code
+
 ```
-    # c code
     void daxpy(size_t n, double a, const double x[], double y[])
     {
      for (size_t i = 0; i < n; i++) {
@@ -8,10 +9,10 @@
     }
 ```
 
------
+# SVP64 Power ISA version
 
 ```  
-    # SVP64 Power ISA version
+
     # r5: n
     # r5: x
     # r6: y
@@ -28,31 +29,9 @@
     blr                     # return
 ```
 
------
-
-```  
-    # SV Version
-    # a0 is n, a1 is ptr to x[0], a2 is ptr to y[0], fa0 is a (scalar)
-      VBLK.REG[0] = {type: F, isvec: 1, regkey: a3, regidx: a3, elwidth: dflt}
-      VBLK.REG[1] = {type: F, isvec: 1, regkey: a7, regidx: a7, elwidth: dflt}
-    loop:
-      VBLK.SETVL  t0, a0, #4   # MVL=4, vl = t0 = min(a0, MVL))
-      c.ld     a3, a1          # load 4 registers a3-6 from x
-      c.slli   t1, t0, 3       # t1 = vl * 8 (in bytes: FP is double)
-      c.ld     a7, a2          # load 4 registers a7-10 from y
-      c.add    a1, a1, t1      # increment pointer to x by vl*8
-      fmadd  a7, a3, fa0, a7   # v1 += v0 * fa0 (y = a * x + y)
-      c.sub    a0, a0, t0      # n -= vl (t0)
-      c.st     a7, a2          # store 4 registers a7-10 to y
-      c.add    a2, a2, t1      # increment pointer to y by vl*8
-      c.bnez   a0, loop        # repeat if n != 0
-      c.ret                    # return
-```
-
------
+# RVV version
 
 ```
-    # RVV version
     # a0 is n, a1 is pointer to x[0], a2 is pointer to y[0], fa0 is a
       li t0, 2<<25
       vsetdcfg t0             # enable 2 64b Fl.Pt. registers
-- 
2.30.2