From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 12 Feb 2024 17:51:50 +0000 (+0000)
Subject: bug 1244: add assembler and python maxloc listing to slides
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d397b9617;p=libreriscv.git

bug 1244: add assembler and python maxloc listing to slides
---

diff --git a/conferences/fosdem2024/fosdem2024_ddffirst/fosdem2024_ddffirst.tex b/conferences/fosdem2024/fosdem2024_ddffirst/fosdem2024_ddffirst.tex
index 3317021a8..fdbc83369 100644
--- a/conferences/fosdem2024/fosdem2024_ddffirst/fosdem2024_ddffirst.tex
+++ b/conferences/fosdem2024/fosdem2024_ddffirst/fosdem2024_ddffirst.tex
@@ -217,11 +217,19 @@ for (i = 0; i < VL; i++)
 }
 
 \frame{\frametitle{maxloc}
+    \lstinputlisting[language={}]{maxloc.py}
+
 	\begin{itemize}
 		\item "TODO
 	\end{itemize}
 }
 
+\frame{\frametitle{maxlocassembler}
+	
+	\lstinputlisting[language={}]{maxloc.s}
+	
+}
+
 \frame{\frametitle{Summary}
 
  \begin{itemize}
diff --git a/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.py b/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.py
index 031ffc33d..e596151f8 100644
--- a/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.py
+++ b/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.py
@@ -1,4 +1,3 @@
-
 m,nm,i,n = 0,0,0,len(a)
 while (i<n):
   while (i<n and a[i]<=m): i += 1
diff --git a/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.s b/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.s
index f94ebb7f2..f72de742a 100644
--- a/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.s
+++ b/conferences/fosdem2024/fosdem2024_ddffirst/maxloc.s
@@ -1,15 +1,15 @@
 # while (i<n)
-setvl 2,0,4,0,1,1            # set MVL=4, VL=MIN(MVL,CTR)
-#    while (i<n and a[i]<=m) : i += 1
+setvl 2,0,4,0,1,1     # set MVL=4,VL=MIN(MVL,CTR)
+#  while (i<n and a[i]<=m) : i += 1
 sv.cmp/ff=gt/m=ge *0,0,*10,4 # truncates VL to min
-sv.creqv *16,*16,*16         # set mask on already-tested
-setvl 2,0,4,0,1,1            # set MVL=4, VL=MIN(MVL,CTR)
-mtcrf 128, 0                 # clear CR0 (in case VL=0?)
-#    while (i<n and a[i]>m):
-sv.minmax./ff=le/m=ge/mr 4,*10,4,1 # r4 accumulator
-crternlogi 0,1,2,127         # test greater/equal or VL=0
-sv.crand *19,*16,0           # clear if CR0.eq=0
-#      nm = i (count masked bits. could use crweirds here)
-sv.svstep/mr/m=so 1,0,6,1    # svstep: get vector dststep
-sv.creqv *16,*16,*16         # set mask on already-tested
-bc 12,0, -0x40               # CR0 lt bit clear, branch back
+sv.creqv *16,*16,*16  # set mask on already-tested
+setvl 2,0,4,0,1,1     # set MVL=4,VL=MIN(MVL,CTR)
+mtcrf 128,0           # clear CR0 (in case VL=0?)
+#  while (i<n and a[i]>m):
+sv.minmax./ff=le/m=ge/mr 4,*10,4,1 # r4 accumulate
+crternlogi 0,1,2,127  # test >= (or VL=0)
+sv.crand *19,*16,0    # clear if CR0.eq=0
+#   nm = i: count masked bits. could use crweirds
+sv.svstep/mr/m=so 1,0,6,1 # get vector dststep
+sv.creqv *16,*16,*16  # set mask on already-tested
+bc 12,0,-0x40         # CR0 lt clear, branch back