Module Name: src
Committed By: matt
Date: Thu Jul 28 22:54:02 UTC 2011
Modified Files:
src/sys/arch/vax/include: asm.h
Log Message:
Add macros for polyd and polyf
To generate a diff of this commit:
cvs rdiff -u -r1.23 -r1.24 src/sys/arch/vax/include/asm.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/vax/include/asm.h
diff -u src/sys/arch/vax/include/asm.h:1.23 src/sys/arch/vax/include/asm.h:1.24
--- src/sys/arch/vax/include/asm.h:1.23 Tue Jan 25 02:37:35 2011
+++ src/sys/arch/vax/include/asm.h Thu Jul 28 22:54:02 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: asm.h,v 1.23 2011/01/25 02:37:35 matt Exp $ */
+/* $NetBSD: asm.h,v 1.24 2011/07/28 22:54:02 matt Exp $ */
/*
* Copyright (c) 1982, 1993
* The Regents of the University of California. All rights reserved.
@@ -105,4 +105,34 @@
.popsection
#endif /* __STDC__ */
+.macro polyf arg:req degree:req tbladdr:req
+ movf \arg, %r1
+ movzwl \degree, %r2
+ movab \tbladdr, %r3
+
+ clrd %r0
+ jr 2f
+1:
+ mulf2 %r1, %r0 /* result *= arg */
+2:
+ addf2 *(%r3)+, %r0 /* result += c[n] */
+ sobgtr %r2, 1b
+ clrf %r1 /* r1 is 0 on finish */
+.endm
+
+.macro polyd arg:req degree:req tbladdr:req
+ movd \arg, %r4
+ movzwl \degree, %r2
+ movab \tbladdr, %r3
+
+ clrd %r0
+ jr 2f
+1:
+ muld2 %r4, %r0 /* result *= arg */
+2:
+ addd2 *(%r3)+, %r0 /* result += c[n] */
+ sobgtr %r2, 1b
+ clrq %r4 /* r4, r5 are 0 on finish */
+.endm
+
#endif /* !_VAX_ASM_H_ */
