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* libc/machine/sh/memset.S (memset, __SHMEDIA__ code):

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Also handle as single quad word when destination ends at last
	byte of first quad word.  Fix byte selection in single quad code.
This commit is contained in:
Joern Rennecke 2002-05-08 17:56:50 +00:00
parent 0dc9d4d7ed
commit 96bff22c5d
2 changed files with 24 additions and 16 deletions
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20
newlib/ChangeLog
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@ -1,3 +1,9 @@
Wed May 8 17:47:35 2002 J"orn Rennecke <joern.rennecke@superh.com>
* libc/machine/sh/memset.S (memset, __SHMEDIA__ code):
Also handle as single quad word when destination ends at last
byte of first quad word. Fix byte selection in single quad code.
2002-05-07 Thomas Fitzsimmons <fitzsim@redhat.com> 2002-05-07 Thomas Fitzsimmons <fitzsim@redhat.com>
* libc/include/sys/stdio.h: New file. * libc/include/sys/stdio.h: New file.
@ -685,14 +691,14 @@ Tue Mar 26 17:17:10 2002 J"orn Rennecke <joern.rennecke@superh.com>
Wed Mar 6 10:24:26 2002 J"orn Rennecke <joern.rennecke@superh.com> Wed Mar 6 10:24:26 2002 J"orn Rennecke <joern.rennecke@superh.com>
* Makefile.am (lib_a_SOURCES, SH64 case): Add memcpy.S, memset.S * libc/machine/sh/Makefile.am (lib_a_SOURCES, SH64 case):
and strcpy.S. Add memcpy.S, memset.S and strcpy.S.
* Makefile.in: Regenerate. * libc/machine/sh/Makefile.in: Regenerate.
* asm.h (_ENTRY): Set SH5 alignment to 8 bytes. * libc/machine/sh/asm.h (_ENTRY): Set SH5 alignment to 8 bytes.
(SHHI, SHLO): Define. (SHHI, SHLO): Define.
* memcpy.S: Add code for SH5. * libc/machine/sh/memset.S: Add code for SH5.
* memset.S: Likewise. * libc/machine/sh/memset.S: Likewise.
* strcpy.S: Likewise. * libc/machine/sh/strcpy.S: Likewise.
2002-02-27 Jeff Johnston <jjohnstn@redhat.com> 2002-02-27 Jeff Johnston <jjohnstn@redhat.com>

20
newlib/libc/machine/sh/memset.S
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@ -12,33 +12,35 @@
ENTRY(memset) ENTRY(memset)
#if __SHMEDIA__ #if __SHMEDIA__
pta/l multiquad, tr0 pta/l multiquad, tr0
andi r2, 7, r22
ptabs r18, tr2 ptabs r18, tr2
mshflo.b r3,r3,r3 mshflo.b r3,r3,r3
mperm.w r3, r63, r3
andi r2, 7, r22
add r4, r22, r23 add r4, r22, r23
shlri r23, 3, r24 mperm.w r3, r63, r3 // Fill pattern now in every byte of r3
bnei/u r24, 0, tr0
movi 8, r9
bgtu/u r23, r9, tr0
ldlo.q r2, 0, r7 ldlo.q r2, 0, r7
shlli r4, 3, r4 shlli r4, 2, r4
movi -1, r8 movi -1, r8
SHHI r8, r4, r8 SHHI r8, r4, r8
mcmv r7, r8, r22 SHHI r8, r4, r8
stlo.q r2, 0, r22 mcmv r7, r8, r3
stlo.q r2, 0, r3
blink tr2, r63 blink tr2, r63
multiquad: multiquad:
pta/l lastquad, tr0 pta/l lastquad, tr0
stlo.q r2, 0, r3 stlo.q r2, 0, r3
shlri r23, 3, r24
add r2, r4, r5 add r2, r4, r5
beqi/u r24, 1, tr0 // lastquad beqi/u r24, 1, tr0 // lastquad
pta/l loop, tr1 pta/l loop, tr1
sub r2, r22, r25 sub r2, r22, r25
andi r5, -8, r20 // calculate end address and andi r5, -8, r20 // calculate end address and
addi r20, -7*8, r8 // loop end address; This might overflow, so we need addi r20, -7*8, r8 // loop end address; This might overflow, so we need
movi 8, r9 // to use a different test before we start the loop // to use a different test before we start the loop
bge/u r24, r9, tr1 // loop bge/u r24, r9, tr1 // loop
st.q r25, 8, r3 st.q r25, 8, r3
st.q r20, -8, r3 st.q r20, -8, r3