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lib1funcs.asm (___fixunssfsi): Change the threshold to 0x4f.

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* config/h8300/lib1funcs.asm (___fixunssfsi): Change the
	threshold to 0x4f.

	Revert:
	2004-02-27  Kazu Hirata  <kazu@cs.umass.edu>
	* config/h8300/fixunssfsi.c (__fixunssfsi): Enable on H8/300
	as well.
	* config/h8300/lib1funcs.asm (___fixunssfsi): Remove.
	* config/h8300/t-h8300 (LIB1ASMFUNCS): Remove _fixunssfsi_asm.

From-SVN: r78818
This commit is contained in:
Kazu Hirata 2004-03-03 04:53:16 +00:00 • committed by Kazu Hirata
parent 66c87bae65
commit cb36ddbac1
4 changed files with 46 additions and 2 deletions
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12
gcc/ChangeLog
View file

@ -1,3 +1,15 @@
2004-03-02 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/lib1funcs.asm (___fixunssfsi): Change the
threshold to 0x4f.
Revert:
2004-02-27 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/fixunssfsi.c (__fixunssfsi): Enable on H8/300
as well.
* config/h8300/lib1funcs.asm (___fixunssfsi): Remove.
* config/h8300/t-h8300 (LIB1ASMFUNCS): Remove _fixunssfsi_asm.
2004-03-02 Kazu Hirata <kazu@cs.umass.edu>
* doc/md.texi (cbranchmode4): New.

5
gcc/config/h8300/fixunssfsi.c
View file

@ -29,8 +29,10 @@ the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* The libgcc2.c implementation gets confused by our type setup and creates
a directly recursive call, so we do our own implementation. */
a directly recursive call, so we do our own implementation. For
the H8/300, that's in lib1funcs.asm, for H8/300H and H8S, it's here. */
#ifndef __H8300__
long __fixunssfsi (float a);
long
@ -40,3 +42,4 @@ __fixunssfsi (float a)
return (long) (a - 32768L) + 32768L;
return (long) a;
}
#endif

28
gcc/config/h8300/lib1funcs.asm
View file

@ -806,3 +806,31 @@ L_skip2:
#endif
#endif /* L_mulsi3 */
#ifdef L_fixunssfsi_asm
/* For the h8300 we use asm to save some bytes, to
allow more programs to fit into the tiny address
space. For the H8/300H and H8S, the C version is good enough. */
#ifdef __H8300__
/* We still treat NANs different than libgcc2.c, but then, the
behavior is undefined anyways. */
.global ___fixunssfsi
___fixunssfsi:
cmp.b #0x4f,r0h
bge Large_num
jmp @___fixsfsi
Large_num:
bhi L_huge_num
xor.b #0x80,A0L
bmi L_shift8
L_huge_num:
mov.w #65535,A0
mov.w A0,A1
rts
L_shift8:
mov.b A0L,A0H
mov.b A1H,A0L
mov.b A1L,A1H
mov.b #0,A1L
rts
#endif
#endif /* L_fixunssfsi_asm */

3
gcc/config/h8300/t-h8300
View file

@ -1,5 +1,6 @@
LIB1ASMSRC = h8300/lib1funcs.asm
LIB1ASMFUNCS = _cmpsi2 _ucmpsi2 _divhi3 _divsi3 _mulhi3 _mulsi3
LIB1ASMFUNCS = _cmpsi2 _ucmpsi2 _divhi3 _divsi3 _mulhi3 _mulsi3 \
_fixunssfsi_asm
LIB2FUNCS_EXTRA = \
$(srcdir)/config/h8300/clzhi2.c \