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2003-11-20 Dhananjay Deshpande <dhananjayd@kpitcummins.com> 

* libc/machine/h8300/defines.h : Correct pointer register defines
        for normal mode.
        * libc/machine/h8300/memcpy.S : Use add/sub instead of adds/subs
        for normal mode.
        * libc/machine/h8300/reg_memcpy.S : Likewise.
        * libc/machine/h8300/reg_memset.S : Likewise.
        * libc/machine/h8300/strcmp.S : Likewise.
This commit is contained in:
Jeff Johnston 2003-11-20 19:59:03 +00:00
parent 94cacaf60b
commit 7343eefbde
6 changed files with 82 additions and 5 deletions
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10
newlib/ChangeLog
View File

@ -1,3 +1,13 @@
2003-11-20 Dhananjay Deshpande <dhananjayd@kpitcummins.com>
* libc/machine/h8300/defines.h : Correct pointer register defines
for normal mode.
* libc/machine/h8300/memcpy.S : Use add/sub instead of adds/subs
for normal mode.
* libc/machine/h8300/reg_memcpy.S : Likewise.
* libc/machine/h8300/reg_memset.S : Likewise.
* libc/machine/h8300/strcmp.S : Likewise.
2003-11-19 Nicholas Wourms <nwourms@netscape.net>
* configure.host: Enable positional arguments for printf

52
newlib/libc/machine/h8300/defines.h
View File

@ -28,6 +28,7 @@
#define S2H r6h
#ifdef __H8300__
#define MOVP mov.w /* pointers are 16 bits */
#define ADDP add.w
#define CMPP cmp.w
@ -41,9 +42,29 @@
#define S0P r4
#define S1P r5
#define S2P r6
#endif
#endif /* __H8300__ */
#ifdef __H8300H__
#ifdef __NORMAL_MODE__
#define MOVP mov.w /* pointers are 16 bits */
#define ADDP add.w
#define CMPP cmp.w
#define PUSHP push
#define POPP pop
#define A0P r0
#define A1P r1
#define A2P r2
#define A3P r3
#define S0P r4
#define S1P r5
#define S2P r6
#else /* !__NORMAL_MODE__ */
#define MOVP mov.l /* pointers are 32 bits */
#define ADDP add.l
#define CMPP cmp.l
@ -58,13 +79,35 @@
#define S1P er5
#define S2P er6
#endif /* !__NORMAL_MODE__ */
#define A0E e0
#define A1E e1
#define A2E e2
#define A3E e3
#endif
#endif /* __H8300H__ */
#ifdef __H8300S__
#ifdef __NORMAL_MODE__
#define MOVP mov.w /* pointers are 16 bits */
#define ADDP add.w
#define CMPP cmp.w
#define PUSHP push
#define POPP pop
#define A0P r0
#define A1P r1
#define A2P r2
#define A3P r3
#define S0P r4
#define S1P r5
#define S2P r6
#else /* !__NORMAL_MODE__ */
#define MOVP mov.l /* pointers are 32 bits */
#define ADDP add.l
#define CMPP cmp.l
@ -79,8 +122,11 @@
#define S1P er5
#define S2P er6
#endif /* !__NORMAL_MODE__ */
#define A0E e0
#define A1E e1
#define A2E e2
#define A3E e3
#endif
#endif /* __H8300S__ */

8
newlib/libc/machine/h8300/memcpy.S
View File

@ -23,7 +23,11 @@ _memcpy:
bne byteloop
wordloop:
#ifdef __NORMAL_MODE__
sub #2,A1P
#else
subs #2,A1P ; point to word
#endif
mov.w @A1P,A2 ; get word
mov.w A2,@-A0P ; save word
CMPP A0P,A3P ; at the front again ?
@ -31,7 +35,11 @@ wordloop:
rts
byteloop:
#ifdef __NORMAL_MODE__
sub #1,A1P
#else
subs #1,A1P ; point to byte
#endif
mov.b @A1P,A2L ; get byte
mov.b A2L,@-A0P ; save byte
CMPP A0P,A3P ; at the front again ?

8
newlib/libc/machine/h8300/reg_memcpy.S
View File

@ -14,8 +14,12 @@ ___reg_memcpy:
CMPP A0P,A3P ; see if anything to do
beq quit
loop: subs #1,A1P ; point to byte
loop:
#ifdef __NORMAL_MODE__
sub #1,A1P ; point to byte
#else
subs #1,A1P ; point to byte
#endif
mov.b @A1P,A2L ; get byte
mov.b A2L,@-A0P ; save byte
CMPP A0P,A3P ; at the front again ?

5
newlib/libc/machine/h8300/reg_memset.S
View File

@ -14,8 +14,13 @@ ___reg_memset:
memloop:
mov.b A1L,@A0P
#ifdef __NORMAL_MODE__
add #1,A0P
sub #1,A2P
#else
adds #1,A0P
subs #1,A2P
#endif
MOVP A2P,A2P
bne memloop

4
newlib/libc/machine/h8300/strcmp.S
View File

@ -14,7 +14,11 @@ _strcmp:
mov.b @A3P+,A0L
cmp.b A0L,A1L
beq .L5
#ifdef __NORMAL_MODE__
sub #1,A3P
#else
subs #1,A3P
#endif
.L3:
mov.b @(-1,A2P),A0L
mov.b @A3P,A1L