diff options
Diffstat (limited to 'newlib/libc/machine/h8300/memcpy.S')
| -rw-r--r-- | newlib/libc/machine/h8300/memcpy.S | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/newlib/libc/machine/h8300/memcpy.S b/newlib/libc/machine/h8300/memcpy.S deleted file mode 100644 index 3465ce558..000000000 --- a/newlib/libc/machine/h8300/memcpy.S +++ /dev/null @@ -1,48 +0,0 @@ -#include "defines.h" - -#ifdef __H8300H__ - .h8300h -#endif - -#ifdef __H8300S__ - .h8300s -#endif - - .global _memcpy -_memcpy: -; MOVP @(2/4,r7),A0P ; dst -; MOVP @(4/8,r7),A1P ; src -; MOVP @(6/12,r7),A2P ; len - - MOVP A0P,A3P ; keep copy of final dst - ADDP A2P,A0P ; point to end of dst - CMPP A0P,A3P ; see if anything to do - beq quit - - ADDP A2P,A1P ; point to end of src - - ; lets see if we can do this in words - or A0L,A2L ; or in the dst address - or A3L,A2L ; or the length - or A1L,A2L ; or the src address - btst #0,A2L ; see if the lsb is zero - bne byteloop - -wordloop: - subs #2,A1P ; point to word - mov.w @A1P,A2 ; get word - mov.w A2,@-A0P ; save word - CMPP A0P,A3P ; at the front again ? - bne wordloop - rts - -byteloop: - subs #1,A1P ; point to byte - mov.b @A1P,A2L ; get byte - mov.b A2L,@-A0P ; save byte - CMPP A0P,A3P ; at the front again ? - bne byteloop - - ; return with A0 pointing to dst -quit: rts - |