diff options
Diffstat (limited to 'newlib/libc/machine/sh/strcpy.S')
-rw-r--r-- | newlib/libc/machine/sh/strcpy.S | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/newlib/libc/machine/sh/strcpy.S b/newlib/libc/machine/sh/strcpy.S deleted file mode 100644 index da951cd03..000000000 --- a/newlib/libc/machine/sh/strcpy.S +++ /dev/null @@ -1,134 +0,0 @@ -! Entry: arg0: destination -! arg1: source -! Exit: result: destination -! -! SH5 code Copyright 2002 SuperH Ltd. - -#include "asm.h" - -ENTRY(strcpy) - -#if __SHMEDIA__ - - pta/l shortstring,tr1 - ldlo.q r3,0,r4 - ptabs r18,tr4 - shlli r3,3,r7 - addi r2, 8, r0 - mcmpeq.b r4,r63,r6 - SHHI r6,r7,r6 - bnei/u r6,0,tr1 // shortstring - pta/l no_lddst, tr2 - ori r3,-8,r23 - sub r2, r23, r0 - sub r3, r2, r21 - addi r21, 8, r20 - ldx.q r0, r21, r5 - pta/l loop, tr0 - ori r2,-8,r22 - mcmpeq.b r5, r63, r6 - bgt/u r22, r23, tr2 // no_lddst - - // r22 < r23 : Need to do a load from the destination. - // r22 == r23 : Doesn't actually need to load from destination, - // but still can be handled here. - ldlo.q r2, 0, r9 - movi -1, r8 - SHLO r8, r7, r8 - mcmv r4, r8, r9 - stlo.q r2, 0, r9 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 - blink tr1, r63 // shortstring -no_lddst: - // r22 > r23: note that for r22 == r23 the sthi.q would clobber - // bytes before the destination region. - stlo.q r2, 0, r4 - SHHI r4, r7, r4 - sthi.q r0, -1, r4 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 -shortstring: -#ifndef __LITTLE_ENDIAN__ - pta/l shortstring2,tr1 - byterev r4,r4 -#endif -shortstring2: - st.b r0,-8,r4 - andi r4,0xff,r5 - shlri r4,8,r4 - addi r0,1,r0 - bnei/l r5,0,tr1 - blink tr4,r63 // return - - .balign 8 -loop: - stlo.q r0, 0, r5 - ldx.q r0, r20, r4 - addi r0, 16, r0 - sthi.q r0, -9, r5 - mcmpeq.b r4, r63, r6 - bnei/u r6, 0, tr1 // shortstring - ldx.q r0, r21, r5 - stlo.q r0, -8, r4 - sthi.q r0, -1, r4 - mcmpeq.b r5, r63, r6 - beqi/l r6, 0, tr0 // loop - - add r5, r63, r4 - addi r0, 8, r0 - blink tr1, r63 // shortstring - -#else /* ! __SHMEDIA__, i.e. SH 1..4 / SHcompact */ - -#ifdef __SH5__ -#define DST r2 -#define SRC r3 -#define TMP r4 -#define RESULT R2 -! r0,r1,r3,r4: clobbered -#else -#define DST r4 -#define SRC r5 -#define TMP r2 -#define RESULT r0 -! r1-r2,r5: clobbered -#endif - mov DST,r0 - or SRC,r0 - tst #3,r0 - SL(bf, L_setup_char_loop, mov DST,r0) - mov.l @SRC+,r1 - mov #0,TMP - cmp/str TMP,r1 - SL(bt, Longword_loop_end, sub SRC,r0) - .align 2 -Longword_loop: - mov.l r1,@(r0,SRC) - mov.l @SRC+,r1 - cmp/str TMP,r1 - bt Longword_loop_end - mov.l r1,@(r0,SRC) - mov.l @SRC+,r1 - cmp/str TMP,r1 - bf Longword_loop -Longword_loop_end: - add #-4,SRC - add #3,r0 - .align 2 -L_char_loop: - mov.b @SRC+,r1 -L_char_loop_start: - tst r1,r1 - SL(bf, L_char_loop, mov.b r1,@(r0,SRC)) - rts - mov DST,RESULT -L_setup_char_loop: - mov.b @SRC+,r1 - bra L_char_loop_start - sub SRC,r0 -#endif /* ! __SHMEDIA__ */ |