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Diffstat (limited to 'sysdeps/m68k/memcopy.h')
| -rw-r--r-- | sysdeps/m68k/memcopy.h | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/sysdeps/m68k/memcopy.h b/sysdeps/m68k/memcopy.h deleted file mode 100644 index 0951eeaf7a..0000000000 --- a/sysdeps/m68k/memcopy.h +++ /dev/null @@ -1,100 +0,0 @@ -/* memcopy.h -- definitions for memory copy functions. Motorola 68020 version. - Copyright (C) 1991, 1997, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Torbjorn Granlund (tege@sics.se). - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdeps/generic/memcopy.h> - -#if defined(__mc68020__) || defined(mc68020) - -#undef OP_T_THRES -#define OP_T_THRES 16 - -/* WORD_COPY_FWD and WORD_COPY_BWD are not symmetric on the 68020, - because of its weird instruction overlap characteristics. */ - -#undef WORD_COPY_FWD -#define WORD_COPY_FWD(dst_bp, src_bp, nbytes_left, nbytes) \ - do \ - { \ - size_t __nwords = (nbytes) / sizeof (op_t); \ - size_t __nblocks = __nwords / 8 + 1; \ - dst_bp -= (8 - __nwords % 8) * sizeof (op_t); \ - src_bp -= (8 - __nwords % 8) * sizeof (op_t); \ - switch (__nwords % 8) \ - do \ - { \ - ((op_t *) dst_bp)[0] = ((op_t *) src_bp)[0]; \ - case 7: \ - ((op_t *) dst_bp)[1] = ((op_t *) src_bp)[1]; \ - case 6: \ - ((op_t *) dst_bp)[2] = ((op_t *) src_bp)[2]; \ - case 5: \ - ((op_t *) dst_bp)[3] = ((op_t *) src_bp)[3]; \ - case 4: \ - ((op_t *) dst_bp)[4] = ((op_t *) src_bp)[4]; \ - case 3: \ - ((op_t *) dst_bp)[5] = ((op_t *) src_bp)[5]; \ - case 2: \ - ((op_t *) dst_bp)[6] = ((op_t *) src_bp)[6]; \ - case 1: \ - ((op_t *) dst_bp)[7] = ((op_t *) src_bp)[7]; \ - case 0: \ - src_bp += 32; \ - dst_bp += 32; \ - __nblocks--; \ - } \ - while (__nblocks != 0); \ - (nbytes_left) = (nbytes) % sizeof (op_t); \ - } while (0) - -#undef WORD_COPY_BWD -#define WORD_COPY_BWD(dst_ep, src_ep, nbytes_left, nbytes) \ - do \ - { \ - size_t __nblocks = (nbytes) / 32 + 1; \ - op_t *__dst_ep = (op_t *) (dst_ep); \ - op_t *__src_ep = (op_t *) (src_ep); \ - switch ((nbytes) / sizeof (op_t) % 8) \ - do \ - { \ - *--__dst_ep = *--__src_ep; \ - case 7: \ - *--__dst_ep = *--__src_ep; \ - case 6: \ - *--__dst_ep = *--__src_ep; \ - case 5: \ - *--__dst_ep = *--__src_ep; \ - case 4: \ - *--__dst_ep = *--__src_ep; \ - case 3: \ - *--__dst_ep = *--__src_ep; \ - case 2: \ - *--__dst_ep = *--__src_ep; \ - case 1: \ - *--__dst_ep = *--__src_ep; \ - case 0: \ - __nblocks--; \ - } \ - while (__nblocks != 0); \ - (nbytes_left) = (nbytes) % sizeof (op_t); \ - (dst_ep) = (unsigned long) __dst_ep; \ - (src_ep) = (unsigned long) __src_ep; \ - } while (0) - -#endif |