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Files
amiga-clib2/library/nrcrt0.S
Olaf Barthel 6612118e97 - log(+/-0), logb(+/-0), log10(+/-0) now return -infinity.
- getcwd() now considers a buffer size of 0 an error, and it sets
  the errno code to ERANGE if the buffer is too small.

- With Unix path semantics enabled, rename() now fails if either
  the old or the new name are empty strings. Same thing for
  opendir(), utime(), unlink(), chown(), link(), readlink(),
  realpath(), chdir(), access(), stat(), rmdir(), lstat(),
  chmod(), statfs() and open()/fopen().

- Fixed several issues with the formatted output of strftime()
  for the "C" locale: "%p" could return " PM", "%c" is now
  equivalent to "%a %b %e %T %Y", "%x" is equivalent to "%m/%d/%y"
  and "%X" is now equivalent to "%T".


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15020 87f5fb63-7c3d-0410-a384-fd976d0f7a62
2005-08-26 12:39:33 +00:00

184 lines
3.8 KiB
ArmAsm

|
| $Id: nrcrt0.S,v 1.4 2005-08-26 12:39:33 obarthel Exp $
|
| :ts=4
|
| Portable ISO 'C' (1994) runtime library for the Amiga computer
| Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
| All rights reserved.
|
| Redistribution and use in source and binary forms, with or without
| modification, are permitted provided that the following conditions
| are met:
|
| - Redistributions of source code must retain the above copyright
| notice, this list of conditions and the following disclaimer.
|
| - Neither the name of Olaf Barthel nor the names of contributors
| may be used to endorse or promote products derived from this
| software without specific prior written permission.
|
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
| LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
| CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
| INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
| CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
| POSSIBILITY OF SUCH DAMAGE.
|
|-----------------------------------------------------------------------------
LVOAllocMem = -0xc6
LVOFreeMem = -0xd2
LVOFindTask = -0x126
LVOCopyMem = -0x270
|-----------------------------------------------------------------------------
pr_Result2 = 148
pr_CLI = 172
|-----------------------------------------------------------------------------
RETURN_FAIL = 20
ERROR_NO_FREE_STORE = 103
|-----------------------------------------------------------------------------
MEMF_CLEAR = 65536
|-----------------------------------------------------------------------------
.text
.globl _main | This enforces linkage against the main() function
.globl __main
.globl ___is_resident
|-----------------------------------------------------------------------------
movel 4:W,a6
subal a1,a1
jsr a6@(LVOFindTask:W)
movel d0,a2
tstl a2@(pr_CLI:W)
bnes from_shell
|-----------------------------------------------------------------------------
lea ___a4_init,a4
movel #___bss_size,d1
beqs no_bss
#if defined(SMALL_DATA)
lea a4@(__edata:W),a1
#endif /* SMALL_DATA */
#if defined(SMALL_DATA32)
lea a4@(__edata:L),a1
#endif /* SMALL_DATA32 */
clear_bss:
clrl a1@+
subql #4,d1
bnes clear_bss
no_bss:
jmp __main
|-----------------------------------------------------------------------------
from_shell:
movel #___data_size,d5
movel #___bss_size,d0
addl d5,d0
movel #MEMF_CLEAR,d1
jsr a6@(LVOAllocMem:W)
tstl d0
beqs fail
movel d0,a4
lea ___a4_init-0x7ffe,a5
movel d5,d0
movel a5,a0
movel a4,a1
jsr a6@(LVOCopyMem:W)
lea ___datadata_relocs,a0
movel a0@+,d0
beqs no_reloc
movel a5,d1
subl a4,d1
do_reloc:
movel a0@+,a1
subl d1,a4@(a1:l)
subql #1,d0
bnes do_reloc
no_reloc:
lea a4@(0x7ffe:W),a4
#if defined(SMALL_DATA)
lea a4@(___is_resident:W),a2
#endif /* SMALL_DATA */
#if defined(SMALL_DATA32)
lea a4@(___is_resident:L),a2
#endif /* SMALL_DATA32 */
movew #1,a2@
jbsr __main
movel d0,d2
movel 4:W,a6
movel #___data_size,d0
addl #___bss_size,d0
lea a4@(-0x7ffe:W),a1
jsr a6@(LVOFreeMem:W)
movel d2,d0
rts
fail:
movel #ERROR_NO_FREE_STORE,a2@(pr_Result2:W)
moveql #RETURN_FAIL,d0
rts
|-----------------------------------------------------------------------------
.globl ___get_a4
___get_a4:
movel a4,d0
rts
|-----------------------------------------------------------------------------
.globl ___set_a4
___set_a4:
movel sp@(4),a4
rts