diff options
Diffstat (limited to 'sample/c32entry.S')
-rw-r--r-- | sample/c32entry.S | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/sample/c32entry.S b/sample/c32entry.S deleted file mode 100644 index 2e40c58b..00000000 --- a/sample/c32entry.S +++ /dev/null @@ -1,66 +0,0 @@ -# ----------------------------------------------------------------------- -# -# Copyright 2003-2008 H. Peter Anvin - All Rights Reserved -# -# Permission is hereby granted, free of charge, to any person -# obtaining a copy of this software and associated documentation -# files (the "Software"), to deal in the Software without -# restriction, including without limitation the rights to use, -# copy, modify, merge, publish, distribute, sublicense, and/or -# sell copies of the Software, and to permit persons to whom -# the Software is furnished to do so, subject to the following -# conditions: -# -# The above copyright notice and this permission notice shall -# be included in all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES -# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT -# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, -# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING -# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR -# OTHER DEALINGS IN THE SOFTWARE. -# -# ----------------------------------------------------------------------- - -# COM32 start up code - must be linked first in the binary - - - .section ".text","ax" - .globl _start -_start: - # This first instruction acts as COM32 magic number - movl $0x21cd4cff,%eax - - # Upwards string operations - cld - - # Zero the .bss segment - xorl %eax,%eax - movl $__bss_start,%edi # Symbol provided by linker - movl $_end+3,%ecx # Symbol provided by linker - subl %edi,%ecx - shrl $2,%ecx - rep ; stosl - - # Copy COM32 invocation parameters - leal 4(%esp),%esi # Argument list - movl $__com32,%edi - movl $6,%ecx - movl %esp,-4(%edi) # Save the initial stack ptr - cmpl (%esi),%ecx - jbe 1f - movl (%esi),%ecx -1: rep ; movsl - - # Run program; we call this __start rather than main since we - # did not parse the command line or anything like that. - jmp __start - - .section ".bss","aw" - .globl __entry_esp -__entry_esp: .space 4 - .globl __com32 -__com32: .space 4*6 |