fpc/rtl/beos/i386/cprt0.as

       .file   "cprt0.s"
.data
        .align 4
default_environ:
        .long 0
.text
.globl _start
        .type    _start,@function
_start:
        pushl %ebp
        movl %esp,%ebp
        subl $4,%esp
        pushl %ebx
        call .L6
.L6:
        popl %ebx
        addl $_GLOBAL_OFFSET_TABLE_+[.-.L6],%ebx
        movl argv_save@GOT(%ebx),%eax
        movl 12(%ebp),%edi
        movl %edi,(%eax)
        movl environ@GOT(%ebx),%eax
        movl 16(%ebp),%esi
        movl %esi,(%eax)
        test %esi,%esi
        jnz .L4
        movl environ@GOT(%ebx),%eax
        movl %ebx,%ecx
        addl $default_environ@GOTOFF,%ecx
        movl %ecx,%edx
        movl %edx,(%eax)
.L4:
/*      movl %fs:0x4,%eax   this doesn't work on BeOS 4.0, let's use find_thread instead */
        pushl $0x0
        call find_thread
        movl __main_thread_id@GOT(%ebx),%edx
        movl %eax,(%edx)
        pushl %esi
        pushl %edi
        movl 8(%ebp),%eax
        pushl %eax
        call _init_c_library_
        call _call_init_routines_
        movl 8(%ebp),%eax
        movl %eax,operatingsystem_parameter_argc
        movl %edi,operatingsystem_parameter_argv
        movl %esi,operatingsystem_parameter_envp        
        xorl %ebp,%ebp
        call PASCALMAIN

.globl  _haltproc
.type   _haltproc,@function
_haltproc:
        call _thread_do_exit_notification
        xorl %ebx,%ebx
    movw operatingsystem_result,%bx
        pushl %ebx
        call exit


/* int sys_open (int=0xFF000000, char * name, int mode, int=0, int close_on_exec=0); */
.globl sys_open
.type sys_open,@function
sys_open:
xorl %eax,%eax
int $0x25
ret

/* int sys_close (int handle) */
.globl sys_close
.type sys_close,@function
sys_close:
mov $0x01,%eax
int $0x25
ret

/* int sys_read (int handle, void * buffer, int length) */
.globl sys_read
.type sys_read,@function
sys_read:
movl $0x02,%eax
int $0x25
ret

/* int sys_write (int handle, void * buffer, int length) */
.globl sys_write
.type sys_write,@function
sys_write:
movl $0x3,%eax
int $0x25
ret

/* int sys_lseek (int handle, long long pos, int whence) */
.globl sys_lseek
.type sys_lseek,@function
sys_lseek:
movl $0x5,%eax
int $0x25
ret

/* int sys_time(void) */
.globl sys_time
.type sys_time,@function
sys_time:
movl $0x7,%eax
int $0x25
ret

/* int sys_resize_area */
.globl sys_resize_area
.type sys_resize_area,@function
sys_resize_area:
movl $0x8,%eax
int $0x25
ret

/* int sys_opendir (0xFF000000, chra * name, 0) */
.globl sys_opendir
.type sys_opendir,@function
sys_opendir:
movl $0xC,%eax
int $0x25
ret


/* int sys_create_area */
.globl sys_create_area
.type sys_create_area,@function
sys_create_area:
movl $0x14,%eax
int $0x25
ret

/* int sys_readdir (int handle, void * dirent, 0x11C, 0x01000000) */
.globl sys_readdir
.type sys_readdir,@function
sys_readdir:
movl $0x1C,%eax
int $0x25
ret

/* int sys_mkdir (char=0xFF, char * name, int mode) */
.globl sys_mkdir
.type sys_mkdir,@function
sys_mkdir:
movl $0x1E,%eax
int $0x25
ret

/* int sys_wait_for_thread */
.globl sys_wait_for_thread
.type sys_wait_for_thread,@function
sys_wait_for_thread:
movl $0x22,%eax
int $0x25
ret

/* int sys_rename (int=0xFF000000, char * name, int=0xFF000000, char * newname) */
.globl sys_rename
.type sys_rename,@function
sys_rename:
movl $0x26,%eax
int $0x25
ret

/* int sys_unlink (int=0xFF000000, char * name) */
.globl sys_unlink
.type sys_unlink,@function
sys_unlink:
movl $0x27,%eax
int $0x25
ret

/* int sys_stat (int=0xFF000000, char * name, struct stat * s, int=0) */
.globl sys_stat
.type sys_stat,@function
sys_stat:
movl $0x30,%eax
int $0x25
ret

/* int sys_load_image */
.globl sys_load_image
.type sys_load_image,@function
sys_load_image:
movl $0x34,%eax
int $0x25
ret

/* void sys_exit (int exitcode) */
.globl sys_exit
.type sys_exit,@function
sys_exit:
movl $0x3F,%eax
int $0x25

/* void sys_chdir (char 0xFF, char * name) */
.globl sys_chdir
.type sys_chdir,@function
sys_chdir:
movl $0x57,%eax
int $0x25
ret

/* void sys_rmdir (char 0xFF, char * name) */
.globl sys_rmdir
.type sys_rmdir,@function
sys_rmdir:
movl $0x60,%eax
int $0x25
ret

/* actual syscall */
.globl sys_call
.type sys_call,@function
sys_call:
int $0x25
ret

.bss
        .comm operatingsystem_parameter_envp,4
        .comm operatingsystem_parameter_argc,4
        .comm operatingsystem_parameter_argv,4