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; h8/300 and h8/300h start up file.
 
#ifdef __H8300__
 
        .section .text
        .global _start
_start:
        mov.w   #_stack,sp
        mov.w   #_edata,r0
        mov.w   #_end,r1
        mov.w   #0,r2
.loop:  mov.w   r2,@r0
        adds    #2,r0
        cmp     r1,r0
        blo     .loop
        jsr     @___main
        jsr     @_main
        jsr     @_exit
 
        .section .stack
_stack: .word   1
 
#endif
 
#ifdef __H8300H__
 
        .h8300h
        .section .text
        .global _start
_start:
        mov.l   #_stack,sp
        mov.l   #_edata,er0
        mov.l   #_end,er1
        mov.w   #0,r2           ; not sure about alignment requirements
.loop:  mov.w   r2,@er0         ; playing it safe for now
        adds    #2,er0
        cmp.l   er1,er0
        blo     .loop
        jsr     @___main
        jsr     @_main
        jsr     @_exit
 
        .section .stack
_stack: .long   1
 
#endif
 
#ifdef __H8300S__
 
        .h8300s
        .section .text
        .global _start
_start:
        mov.l   #_stack,sp
        mov.l   #_edata,er0
        mov.l   #_end,er1
        mov.w   #0,r2           ; not sure about alignment requirements
.loop:  mov.w   r2,@er0         ; playing it safe for now
        adds    #2,er0
        cmp.l   er1,er0
        blo     .loop
        jsr     @___main
        jsr     @_main
        jsr     @_exit
 
        .section .stack
_stack: .long   1
 
#endif

Line No.	Rev	Author	Line
1	39	lampret	`; h8/300 and h8/300h start up file.`
2
3			`#ifdef __H8300__`
4
5			`.section .text`
6			`.global _start`
7			`_start:`
8			`mov.w #_stack,sp`
9			`mov.w #_edata,r0`
10			`mov.w #_end,r1`
11			`mov.w #0,r2`
12			`.loop: mov.w r2,@r0`
13			`adds #2,r0`
14			`cmp r1,r0`
15			`blo .loop`
16			`jsr @___main`
17			`jsr @_main`
18			`jsr @_exit`
19
20			`.section .stack`
21			`_stack: .word 1`
22
23			`#endif`
24
25			`#ifdef __H8300H__`
26
27			`.h8300h`
28			`.section .text`
29			`.global _start`
30			`_start:`
31			`mov.l #_stack,sp`
32			`mov.l #_edata,er0`
33			`mov.l #_end,er1`
34			`mov.w #0,r2 ; not sure about alignment requirements`
35			`.loop: mov.w r2,@er0 ; playing it safe for now`
36			`adds #2,er0`
37			`cmp.l er1,er0`
38			`blo .loop`
39			`jsr @___main`
40			`jsr @_main`
41			`jsr @_exit`
42
43			`.section .stack`
44			`_stack: .long 1`
45
46			`#endif`
47
48			`#ifdef __H8300S__`
49
50			`.h8300s`
51			`.section .text`
52			`.global _start`
53			`_start:`
54			`mov.l #_stack,sp`
55			`mov.l #_edata,er0`
56			`mov.l #_end,er1`
57			`mov.w #0,r2 ; not sure about alignment requirements`
58			`.loop: mov.w r2,@er0 ; playing it safe for now`
59			`adds #2,er0`
60			`cmp.l er1,er0`
61			`blo .loop`
62			`jsr @___main`
63			`jsr @_main`
64			`jsr @_exit`
65
66			`.section .stack`
67			`_stack: .long 1`
68
69			`#endif`

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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [sys/] [h8300hms/] [crt0.S] - Blame information for rev 1774