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[/] [scarts/] [trunk/] [toolchain/] [scarts-newlib/] [newlib-1.17.0/] [newlib/] [libc/] [sys/] [sysmec/] [crt0.S] - Blame information for rev 9

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#ifdef __mn10300__
        .section .text
        .global _start
_start:
        mov _stack-8,a0         # Load up the stack pointer
        mov a0,sp
 
        mov _edata,a0           # Get the start/end of bss
        mov _end,a1
 
        cmp a0,a1               # If no bss, then do nothing
        beq .L0
 
        clr d0                  # clear d0
 
.L1:
        movbu d0,(a0)           # Clear a byte and bump pointer
        inc a0
        cmp a0,a1
        bne .L1
 
.L0:
        call ___main,[],0       # Call __main to run ctors/dtors
        clr d0
        clr d1
        mov d0,(4,sp)
        call _main,[],0         # Call main program
        call _exit,[],0         # All done, no need to return or
                                # deallocate our stack.
 
        .section ._stack
_stack: .long   1
#else
        .section .text
        .global _start
_start:
        mov _stack-4,a3         # Load up the stack pointer and allocate
                                # our current frame.
 
        mov _edata,a0           # Get the start/end of bss
        mov _end,a1
 
        cmp a0,a1               # If no bss, then do nothing
        beqx .L0
 
        sub d0,d0               # clear d0
 
.L1:
        movb d0,(a0)            # Clear a byte and bump pointer
        add 1,a0
        cmp a0,a1
        bnex .L1
 
.L0:
        jsr ___main
        sub d0,d0
        mov d0,d1
        mov d0,(a3)
        jsr _main               # Call main program
        jmp _exit               # All done, no need to return or
                                # deallocate our stack.
 
        .section ._stack
_stack: .long   1
#endif

Line No.	Rev	Author	Line
1	9	jlechner	`#ifdef __mn10300__`
2			`.section .text`
3			`.global _start`
4			`_start:`
5			`mov _stack-8,a0 # Load up the stack pointer`
6			`mov a0,sp`
7
8			`mov _edata,a0 # Get the start/end of bss`
9			`mov _end,a1`
10
11			`cmp a0,a1 # If no bss, then do nothing`
12			`beq .L0`
13
14			`clr d0 # clear d0`
15
16			`.L1:`
17			`movbu d0,(a0) # Clear a byte and bump pointer`
18			`inc a0`
19			`cmp a0,a1`
20			`bne .L1`
21
22			`.L0:`
23			`call ___main,[],0 # Call __main to run ctors/dtors`
24			`clr d0`
25			`clr d1`
26			`mov d0,(4,sp)`
27			`call _main,[],0 # Call main program`
28			`call _exit,[],0 # All done, no need to return or`
29			`# deallocate our stack.`
30
31			`.section ._stack`
32			`_stack: .long 1`
33			`#else`
34			`.section .text`
35			`.global _start`
36			`_start:`
37			`mov _stack-4,a3 # Load up the stack pointer and allocate`
38			`# our current frame.`
39
40			`mov _edata,a0 # Get the start/end of bss`
41			`mov _end,a1`
42
43			`cmp a0,a1 # If no bss, then do nothing`
44			`beqx .L0`
45
46			`sub d0,d0 # clear d0`
47
48			`.L1:`
49			`movb d0,(a0) # Clear a byte and bump pointer`
50			`add 1,a0`
51			`cmp a0,a1`
52			`bnex .L1`
53
54			`.L0:`
55			`jsr ___main`
56			`sub d0,d0`
57			`mov d0,d1`
58			`mov d0,(a3)`
59			`jsr _main # Call main program`
60			`jmp _exit # All done, no need to return or`
61			`# deallocate our stack.`
62
63			`.section ._stack`
64			`_stack: .long 1`
65			`#endif`

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[/] [scarts/] [trunk/] [toolchain/] [scarts-newlib/] [newlib-1.17.0/] [newlib/] [libc/] [sys/] [sysmec/] [crt0.S] - Blame information for rev 9