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