30 lines
570 B
ArmAsm
30 lines
570 B
ArmAsm
# s1 - Contains the current position in the source text.
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.data
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.equ SYS_EXIT, 93
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.equ SOURCE_BUFFER_SIZE, 2048
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.bss
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.global source_code
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.type source_code, @object
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.size source_code, SOURCE_BUFFER_SIZE
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source_code: .zero SOURCE_BUFFER_SIZE
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.text
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.global _start # Program entry point.
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_start:
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# Read the source from the standard input.
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la a0, source_code
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li a1, SOURCE_BUFFER_SIZE # Buffer size.
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call read_file
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la s1, source_code # s1 = Source code position.
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call compile
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# Call exit.
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addi a0, zero, 0 # Use 0 return code.
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addi a7, zero, SYS_EXIT
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ecall
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