2024-03-19 09:24:25 -05:00
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section .text,text
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public syscall_exit
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; Exits the process
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syscall_exit:
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move.l #0, d0
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trap #0
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rts
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public syscall_yield
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; Yields to the next process
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syscall_yield:
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move.l #1, d0
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rts
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public syscall_print
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; Prints the string pointed to by d0
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syscall_print:
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move.l d0, d1
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move.l #2, d0
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trap #0
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rts
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public syscall_println
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; Prints the string pointed to by d0 followed by a newline
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syscall_println:
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move.l d0, d1
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move.l #3, d0
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trap #0
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rts
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public syscall_vmem_map
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; Maps the range of pages starting at address a0 with length d0 to free physical frames
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; Permission flags in d1
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syscall_vmem_map:
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move.l d2, -(a7)
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move.l d1, d2
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move.l d0, d1
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move.l #4, d0
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trap #0
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move.l (a7)+, d2
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rts
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public syscall_vmem_map_free
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; Map a free range of pages with length d0 to free physical frames
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; Returns the range start in a0
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; Permission flags in d1
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syscall_vmem_map_free:
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move.l d2, -(a7)
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move.l d1, d2
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move.l d0, d1
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move.l #5, d0
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trap #0
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move.l (a7)+, d2
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rts
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public syscall_vmem_map_free_to
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; Maps a free range of virtual pages with length d1 to the range of physical frames starting at d0
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; Returns the range start in a0
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; Permission flags in d2
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syscall_vmem_map_free_to:
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move.l d3, -(a7)
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move.l d2, d3
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move.l d1, d2
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move.l d0, d1
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move.l #6, d0
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trap #0
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move.l (a7)+, d3
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rts
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2024-03-19 12:50:52 -05:00
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public syscall_vmem_set_flags
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; Sets the permission flags of the range of virtual pages starting at address a0 with length d1 to d0
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syscall_vmem_set_flags:
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move.l d2, -(a7)
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move.l d1, d2
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move.l d0, d1
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move.l #7, d0
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trap #0
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move.l (a7)+, d2
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rts
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