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# Startup Code for the Morpho mt

# Create a label for the start of the eh_frame section.

        .section .eh_frame

__eh_frame_begin:

        .section .text

        .global _start

_start:

        ;; Initialise the stack pointer

        ldui    sp, #%hi16(__stack)

        addui   sp, sp, #%lo16(__stack)

        or      fp, sp, sp

        ;; Zero the data space

        ldui    r9, #%hi16(_edata)

        addui   r9, r9, #%lo16(_edata)

        ldui    r10, #%hi16(_end)

        addui   r10, r10, #%lo16(_end)

        addi    r5,  r0, #0

.L0:

        stw     r5, r9, #0

        addi    r9, r9, #4

        or      r0, r0, r0      ; nop

        brle    r9, r10, .L0

        or      r0, r0, r0      ; nop

        ;; Call global and static constructors

        ldui    r10, #%hi16(_init)

        addui   r10, r10, #%lo16(_init)

        or      r0, r0, r0      ; nop

        jal     r14, r10

        or      r0, r0, r0      ; nop

        ;;  Setup destructors to be called from exit.

        ;;  (Just in case main never returns....)

        ldui    r10, #%hi16(atexit)

        addui   r10, r10, #%lo16(atexit)

        ldui    r1, #%hi16(_fini)

        addui   r1, r1, #%lo16(_fini)

        or      r0, r0, r0      ; nop

        jal     r14, r10

        or      r0, r0, r0      ; nop

        ;;  Initialise argc, argv and envp to empty

        addi    r1, r0, #0

        addi    r2, r0, #0

        addi    r3, r0, #0

        ;; Call main

        ldui    r10, #%hi16(main)

        addui   r10, r10, #%lo16(main)

        or      r0, r0, r0      ; nop

        jal     r14, r10

        or      r0, r0, r0      ; nop

        ;; Jump to exit

        ldui    r10, #%hi16(exit)

        addui   r10, r10, #%lo16(exit)

        or      r0, r0, r0      ; nop

        jal     r14, r10

        or      r0, r0, r0      ; nop