Subversion Repositories openrisc_me

        comment "subroutine prologue"

        .macro gdbasm_enter

        push fp -> push lr

        addi sp,#-4 -> mv fp,sp

        .endm

        comment "subroutine epilogue"

        .macro gdbasm_leave

        addi sp,#4 -> pop lr

        pop fp -> jmp lr

        .endm

        .macro gdbasm_call subr

        bl      \subr

        .endm

        .macro gdbasm_several_nops

        nop

        nop

        nop

        nop

        .endm

        comment "exit (0)"

        .macro gdbasm_exit0

        ldi r0,#1 -> ldi r1,#0

        ldi r2,#0 -> ldi r3,#0

        trap #0 -> nop

        .endm

        comment "crt0 startup"

        .macro gdbasm_startup

        seth sp, #shigh(_stack)

        add3 sp, sp, #low(_stack)

        ldi fp,#0

        .endm