Subversion Repositories openrisc_me

        comment "subroutine prologue"
        .macro gdbasm_enter
        addiu %29, %29, 0xfffc
        sw %31,0(%29)
        .endm

        comment "subroutine epilogue"
        .macro gdbasm_leave
        lw %31,0(%29)
        addiu %29, %29, 4
        jr %31
        nop
        .endm

        .macro gdbasm_call subr
        jal \subr
        nop
        .endm

        .macro gdbasm_several_nops
        nop
        nop
        nop
        nop
        .endm

        comment "exit (0)"
        .macro gdbasm_exit0
        ori  %4, %0, 1  # SYS_exit
        ori  %5, %0, 0  # normal exit code
        ori  %6, %0, 0
        ori  %7, %0, 0
        syscall
        .endm

        comment "crt0 startup"
        .macro gdbasm_startup
        andi %0, %0, 0
        addiu %29, %0, 0xffc
        .endm