Subversion Repositories openrisc_2011-10-31

        comment "subroutine declare"
        .purgem gdbasm_declare
        .macro gdbasm_declare name
        .align  2
        .ent    \name
        .type   \name,@function
\name:
        .endm

        comment "subroutine prologue"
        .macro gdbasm_enter
        .frame  $fp, 32, $31
        .mask   0xd0000000,-4
        .set    noreorder
        .cpload $25
        .set    reorder
        subu    $sp, $sp, 32
        .cprestore 16
        sw      $31, 28($sp)
        sw      $fp, 24($sp)
        sw      $28, 20($sp)
        move    $fp, $sp
        .endm

        comment "subroutine epilogue"
        .macro gdbasm_leave
        lw      $31, 28($sp)
        lw      $fp, 24($sp)
        .set    noreorder
        .set    nomacro
        j       $31
        addu    $sp, $sp, 32
        .set    macro
        .set    reorder
        .endm

        comment "subroutine end"
        .purgem gdbasm_end
        .macro gdbasm_end name
        .end    \name
        .endm

        .macro gdbasm_call subr
        la      $25, \subr
        jal     $31, $25
        .endm

        .macro gdbasm_several_nops
        nop
        nop
        nop
        nop
        .endm

        comment "exit (0)"
        .macro gdbasm_exit0
        comment "Don't know how to exit, but this will certainly halt..."
        lw      $2, 0($0)
        .endm

        comment "crt0 startup"
        .macro gdbasm_startup
        move    $fp, $sp
        .endm