Subversion Repositories openrisc_me

        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