Subversion Repositories openrisc_me

# sh testcase for mulu.w $rm, $rn -*- Asm -*-
# mach: all
# as: -isa=shcompact
# ld: -m shelf32

        .include "compact/testutils.inc"

        start

        sts mach, r7

        .global mulsw
zero:
        mov #0, r0
        mov #1, r1
        mulu.w r0, r1

        # Check the result.
        sts macl, r1
        mov #0, r0
        cmp/eq r0, r1
        bf wrong

sxs:
        # Small * small.
        mov #1, r0
        mov #2, r1
        mulu.w r0, r1

        # Check the result.
        sts macl, r1
        mov #2, r0
        cmp/eq r0, r1
        bf wrong

sxl:
        # Small * large.
        mov #1, r1
        mov #0, r0
        or #255, r0
        shll8 r0
        mulu.w r1, r0

        # Check the result.
        sts macl, r1
        mov #0, r0
        or #255, r0
        shll8 r0
        cmp/eq r0, r1
        bf wrong

lxs:
        # Large * small.
        mov #0, r0
        or #255, r0
        shll8 r0
        mov #1, r1
        mulu.w r0, r1

        # Check the result.
        sts macl, r1
        mov #0, r0
        or #255, r0
        shll8 r0
        cmp/eq r0, r1
        bf wrong

lxl:
        # Large * large.
        mov #0, r0
        or #255, r0
        shll8 r0
        mov r0, r1
        mulu.w r0, r1

        # Check the result.
        sts macl, r1
        mov #0, r0
        or #254, r0
        shll8 r0
        or #1, r0
        shll16 r0
        cmp/eq r0, r1
        bf wrong

invariant:
        # Ensure MACH is invariant.
        sts mach, r8
        cmp/eq r7, r8
        bf wrong

okay:
        pass

wrong:
        fail