OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [testsuite/] [sim/] [v850/] [satadd.cgs] - Rev 450

Go to most recent revision | Compare with Previous | Blame | View Log

# v850 satadd
# mach: all

        .include "testutils.inc"

# If the result of the add is "negative", that means we went too
# positive.  The result should be the most positive number.

        noflags
        seti    0x70000000, r1
        seti    0x70000000, r2
        satadd  r1, r2

        flags   sat + nc + v + ns + nz
        reg     r2, 0x7fffffff

        noflags
        seti    0x7ffffffe, r1
        satadd  10, r1

        flags   sat + nc + v + ns + nz
        reg     r1, 0x7fffffff

# Similarly, if the result of the add is "positive", that means we
# went too negative.  The result should be the most negative number.

        noflags
        seti    0x90000000, r1
        seti    0x90000000, r2
        satadd  r1, r2

        flags   sat + c + v + s + nz
        reg     r2, 0x80000000

        noflags
        seti    0x80000001, r1
        satadd  -10, r1

        flags   sat + c + v + s + nz
        reg     r1, 0x80000000

# Check that the SAT flag remains set until reset

        seti    1, r1
        seti    2, r2
        satadd  r1,r2

        flags   sat + nc + nv + ns + nz
        reg     r2, 3

        noflags
        seti    1, r1
        seti    2, r2
        satadd  r1,r2

        flags   nsat + nc + nv + ns + nz
        reg     r2, 3

# Check that results exactly equal to min/max don't saturate

        noflags
        seti    0x70000000, r1
        seti    0x0fffffff, r2
        satadd  r1,r2

        flags   nsat + nc + nv + ns + nz
        reg     r2, 0x7fffffff


        noflags
        seti    0x90000000, r1
        seti    0xf0000000, r2
        satadd  r1,r2

        flags   nsat + c + nv + s + nz
        reg     r2, 0x80000000


        pass

Go to most recent revision | Compare with Previous | Blame | View Log

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.