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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [testsuite/] [sim/] [v850/] [shr.cgs] - Rev 157

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# v850 shr
# mach: all

        .include "testutils.inc"

# CY is set to 1 if the bit shifted out last is 1, else 0
# OV is set to zero.
# Z is set if the result is 0, else 0

        noflags
        seti    4, r1
        seti    0x00000000, r2
        shr     r1, r2

        flags   z
        reg     r2, 0

        noflags
        seti    4, r1
        seti    0x00000001, r2
        shr     r1, r2

        flags   z
        reg     r2, 0

        noflags
        seti    4, r1
        seti    0x00000008, r2
        shr     r1, r2

        flags   c + z
        reg     r2, 0

        noflags
        seti    0x00000000, r2
        shr     4, r2

        flags   z
        reg     r2, 0

        noflags
        seti    0x00000001, r2
        shr     4, r2

        flags   z
        reg     r2, 0

        noflags
        seti    0x00000008, r2
        shr     4, r2

        flags   c + z
        reg     r2, 0

# However, if the number of shifts is 0, CY is 0.

        noflags
        seti    0, r1
        seti    0xffffffff, r2
        shr     r1, r2

        flags   s
        reg     r2, 0xffffffff

        noflags
        seti    0xffffffff, r2
        shr     0, r2

        flags   s
        reg     r2, 0xffffffff

# Zere is shifted into the MSB
# S is 1 if the result is negative, else 0

        noflags
        seti    1, r1
        seti    0x80000000, r2
        shr     r1, r2

        flags   0
        reg     r2, 0x40000000

        noflags
        seti    1, r1
        seti    0x40000000, r2
        shr     r1, r2

        flags   0
        reg     r2, 0x20000000

        pass

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