Subversion Repositories openrisc

# frv testcase for nsdiv $GRi,$GRj,$GRk
# mach: fr500 fr550 frv

        .include "testutils.inc"

        start

        .global nsdiv
nsdiv:
        set_spr_immed   0,gner0
        set_spr_immed   0,gner1

        ; simple division 12 / 3
        set_gr_immed    3,gr3
        set_gr_immed    12,gr1
        nsdiv           gr1,gr3,gr2
        test_gr_immed   4,gr2
        test_spr_immed  0,gner0
        test_spr_immed  0,gner1

        ; Random example
        set_gr_limmed   0x0123,0x4567,gr3
        set_gr_limmed   0xfedc,0xba98,gr1
        nsdiv           gr1,gr3,gr2
        test_gr_immed   -1,gr2
        test_spr_immed  0,gner0
        test_spr_immed  0,gner1

        ; Special case from the Arch Spec Vol 2
        or_spr_immed    0x20,isr        ; turn on isr.edem
        set_gr_immed    -1,gr3
        set_gr_limmed   0x8000,0x0000,gr1
        set_spr_immed   4,gner1         ; turn on NE bit for gr2
        nsdiv           gr1,gr3,gr2     ; overflow is masked
        test_gr_limmed  0x7fff,0xffff,gr2
        test_spr_bits   0x4,2,1,isr     ; isr.aexc is set
        test_spr_immed  0,gner0
        test_spr_immed  0,gner1

        nsdiv           gr1,gr0,gr32    ; divide by zero
        test_spr_immed  1,gner0
        test_spr_immed  0,gner1

        and_spr_immed   -33,isr         ; turn off isr.edem
        set_gr_immed    -1,gr3
        set_gr_limmed   0x8000,0x0000,gr1
        nsdiv           gr1,gr3,gr2
        test_gr_limmed  0x8000,0x0000,gr2
        test_spr_immed  1,gner0
        test_spr_immed  4,gner1

        nsdiv           gr1,gr0,gr10    ; divide by zero
        test_spr_immed  1,gner0
        test_spr_immed  0x00000404,gner1

        ; simple division 12 / 3 -- should turn off ne flag
        set_gr_immed    3,gr3
        set_gr_immed    12,gr1
        nsdiv           gr1,gr3,gr2
        test_gr_immed   4,gr2
        test_spr_immed  1,gner0
        test_spr_immed  0x00000400,gner1

        pass