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# frv testcase for sdivi $GRi,$s12,$GRk
# mach: all
 
        .include "../testutils.inc"
 
        start
 
        .global sdivi
sdivi:
        ; simple division 12 / 3
        set_gr_immed    12,gr1
        sdivi           gr1,3,gr2
        test_gr_immed   4,gr2
 
        ; Random example
        set_gr_limmed   0xfedc,0xba98,gr1
        sdivi           gr1,0x7ff,gr2
        test_gr_limmed  0xffff,0xdb93,gr2
 
        ; Random negative example
        set_gr_limmed   0xfedc,0xba98,gr1
        sdivi           gr1,-2048,gr2
        test_gr_immed   0x2468,gr2
 
        ; Special case from the Arch Spec Vol 2
        or_spr_immed    0x20,isr        ; turn on isr.edem
        set_gr_limmed   0x8000,0x0000,gr1
        sdivi           gr1,-1,gr2
        test_gr_limmed  0x7fff,0xffff,gr2
        test_spr_bits   0x4,2,1,isr     ; isr.aexc is set
 
        and_spr_immed   -33,isr         ; turn off isr.edem
        ; set up exception handler
        set_psr_et      1
        and_spr_immed   -4081,tbr       ; clear tbr.tt
        set_gr_spr      tbr,gr17
        inc_gr_immed    0x170,gr17      ; address of exception handler
        set_bctrlr_0_0  gr17
        set_spr_immed   128,lcr
        set_gr_immed    0,gr15
 
        ; divide will cause overflow
        set_spr_addr    ok1,lr
        set_gr_limmed   0x8000,0x0000,gr1
e1:     sdivi           gr1,-1,gr2
        test_gr_immed   1,gr15
        test_gr_limmed  0x8000,0x0000,gr2
 
        ; divide by zero
        set_spr_addr    ok2,lr
e2:     sdivi           gr1,0,gr2       ; divide by zero
        test_gr_immed   2,gr15
 
        pass
 
ok1:    ; exception handler for overflow
        test_spr_bits   0x18,3,0x2,isr          ; isr.dtt is set
        test_spr_bits   0x0001,0,0x1,esr0       ; esr0 is valid
        test_spr_bits   0x003e,1,0x13,esr0      ; esr0.ec is set
        inc_gr_immed    1,gr15
        rett            0
        fail
 
ok2:    ; exception handler for divide by zero
        test_spr_bits   0x18,3,0x3,isr          ; isr.dtt is set
        test_spr_bits   0x0001,0,0x1,esr0       ; esr0 is valid
        test_spr_bits   0x003e,1,0x13,esr0      ; esr0.ec is set
        inc_gr_immed    1,gr15
        rett            0
        fail

Line No.	Rev	Author	Line
1	24	jeremybenn	`# frv testcase for sdivi $GRi,$s12,$GRk`
2			`# mach: all`
3
4			`.include "../testutils.inc"`
5
6			`start`
7
8			`.global sdivi`
9			`sdivi:`
10			`; simple division 12 / 3`
11			`set_gr_immed 12,gr1`
12			`sdivi gr1,3,gr2`
13			`test_gr_immed 4,gr2`
14
15			`; Random example`
16			`set_gr_limmed 0xfedc,0xba98,gr1`
17			`sdivi gr1,0x7ff,gr2`
18			`test_gr_limmed 0xffff,0xdb93,gr2`
19
20			`; Random negative example`
21			`set_gr_limmed 0xfedc,0xba98,gr1`
22			`sdivi gr1,-2048,gr2`
23			`test_gr_immed 0x2468,gr2`
24
25			`; Special case from the Arch Spec Vol 2`
26			`or_spr_immed 0x20,isr ; turn on isr.edem`
27			`set_gr_limmed 0x8000,0x0000,gr1`
28			`sdivi gr1,-1,gr2`
29			`test_gr_limmed 0x7fff,0xffff,gr2`
30			`test_spr_bits 0x4,2,1,isr ; isr.aexc is set`
31
32			`and_spr_immed -33,isr ; turn off isr.edem`
33			`; set up exception handler`
34			`set_psr_et 1`
35			`and_spr_immed -4081,tbr ; clear tbr.tt`
36			`set_gr_spr tbr,gr17`
37			`inc_gr_immed 0x170,gr17 ; address of exception handler`
38			`set_bctrlr_0_0 gr17`
39			`set_spr_immed 128,lcr`
40			`set_gr_immed 0,gr15`
41
42			`; divide will cause overflow`
43			`set_spr_addr ok1,lr`
44			`set_gr_limmed 0x8000,0x0000,gr1`
45			`e1: sdivi gr1,-1,gr2`
46			`test_gr_immed 1,gr15`
47			`test_gr_limmed 0x8000,0x0000,gr2`
48
49			`; divide by zero`
50			`set_spr_addr ok2,lr`
51			`e2: sdivi gr1,0,gr2 ; divide by zero`
52			`test_gr_immed 2,gr15`
53
54			`pass`
55
56			`ok1: ; exception handler for overflow`
57			`test_spr_bits 0x18,3,0x2,isr ; isr.dtt is set`
58			`test_spr_bits 0x0001,0,0x1,esr0 ; esr0 is valid`
59			`test_spr_bits 0x003e,1,0x13,esr0 ; esr0.ec is set`
60			`inc_gr_immed 1,gr15`
61			`rett 0`
62			`fail`
63
64			`ok2: ; exception handler for divide by zero`
65			`test_spr_bits 0x18,3,0x3,isr ; isr.dtt is set`
66			`test_spr_bits 0x0001,0,0x1,esr0 ; esr0 is valid`
67			`test_spr_bits 0x003e,1,0x13,esr0 ; esr0.ec is set`
68			`inc_gr_immed 1,gr15`
69			`rett 0`
70			`fail`

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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [sim/] [testsuite/] [sim/] [frv/] [fr400/] [sdivi.cgs] - Blame information for rev 816