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jeremybenn |
# frv testcase to generate fp_exception
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# mach: fr550
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.include "testutils.inc"
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float_constants
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start
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load_float_constants
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.global align
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align:
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; clear the packing bit if the insn at 'pack:'. We can't simply use
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; '.p' because the assembler will catch the error.
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set_gr_mem pack,gr10
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and_gr_immed 0x7fffffff,gr10
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set_mem_gr gr10,pack
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set_gr_addr pack,gr10
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flush_data_cache gr10
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; Make the the source register number odd at badst. We can't simply
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; code an odd register number because the assembler will catch the
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; error.
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set_gr_mem badst,gr10
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or_gr_immed 0x02000000,gr10
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set_mem_gr gr10,badst
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set_gr_addr badst,gr10
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flush_data_cache gr10
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; Make the the dest register number odd at badld. We can't simply
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; code an odd register number because the assembler will catch the
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; error.
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set_gr_mem badld,gr10
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or_gr_immed 0x02000000,gr10
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set_mem_gr gr10,badld
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set_gr_addr badld,gr10
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flush_data_cache gr10
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and_spr_immed -4081,tbr ; clear tbr.tt
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set_gr_spr tbr,gr17
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inc_gr_immed 0x070,gr17 ; address of exception handler
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set_bctrlr_0_0 gr17
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inc_gr_immed 0x060,gr17 ; address of exception handler
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set_bctrlr_0_0 gr17
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set_spr_immed 128,lcr
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set_spr_addr ok1,lr
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set_psr_et 1
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inc_gr_immed -4,sp ; for alignment
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set_gr_immed 0,gr20 ; PC increment
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set_gr_immed 0,gr15
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set_spr_addr ok3,lr
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set_gr_immed 4,gr20 ; PC increment
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badst: stdfi fr0,@(sp,0) ; misaligned reg -- slot I0
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test_gr_immed 1,gr15
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set_spr_addr ok4,lr
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set_gr_immed 8,gr20 ; PC increment
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nop.p
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badld: lddfi @(sp,0),fr8 ; misaligned reg -- slot I1
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test_gr_immed 2,gr15
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set_spr_addr ok5,lr
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set_gr_immed 20,gr20 ; PC increment
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fnegs.p fr9,fr9
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fnegs.p fr9,fr10
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fnegs.p fr9,fr11
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pack: fnegs fr10,fr12
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fnegs fr10,fr13 ; packing violation
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test_gr_immed 3,gr15
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set_spr_addr ok1,lr
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set_gr_immed 4,gr20 ; PC increment
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bad: .word 0x83e502c4 ; fmadds fr16,fr4,fr1 (unimplemented)
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test_gr_immed 4,gr15
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and_spr_immed 0xfbffffff,fsr0 ; disable div/0 fp_exception
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set_fr_iimmed 0x7f7f,0xffff,fr0
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set_fr_iimmed 0x0000,0x0000,fr1
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fdivs fr0,fr1,fr2 ; div/0 -- no exception
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test_spr_bits 0x100000,20,0x0,fsr0 ; fsr0.qne is never set
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test_spr_bits 0xfc00,10,0x4,fsr0 ; fsr0.aexc is still set
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test_spr_bits 0xe0000,17,0x0,fsr0 ; fsr0.ftt is clear
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set_spr_addr ok2,lr
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set_gr_immed 0,gr20 ; PC increment
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or_spr_immed 0x04000000,fsr0 ; enable div/0 fp_exception
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set_fr_iimmed 0xdead,0xbeef,fr2
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div0: fdivs fr0,fr1,fr2 ; fp_exception - div/0
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test_fr_iimmed 0xdeadbeef,fr2 ; fr2 not updated
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test_gr_immed 5,gr15
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and_spr_immed 0xfdffffff,fsr0 ; disable inexact fp_exception
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fsqrts fr32,fr2 ; inexact -- no exception
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test_spr_bits 0x100000,20,0x0,fsr0 ; fsr0.qne is never set
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test_spr_bits 0xfc00,10,0x6,fsr0 ; fsr0.aexc is set
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test_spr_bits 0xe0000,17,0x0,fsr0 ; fsr0.ftt is clear
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set_fr_fr fr2,fr3 ; sqrt 2
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set_fr_iimmed 0xdead,0xbeef,fr2
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set_spr_addr ok6,lr
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or_spr_immed 0x02000000,fsr0 ; enable inexact fp_exception
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inxt1: fsqrts fr32,fr2 ; fp_exception - inexact
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test_gr_immed 6,gr15 ; handler called
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test_fr_fr fr2,fr3 ; fr2 updated
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set_fr_iimmed 0xdead,0xbeef,fr2
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set_spr_addr ok7,lr
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inxt2: fsqrts fr32,fr2 ; fp_exception - inexact again
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test_gr_immed 7,gr15 ; handler called
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test_fr_fr fr2,fr3 ; fr2 updated
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pass
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; exception handler 1 -- illegal_instruction: bad insn
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ok1:
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test_spr_immed 1,esfr1 ; esr0 active
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test_spr_bits 0x3e,1,0x5,esr0 ; esr0.ec is set
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test_spr_bits 0x1,0,0x1,esr0 ; esr0.valid is set
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bra ret
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; exception handler 2 - fp_exception: divide by 0
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ok2:
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test_spr_bits 0x100000,20,0x0,fsr0 ; fsr0.qne is clear
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test_spr_bits 0xe0000,17,0x1,fsr0 ; fsr0.ftt is set
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test_spr_bits 0xfc00,10,0x4,fsr0 ; fsr0.aexc is still set
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test_spr_immed 4,esfr1 ; esr2 active
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test_spr_bits 0x3e,1,0xd,esr2 ; esr2.ec is set
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test_spr_bits 0x1,0,0x1,esr2 ; esr2.valid is set
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test_spr_addr div0,epcr2 ; epcr2 is set
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bra ret
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; exception handler 3 - illegal_instruction: register exception
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ok3:
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test_spr_immed 1,esfr1 ; esr0 active
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test_spr_bits 0x3e,1,0x5,esr0 ; esr0.ec is set
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test_spr_bits 0x1,0,0x1,esr0 ; esr0.valid is set
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bra ret
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; exception handler 4 - illegal_instruction: register exception
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ok4:
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test_spr_immed 1,esfr1 ; esr0 active
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test_spr_bits 0x3e,1,0x5,esr0 ; esr0.ec is set
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test_spr_bits 0x1,0,0x1,esr0 ; esr0.valid is set
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bra ret
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; exception handler 5 - illegal_instruction: sequence violation
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ok5:
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test_spr_immed 1,esfr1 ; esr0 active
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test_spr_bits 0x3e,1,0x5,esr0 ; esr0.ec is set
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test_spr_bits 0x1,0,0x1,esr0 ; esr0.valid is set
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bra ret
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; exception handler 6 - fp_exception: inexact
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ok6:
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test_spr_bits 0x100000,20,0x0,fsr0 ; fsr0.qne is clear
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test_spr_bits 0xe0000,17,0x1,fsr0 ; fsr0.ftt is set
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test_spr_bits 0xfc00,10,0x6,fsr0 ; fsr0.aexc is still set
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test_spr_immed 4,esfr1 ; esr2 active
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test_spr_bits 0x3e,1,0xd,esr2 ; esr2.ec is set
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test_spr_bits 0x1,0,0x1,esr2 ; esr2.valid is set
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test_spr_addr inxt1,epcr2 ; epcr2 is set
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bra ret
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; exception handler 7 - fp_exception: inexact again
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ok7:
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test_spr_bits 0x100000,20,0x0,fsr0 ; fsr0.qne is clear
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test_spr_bits 0xe0000,17,0x1,fsr0 ; fsr0.ftt is set
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test_spr_bits 0xfc00,10,0x6,fsr0 ; fsr0.aexc is still set
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test_spr_immed 4,esfr1 ; esr2 active
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test_spr_bits 0x3e,1,0xd,esr2 ; esr2.ec is set
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test_spr_bits 0x1,0,0x1,esr2 ; esr2.valid is set
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test_spr_addr inxt2,epcr2 ; epcr2 is set
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bra ret
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ret:
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inc_gr_immed 1,gr15
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movsg pcsr,gr60
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add gr60,gr20,gr60
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movgs gr60,pcsr
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rett 0
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fail
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