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50 lines
1.1 KiB
Plaintext
50 lines
1.1 KiB
Plaintext
# frv testcase for udivi $GRi,$s12,$GRk
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# mach: frv fr500 fr400
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.include "testutils.inc"
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start
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.global udivi
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udivi:
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; simple division 12 / 3
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set_gr_immed 0x0000000c,gr3
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udivi gr3,3,gr3
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test_gr_immed 0x00000004,gr3
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; random example
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set_gr_limmed 0xfedc,0xba98,gr3
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udivi gr3,0x7ff,gr3
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test_gr_limmed 0x001f,0xdf93,gr3
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; random example
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set_gr_limmed 0xffff,0xffff,gr3
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udivi gr3,-2048,gr3
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test_gr_immed 1,gr3
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; set up exception handler
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set_psr_et 1
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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 0x170,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_gr_immed 0,gr15
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; divide by zero
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set_spr_addr ok1,lr
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set_gr_addr e1,gr17
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e1: udivi gr1,0,gr2 ; divide by zero
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test_gr_immed 1,gr15
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pass
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ok1: ; exception handler for divide by zero
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test_spr_bits 0x18,3,0x1,isr ; isr.dtt is set
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test_spr_gr epcr0,gr17 ; return address set
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test_spr_bits 0x0001,0,0x1,esr0 ; esr0 is valid
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test_spr_bits 0x003e,1,0x13,esr0 ; esr0.ec is set
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inc_gr_immed 1,gr15
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rett 0
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fail
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