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lxdream.org :: lxdream/test/sh4/undef.s
lxdream 0.9.1
released Jun 29
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filename test/sh4/undef.s
changeset 523:f33381d87c2a
prev358:65043a8f5785
author nkeynes
date Sat Nov 17 01:17:01 2007 +0000 (12 years ago)
permissions -rw-r--r--
last change Skip over the "undefined" instructions that actually pass on the SH4 - leaving
in until we can determine if they actually do anything, or if they're
effectively NOPs
file annotate diff log raw
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.section .text
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.include "sh4/inc.s"
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!
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! Test for undefined/unknown instructions. The only "official"
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! undefined instruction is 0xFFFD, but this tests everything
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! that doesn't match a known instruction pattern. Undefined
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! instructions are expected to raise general-illegal when not
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! in a delay slot, and slot-illegal when in a delay slot.
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.global _test_undefined
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_test_undefined:	
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	start_test
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test_undef_1:	! First the official one
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	add #1, r12
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	expect_exc 0x00000180
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test_undef_1_pc:
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	.word 0xFFFD
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	assert_exc_caught test_undef_str_k test_undef_1_pc
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test_undef_1a:	! 0xFFFD with FPU disabled - should still be an 0x180
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	add #1, r12
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	stc sr, r0
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	xor r1, r1
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	add #32, r1
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	shll2 r1
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	shll8 r1
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	or r0, r1
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	ldc r1, sr
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	expect_exc 0x00000180
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test_undef_1a_pc:
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	.word 0xFFFD
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	assert_exc_caught test_undef_str_k test_undef_1a_pc
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	stc sr, r0
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	xor r1, r1
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	add #32, r1
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	shll2 r1
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	shll8 r1
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	not r1, r1
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	and r0, r1
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	ldc r1, sr
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	bra test_undef_end	
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	nop
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! The following don't actually raise an exception, so skip over for the
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! moment.
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! Gaps in the STC range (0x0nn2)
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test_undef_2:	! 0x52
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	add #1, r12
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	expect_exc 0x00000180
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test_undef_2_pc:
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	.word 0x0052
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	assert_exc_caught test_undef_str_k test_undef_2_pc
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test_undef_3:	! 0x62
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	add #1, r12
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	expect_exc 0x00000180
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test_undef_3_pc:
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	.word 0x0062
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	assert_exc_caught test_undef_str_k test_undef_3_pc
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test_undef_4:	! 0x72
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	add #1, r12
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	expect_exc 0x00000180
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test_undef_4_pc:
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	.word 0x0072
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	assert_exc_caught test_undef_str_k test_undef_4_pc
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! Test undefined FP instructions w/ and w/o FP disable
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test_undef_fpu_1:
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	add #1, r12
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	expect_exc 0x00000180
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test_undef_fpu_1_pc:
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	.word 0xF0CD
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	assert_exc_caught test_undef_str_k test_undef_fpu_1_pc
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test_undef_end:
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	end_test test_undef_str_k
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test_undef_str_k:
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	.long test_undef_str
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test_undef_str:
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	.string "UNDEFINED-INSTRUCTION"
.