lxdream.org :: lxdream/test/sh4/div0.s r364:d738f6883d4a

filename	test/sh4/div0.s
changeset	364:d738f6883d4a
author	nkeynes
date	Fri Feb 08 00:06:56 2008 +0000 (16 years ago)
permissions	-rw-r--r--
last change	Fix LDS/STS to FPUL/FPSCR to check the FPU disabled bit. Fixes the linux 2.4.0-test8 kernel boot (this wasn't exactly very well documented in the original manual)

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     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/sh4/div0.s	Fri Feb 08 00:06:56 2008 +0000
     1.3 @@ -0,0 +1,80 @@
     1.4 +.section .text
     1.5 +.include "sh4/inc.s"
     1.6 +!
     1.7 +! Test DIV0 operation
     1.8 +!
     1.9 +.global _test_div0
    1.10 +_test_div0:
    1.11 +	start_test
    1.12 +	mov.l r11, @-r15
    1.13 +	mov.l r10, @-r15
    1.14 +
    1.15 +test_div0u:
    1.16 +	add #1, r12
    1.17 +	stc sr, r2
    1.18 +	mov.l test_div0_sr_mask, r0
    1.19 +	or r0, r2
    1.20 +	ldc r2, sr
    1.21 +
    1.22 +	div0u
    1.23 +	stc sr, r3
    1.24 +	mov r3, r4
    1.25 +	and r0, r4
    1.26 +	tst r4, r4
    1.27 +	bf test_div0u_fail
    1.28 +	not r0, r0
    1.29 +	and r0, r3
    1.30 +	and r0, r2
    1.31 +	cmp/eq r2, r3
    1.32 +	bt test_div0s
    1.33 +test_div0u_fail:
    1.34 +	fail test_div0_str_k
    1.35 +	
    1.36 +test_div0s:	
    1.37 +	mova test_div0s_data, r0
    1.38 +	mov r0, r11
    1.39 +	mov #4, r10
    1.40 +
    1.41 +test_div0s_loop:
    1.42 +	add #1, r12
    1.43 +	mov.l @r11+, r1
    1.44 +	mov.l @r11+, r2
    1.45 +	mov.l @r11+, r3
    1.46 +	div0s r1,r2
    1.47 +	stc sr, r4
    1.48 +	mov.l test_div0_sr_mask, r0
    1.49 +	and r0,r4
    1.50 +	cmp/eq r3,r4
    1.51 +	bt test_div0s_ok
    1.52 +	fail test_div0_str_k
    1.53 +test_div0s_ok:	
    1.54 +	dt r10
    1.55 +	bf test_div0s_loop
    1.56 +	
    1.57 +test_div0_end:
    1.58 +	mov.l @r15+, r10
    1.59 +	mov.l @r15+, r11
    1.60 +	end_test test_div0_str_k
    1.61 +
    1.62 +test_div0s_data:
    1.63 +	.long 0x01234567
    1.64 +	.long 0x12345678
    1.65 +	.long 0x00000000
    1.66 +	.long 0xFFFF8912
    1.67 +	.long 0x7ABC1526
    1.68 +	.long 0x00000201
    1.69 +	.long 0x55443322
    1.70 +	.long 0x80000234
    1.71 +	.long 0x00000101
    1.72 +	.long 0xFFFFFFFF
    1.73 +	.long 0x9CD39495
    1.74 +	.long 0x00000300
    1.75 +	
    1.76 +test_div0_sr_mask:
    1.77 +	.long 0x00000301
    1.78 +	
    1.79 +test_div0_str_k:
    1.80 +	.long test_div0_str
    1.81 +test_div0_str:
    1.82 +	.string "DIV0"
    1.83 +	
    1.84 \ No newline at end of file