xref: /openbmc/qemu/tests/tcg/cris/libc/check_addo.c (revision 6b8f9c6e)
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <stdint.h>
4 #include "sys.h"
5 #include "crisutils.h"
6 
7 /* this would be better to do in asm, it's an orgy in GCC inline asm now.  */
8 
9 #define cris_addo_b(o, v) \
10 	asm volatile ("addo.b\t[%0], %1, $acr\n" : : "r" (o), "r" (v) : "acr");
11 #define cris_addo_w(o, v) \
12 	asm volatile ("addo.w\t[%0], %1, $acr\n" : : "r" (o), "r" (v) : "acr");
13 #define cris_addo_d(o, v) \
14 	asm volatile ("addo.d\t[%0], %1, $acr\n" : : "r" (o), "r" (v) : "acr");
15 #define cris_addo_pi_b(o, v) \
16 	asm volatile ("addo.b\t[%0+], %1, $acr\n" \
17                          : "+b" (o): "r" (v) : "acr");
18 #define cris_addo_pi_w(o, v) \
19 	asm volatile ("addo.w\t[%0+], %1, $acr\n" \
20                          : "+b" (o): "r" (v) : "acr");
21 #define cris_addo_pi_d(o, v) \
22 	asm volatile ("addo.d\t[%0+], %1, $acr\n" \
23                          : "+b" (o): "r" (v) : "acr");
24 
25 struct {
26 	uint32_t v1;
27 	uint16_t v2;
28 	uint32_t v3;
29 	uint8_t v4;
30 	uint8_t v5;
31 	uint16_t v6;
32 	uint32_t v7;
33 } y = {
34 	32769,
35 	-1,
36 	5,
37 	3, -4,
38 	2,
39 	-76789887
40 };
41 
42 static int x[3] = {0x55aa77ff, 0xccff2244, 0x88ccee19};
43 
44 int main(void)
45 {
46 	int *r;
47 	unsigned char *t, *p;
48 
49 	/* Note, this test-case will trig an unaligned access, partly
50 	   to x[0] and to [x1].  */
51 	t = (unsigned char *)x;
52 	t -= 32768;
53 	p = (unsigned char *) &y.v1;
54 	mb(); /* don't reorder anything beyond here.  */
55 	cris_tst_cc_init();
56 	asm volatile ("setf\tzvnc\n");
57 	cris_addo_pi_d(p, t);
58 	cris_tst_cc(1, 1, 1, 1);
59 	asm volatile ("move.d\t$acr, %0\n" : "=r" (r));
60 	if (*r != 0x4455aa77)
61 		err();
62 
63 
64 	t += 32770;
65 	mb(); /* don't reorder anything beyond here.  */
66 	cris_tst_cc_init();
67 	asm volatile ("setf\tzvnc\n");
68 	cris_addo_pi_w(p, t);
69 	cris_tst_cc(1, 1, 1, 1);
70 	asm volatile ("move.d\t$acr, %0\n" : "=r" (r));
71 	if (*r != 0x4455aa77)
72 		err();
73 
74 	mb(); /* don't reorder anything beyond here.  */
75 	cris_tst_cc_init();
76 	asm volatile ("setf\tzvnc\n");
77 	cris_addo_d(p, r);
78 	cris_tst_cc(1, 1, 1, 1);
79 	p += 4;
80 	asm volatile ("move.d\t$acr, %0\n" : "=r" (r));
81 	if (*r != 0xee19ccff)
82 		err();
83 
84 	mb(); /* don't reorder anything beyond here.  */
85 	cris_tst_cc_init();
86 	asm volatile ("setf\tzvnc\n");
87 	cris_addo_pi_b(p, t);
88 	cris_tst_cc(0, 0, 0, 0);
89 	asm volatile ("move.d\t$acr, %0\n" : "=r" (r));
90 	if (*(uint16_t*)r != 0xff22)
91 		err();
92 
93 	mb(); /* don't reorder anything beyond here.  */
94 	cris_tst_cc_init();
95 	asm volatile ("setf\tzvnc\n");
96 	cris_addo_b(p, r);
97 	cris_tst_cc(1, 1, 1, 1);
98 	p += 1;
99 	asm volatile ("move.d\t$acr, %0\n" : "=r" (r));
100 	if (*r != 0x4455aa77)
101 		err();
102 
103 	mb(); /* don't reorder anything beyond here.  */
104 	cris_tst_cc_init();
105 	asm volatile ("setf\tzvnc\n");
106 	cris_addo_w(p, r);
107 	cris_tst_cc(1, 1, 1, 1);
108 	p += 2;
109 	asm volatile ("move.d\t$acr, %0\n" : "=r" (r));
110 	if (*r != 0xff224455)
111 		err();
112 
113 	mb(); /* don't reorder anything beyond here.  */
114 	cris_tst_cc_init();
115 	asm volatile ("setf\tzvnc\n");
116 	cris_addo_pi_d(p, t);
117 	cris_tst_cc(0, 0, 0, 0);
118 	asm volatile ("move.d\t$acr, %0\n" : "=r" (r));
119 	r = (void*)(((char *)r) + 76789885);
120 	if (*r != 0x55aa77ff)
121 		err();
122 
123 	pass();
124 	return 0;
125 }
126