#include <stdlib.h>
#include <stdio.h>
+#include <inttypes.h>
#include <math.h>
#define xglue(x, y) x ## y
test_divl(0x12343, 0x12345678, 0x81234567);
}
+#define TEST_BSX(op, size, op0)\
+{\
+ int res, val, resz;\
+ val = op0;\
+ asm("xorl %1, %1 ; " #op " %" size "2, %" size "0 ; setz %b1" \
+ : "=r" (res), "=q" (resz)\
+ : "g" (val));\
+ printf("%-10s A=%08x R=%08x %d\n", #op, val, resz ? 0 : res, resz);\
+}
+
+void test_bsx(void)
+{
+ TEST_BSX(bsrw, "w", 0);
+ TEST_BSX(bsrw, "w", 0x12340128);
+ TEST_BSX(bsrl, "", 0);
+ TEST_BSX(bsrl, "", 0x00340128);
+ TEST_BSX(bsfw, "w", 0);
+ TEST_BSX(bsfw, "w", 0x12340128);
+ TEST_BSX(bsfl, "", 0);
+ TEST_BSX(bsfl, "", 0x00340128);
+}
+
+/**********************************************/
+
+void test_fops(double a, double b)
+{
+ printf("a=%f b=%f a+b=%f\n", a, b, a + b);
+ printf("a=%f b=%f a-b=%f\n", a, b, a - b);
+ printf("a=%f b=%f a*b=%f\n", a, b, a * b);
+ printf("a=%f b=%f a/b=%f\n", a, b, a / b);
+ printf("a=%f b=%f fmod(a, b)=%f\n", a, b, fmod(a, b));
+ printf("a=%f sqrt(a)=%f\n", a, sqrt(a));
+ printf("a=%f sin(a)=%f\n", a, sin(a));
+ printf("a=%f cos(a)=%f\n", a, cos(a));
+ printf("a=%f tan(a)=%f\n", a, tan(a));
+ printf("a=%f log(a)=%f\n", a, log(a));
+ printf("a=%f exp(a)=%f\n", a, exp(a));
+ printf("a=%f b=%f atan2(a, b)=%f\n", a, b, atan2(a, b));
+ /* just to test some op combining */
+ printf("a=%f asin(sin(a))=%f\n", a, asin(sin(a)));
+ printf("a=%f acos(cos(a))=%f\n", a, acos(cos(a)));
+ printf("a=%f atan(tan(a))=%f\n", a, atan(tan(a)));
+
+}
+
+void test_fcmp(double a, double b)
+{
+ printf("(%f<%f)=%d\n",
+ a, b, a < b);
+ printf("(%f<=%f)=%d\n",
+ a, b, a <= b);
+ printf("(%f==%f)=%d\n",
+ a, b, a == b);
+ printf("(%f>%f)=%d\n",
+ a, b, a > b);
+ printf("(%f<=%f)=%d\n",
+ a, b, a >= b);
+}
+
+void test_fcvt(double a)
+{
+ float fa;
+ long double la;
+
+ fa = a;
+ la = a;
+ printf("(float)%f = %f\n", a, fa);
+ printf("(long double)%f = %Lf\n", a, la);
+ printf("a=%016Lx\n", *(long long *)&a);
+ printf("la=%016Lx %04x\n", *(long long *)&la,
+ *(unsigned short *)((char *)(&la) + 8));
+ printf("a=%f floor(a)=%f\n", a, floor(a));
+ printf("a=%f ceil(a)=%f\n", a, ceil(a));
+ printf("a=%f rint(a)=%f\n", a, rint(a));
+}
+
+#define TEST(N) \
+ asm("fld" #N : "=t" (a)); \
+ printf("fld" #N "= %f\n", a);
+
+void test_fconst(void)
+{
+ double a;
+ TEST(1);
+ TEST(l2t);
+ TEST(l2e);
+ TEST(pi);
+ TEST(lg2);
+ TEST(ln2);
+ TEST(z);
+}
+
+void test_fbcd(double a)
+{
+ unsigned short bcd[5];
+ double b;
+
+ asm("fbstp %0" : "=m" (bcd[0]) : "t" (a) : "st");
+ asm("fbld %1" : "=t" (b) : "m" (bcd[0]));
+ printf("a=%f bcd=%04x%04x%04x%04x%04x b=%f\n",
+ a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b);
+}
+
+void test_floats(void)
+{
+ test_fops(2, 3);
+ test_fops(1.4, -5);
+ test_fcmp(2, -1);
+ test_fcmp(2, 2);
+ test_fcmp(2, 3);
+ test_fcvt(1.0/7.0);
+ test_fcvt(-1.0/9.0);
+ test_fcvt(1e30);
+ test_fconst();
+ test_fbcd(1234567890123456);
+ test_fbcd(-123451234567890);
+}
+
+/**********************************************/
+
+#define TEST_BCD(op, op0, cc_in, cc_mask)\
+{\
+ int res, flags;\
+ res = op0;\
+ flags = cc_in;\
+ asm ("push %3\n\t"\
+ "popf\n\t"\
+ #op "\n\t"\
+ "pushf\n\t"\
+ "popl %1\n\t"\
+ : "=a" (res), "=g" (flags)\
+ : "0" (res), "1" (flags));\
+ printf("%-10s A=%08x R=%08x CCIN=%04x CC=%04x\n",\
+ #op, op0, res, cc_in, flags & cc_mask);\
+}
+
+void test_bcd(void)
+{
+ TEST_BCD(daa, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(daa, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+
+ TEST_BCD(das, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+ TEST_BCD(das, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
+
+ TEST_BCD(aaa, 0x12340205, CC_A, (CC_C | CC_A));
+ TEST_BCD(aaa, 0x12340306, CC_A, (CC_C | CC_A));
+ TEST_BCD(aaa, 0x1234040a, CC_A, (CC_C | CC_A));
+ TEST_BCD(aaa, 0x123405fa, CC_A, (CC_C | CC_A));
+ TEST_BCD(aaa, 0x12340205, 0, (CC_C | CC_A));
+ TEST_BCD(aaa, 0x12340306, 0, (CC_C | CC_A));
+ TEST_BCD(aaa, 0x1234040a, 0, (CC_C | CC_A));
+ TEST_BCD(aaa, 0x123405fa, 0, (CC_C | CC_A));
+
+ TEST_BCD(aas, 0x12340205, CC_A, (CC_C | CC_A));
+ TEST_BCD(aas, 0x12340306, CC_A, (CC_C | CC_A));
+ TEST_BCD(aas, 0x1234040a, CC_A, (CC_C | CC_A));
+ TEST_BCD(aas, 0x123405fa, CC_A, (CC_C | CC_A));
+ TEST_BCD(aas, 0x12340205, 0, (CC_C | CC_A));
+ TEST_BCD(aas, 0x12340306, 0, (CC_C | CC_A));
+ TEST_BCD(aas, 0x1234040a, 0, (CC_C | CC_A));
+ TEST_BCD(aas, 0x123405fa, 0, (CC_C | CC_A));
+
+ TEST_BCD(aam, 0x12340547, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
+ TEST_BCD(aad, 0x12340407, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
+}
+
+/**********************************************/
+/* segmentation tests */
+
+#include <asm/ldt.h>
+#include <linux/unistd.h>
+
+_syscall3(int, modify_ldt, int, func, void *, ptr, unsigned long, bytecount)
+
+uint8_t seg_data1[4096];
+uint8_t seg_data2[4096];
+
+#define MK_SEL(n) (((n) << 3) | 4)
+
+/* NOTE: we use Linux modify_ldt syscall */
+void test_segs(void)
+{
+ struct modify_ldt_ldt_s ldt;
+ long long ldt_table[3];
+ int i, res, res2;
+ char tmp;
+
+ ldt.entry_number = 1;
+ ldt.base_addr = (unsigned long)&seg_data1;
+ ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
+ ldt.seg_32bit = 1;
+ ldt.contents = MODIFY_LDT_CONTENTS_DATA;
+ ldt.read_exec_only = 0;
+ ldt.limit_in_pages = 1;
+ ldt.seg_not_present = 0;
+ ldt.useable = 1;
+ modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
+
+ ldt.entry_number = 2;
+ ldt.base_addr = (unsigned long)&seg_data2;
+ ldt.limit = (sizeof(seg_data2) + 0xfff) >> 12;
+ ldt.seg_32bit = 1;
+ ldt.contents = MODIFY_LDT_CONTENTS_DATA;
+ ldt.read_exec_only = 0;
+ ldt.limit_in_pages = 1;
+ ldt.seg_not_present = 0;
+ ldt.useable = 1;
+ modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
+
+ modify_ldt(0, &ldt_table, sizeof(ldt_table)); /* read ldt entries */
+ for(i=0;i<3;i++)
+ printf("%d: %016Lx\n", i, ldt_table[i]);
+
+ /* do some tests with fs or gs */
+ asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
+ asm volatile ("movl %0, %%gs" : : "r" (MK_SEL(2)));
+
+ seg_data1[1] = 0xaa;
+ seg_data2[1] = 0x55;
+
+ asm volatile ("fs movzbl 0x1, %0" : "=r" (res));
+ printf("FS[1] = %02x\n", res);
+
+ asm volatile ("gs movzbl 0x1, %0" : "=r" (res));
+ printf("GS[1] = %02x\n", res);
+
+ /* tests with ds/ss (implicit segment case) */
+ tmp = 0xa5;
+ asm volatile ("pushl %%ebp\n\t"
+ "pushl %%ds\n\t"
+ "movl %2, %%ds\n\t"
+ "movl %3, %%ebp\n\t"
+ "movzbl 0x1, %0\n\t"
+ "movzbl (%%ebp), %1\n\t"
+ "popl %%ds\n\t"
+ "popl %%ebp\n\t"
+ : "=r" (res), "=r" (res2)
+ : "r" (MK_SEL(1)), "r" (&tmp));
+ printf("DS[1] = %02x\n", res);
+ printf("SS[tmp] = %02x\n", res2);
+}
static void *call_end __init_call = NULL;
func = *ptr++;
func();
}
+ test_bsx();
test_mul();
test_jcc();
+ test_floats();
+ test_bcd();
test_lea();
+ test_segs();
return 0;
}
projects / qemu.git / blobdiff