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more FPU context save tests 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@651 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-02-25 23:34:07 +00:00
parent bf08806145
commit 6b2b6112f8
1 changed files with 19 additions and 21 deletions
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40
tests/test-i386.c
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@ -612,30 +612,21 @@ void test_fbcd(double a)
a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b);
}
#define TEST_ENV(env, prefix)\
#define TEST_ENV(env, save, restore)\
{\
memset((env), 0xaa, sizeof(*(env)));\
asm("fld1\n"\
prefix "fnstenv %1\n"\
prefix "fldenv %1\n"\
: "=t" (res) : "m" (*(env)));\
printf("res=%f\n", res);\
for(i=0;i<5;i++)\
asm volatile ("fldl %0" : : "m" (dtab[i]));\
asm(save " %0\n" : : "m" (*(env)));\
asm(restore " %0\n": : "m" (*(env)));\
for(i=0;i<5;i++)\
asm volatile ("fstpl %0" : "=m" (rtab[i]));\
for(i=0;i<5;i++)\
printf("res[%d]=%f\n", i, rtab[i]);\
printf("fpuc=%04x fpus=%04x fptag=%04x\n",\
(env)->fpuc,\
(env)->fpus & 0xff00,\
(env)->fptag);\
memset((env), 0xaa, sizeof(*(env)));\
asm("fld1\n"\
prefix "fnsave %1\n"\
prefix "frstor %1\n"\
: "=t" (res) : "m" (*(env)));\
printf("res=%f\n", res);\
printf("fpuc=%04x fpus=%04x fptag=%04x\n",\
(env)->fpuc,\
(env)->fpus & 0xff00,\
(env)->fptag);\
printf("ST(0) = %Lf\n",\
(env)->fpregs[0]);\
}
void test_fenv(void)
@ -657,10 +648,17 @@ void test_fenv(void)
uint16_t ignored[4];
long double fpregs[8];
} float_env16;
double res;
double dtab[8];
double rtab[8];
int i;
TEST_ENV(&float_env16, "data16 ");
TEST_ENV(&float_env32, "");
for(i=0;i<8;i++)
dtab[i] = i + 1;
TEST_ENV(&float_env16, "data16 fnstenv", "data16 fldenv");
TEST_ENV(&float_env16, "data16 fnsave", "data16 frstor");
TEST_ENV(&float_env32, "fnstenv", "fldenv");
TEST_ENV(&float_env32, "fnsave", "frstor");
}