gwj / at91sam9263 · Commits

Commit 03bfca946a9fdf7a437f28183be36b4bf89b51e9

Authored by bellard
1 parent ed2dcdf6

more FPU tests 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@202 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 1 changed file with 64 additions and 1 deletions
tests/test-i386.c
  View file @03bfca9
... ... @@ -9,7 +9,8 @@
9 9 #include <sys/mman.h>
10 10 #include <asm/vm86.h>
11 11  
12   -#define TEST_CMOV 0
  12 +#define TEST_CMOV 0
  13 +#define TEST_FCOMI 0
13 14  
14 15 #define xglue(x, y) x ## y
15 16 #define glue(x, y) xglue(x, y)
... ... @@ -510,6 +511,16 @@ void test_fcmp(double a, double b)
510 511 a, b, a > b);
511 512 printf("(%f<=%f)=%d\n",
512 513 a, b, a >= b);
  514 + if (TEST_FCOMI) {
  515 + unsigned int eflags;
  516 + /* test f(u)comi instruction */
  517 + asm("fcomi %2, %1\n"
  518 + "pushf\n"
  519 + "pop %0\n"
  520 + : "=r" (eflags)
  521 + : "t" (a), "u" (b));
  522 + printf("fcomi(%f %f)=%08x\n", a, b, eflags & (CC_Z | CC_P | CC_C));
  523 + }
513 524 }
514 525  
515 526 void test_fcvt(double a)
... ... @@ -556,6 +567,57 @@ void test_fbcd(double a)
556 567 a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b);
557 568 }
558 569  
  570 +#define TEST_ENV(env, prefix)\
  571 +{\
  572 + memset((env), 0xaa, sizeof(*(env)));\
  573 + asm("fld1\n"\
  574 + prefix "fnstenv %1\n"\
  575 + prefix "fldenv %1\n"\
  576 + : "=t" (res) : "m" (*(env)) : "st");\
  577 + printf("res=%f\n", res);\
  578 + printf("fpuc=%04x fpus=%04x fptag=%04x\n",\
  579 + (env)->fpuc,\
  580 + (env)->fpus & 0xff00,\
  581 + (env)->fptag);\
  582 + memset((env), 0xaa, sizeof(*(env)));\
  583 + asm("fld1\n"\
  584 + prefix "fnsave %1\n"\
  585 + prefix "frstor %1\n"\
  586 + : "=t" (res) : "m" (*(env)) : "st");\
  587 + printf("res=%f\n", res);\
  588 + printf("fpuc=%04x fpus=%04x fptag=%04x\n",\
  589 + (env)->fpuc,\
  590 + (env)->fpus & 0xff00,\
  591 + (env)->fptag);\
  592 + printf("ST(0) = %Lf\n",\
  593 + (env)->fpregs[0]);\
  594 +}
  595 +
  596 +void test_fenv(void)
  597 +{
  598 + struct __attribute__((packed)) {
  599 + uint16_t fpuc;
  600 + uint16_t dummy1;
  601 + uint16_t fpus;
  602 + uint16_t dummy2;
  603 + uint16_t fptag;
  604 + uint16_t dummy3;
  605 + uint32_t ignored[4];
  606 + long double fpregs[8];
  607 + } float_env32;
  608 + struct __attribute__((packed)) {
  609 + uint16_t fpuc;
  610 + uint16_t fpus;
  611 + uint16_t fptag;
  612 + uint16_t ignored[4];
  613 + long double fpregs[8];
  614 + } float_env16;
  615 + double res;
  616 +
  617 + TEST_ENV(&float_env16, "data16 ");
  618 + TEST_ENV(&float_env32, "");
  619 +}
  620 +
559 621 void test_floats(void)
560 622 {
561 623 test_fops(2, 3);
... ... @@ -569,6 +631,7 @@ void test_floats(void)
569 631 test_fconst();
570 632 test_fbcd(1234567890123456);
571 633 test_fbcd(-123451234567890);
  634 + test_fenv();
572 635 }
573 636  
574 637 /**********************************************/
... ...