Improve these test programs.
git-svn-id: svn://svn.valgrind.org/vex/trunk@693 8f6e269a-dfd6-0310-a8e1-e2731360e62c
diff --git a/test/fsave.c b/test/fsave.c
index 2e0ba15..293711d 100644
--- a/test/fsave.c
+++ b/test/fsave.c
@@ -4,19 +4,65 @@
void do_fsave ( void* p )
{
- asm("fldpi ; fld1; fldln2 ; movl 8(%esp), %eax ; fsave (%eax)");
+ asm __volatile__("fninit");
+ asm __volatile__("fldpi");
+ asm __volatile__("fld1");
+ asm __volatile__("fldln2");
+ asm __volatile__("fsave (%0)" : : "r" (p) : "memory" );
}
-int main ( void )
+int isFPLsbs ( int i )
+{
+ int q;
+ q = 0; if (i == q || i == q+1) return 1;
+ q = 10; if (i == q || i == q+1) return 1;
+ q = 20; if (i == q || i == q+1) return 1;
+ q = 30; if (i == q || i == q+1) return 1;
+ q = 40; if (i == q || i == q+1) return 1;
+ q = 50; if (i == q || i == q+1) return 1;
+ q = 60; if (i == q || i == q+1) return 1;
+ q = 70; if (i == q || i == q+1) return 1;
+ return 0;
+}
+
+void show_fpustate ( unsigned char* buf, int hide64to80 )
{
int i;
- unsigned int* buf = malloc(27*sizeof(int));
- do_fsave(buf);
- for (i = 0; i < 27; i++) {
- printf("%08x ", buf[i]);
- if (i > 0 && ((i % 6) == 5))
+ printf(" 0 ");
+ for (i = 0; i < 14; i++)
+ printf("%02x ", buf[i]);
+ printf("\n");
+
+ printf(" 14 ");
+ for (i = 14; i < 28; i++)
+ printf("%02x ", buf[i]);
+ printf("\n");
+
+ for (i = 0; i < 80; i++) {
+ if ((i % 10) == 0)
+ printf("%3d ", i+28);
+ if (hide64to80 && isFPLsbs(i))
+ printf("xx ");
+ else
+ printf("%02x ", buf[i+28]);
+ if (i > 0 && ((i % 10) == 9))
printf("\n");
}
- printf("\n");
+}
+
+int main ( int argc, char** argv )
+{
+ int i;
+ unsigned char* buf = malloc(108);
+ int xx = argc > 1;
+ printf("Re-run with any arg to suppress least-significant\n"
+ " 16 bits of FP numbers\n");
+ for (i = 0; i < 108; i++)
+ buf[i] = 0xAA;
+
+ /* dump FPU state in buf, and show it. */
+ do_fsave(buf);
+ show_fpustate( buf, xx );
+
return 0;
}