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Diffstat (limited to 'arch/x86/math-emu/reg_constant.c')
-rw-r--r--arch/x86/math-emu/reg_constant.c73
1 files changed, 35 insertions, 38 deletions
diff --git a/arch/x86/math-emu/reg_constant.c b/arch/x86/math-emu/reg_constant.c
index a8501580196..04869e64b18 100644
--- a/arch/x86/math-emu/reg_constant.c
+++ b/arch/x86/math-emu/reg_constant.c
@@ -16,29 +16,28 @@
#include "reg_constant.h"
#include "control_w.h"
-
#define MAKE_REG(s,e,l,h) { l, h, \
((EXTENDED_Ebias+(e)) | ((SIGN_##s != 0)*0x8000)) }
-FPU_REG const CONST_1 = MAKE_REG(POS, 0, 0x00000000, 0x80000000);
+FPU_REG const CONST_1 = MAKE_REG(POS, 0, 0x00000000, 0x80000000);
#if 0
-FPU_REG const CONST_2 = MAKE_REG(POS, 1, 0x00000000, 0x80000000);
+FPU_REG const CONST_2 = MAKE_REG(POS, 1, 0x00000000, 0x80000000);
FPU_REG const CONST_HALF = MAKE_REG(POS, -1, 0x00000000, 0x80000000);
-#endif /* 0 */
-static FPU_REG const CONST_L2T = MAKE_REG(POS, 1, 0xcd1b8afe, 0xd49a784b);
-static FPU_REG const CONST_L2E = MAKE_REG(POS, 0, 0x5c17f0bc, 0xb8aa3b29);
-FPU_REG const CONST_PI = MAKE_REG(POS, 1, 0x2168c235, 0xc90fdaa2);
-FPU_REG const CONST_PI2 = MAKE_REG(POS, 0, 0x2168c235, 0xc90fdaa2);
-FPU_REG const CONST_PI4 = MAKE_REG(POS, -1, 0x2168c235, 0xc90fdaa2);
-static FPU_REG const CONST_LG2 = MAKE_REG(POS, -2, 0xfbcff799, 0x9a209a84);
-static FPU_REG const CONST_LN2 = MAKE_REG(POS, -1, 0xd1cf79ac, 0xb17217f7);
+#endif /* 0 */
+static FPU_REG const CONST_L2T = MAKE_REG(POS, 1, 0xcd1b8afe, 0xd49a784b);
+static FPU_REG const CONST_L2E = MAKE_REG(POS, 0, 0x5c17f0bc, 0xb8aa3b29);
+FPU_REG const CONST_PI = MAKE_REG(POS, 1, 0x2168c235, 0xc90fdaa2);
+FPU_REG const CONST_PI2 = MAKE_REG(POS, 0, 0x2168c235, 0xc90fdaa2);
+FPU_REG const CONST_PI4 = MAKE_REG(POS, -1, 0x2168c235, 0xc90fdaa2);
+static FPU_REG const CONST_LG2 = MAKE_REG(POS, -2, 0xfbcff799, 0x9a209a84);
+static FPU_REG const CONST_LN2 = MAKE_REG(POS, -1, 0xd1cf79ac, 0xb17217f7);
/* Extra bits to take pi/2 to more than 128 bits precision. */
FPU_REG const CONST_PI2extra = MAKE_REG(NEG, -66,
- 0xfc8f8cbb, 0xece675d1);
+ 0xfc8f8cbb, 0xece675d1);
/* Only the sign (and tag) is used in internal zeroes */
-FPU_REG const CONST_Z = MAKE_REG(POS, EXP_UNDER, 0x0, 0x0);
+FPU_REG const CONST_Z = MAKE_REG(POS, EXP_UNDER, 0x0, 0x0);
/* Only the sign and significand (and tag) are used in internal NaNs */
/* The 80486 never generates one of these
@@ -48,24 +47,22 @@ FPU_REG const CONST_SNAN = MAKE_REG(POS, EXP_OVER, 0x00000001, 0x80000000);
FPU_REG const CONST_QNaN = MAKE_REG(NEG, EXP_OVER, 0x00000000, 0xC0000000);
/* Only the sign (and tag) is used in internal infinities */
-FPU_REG const CONST_INF = MAKE_REG(POS, EXP_OVER, 0x00000000, 0x80000000);
-
+FPU_REG const CONST_INF = MAKE_REG(POS, EXP_OVER, 0x00000000, 0x80000000);
static void fld_const(FPU_REG const *c, int adj, u_char tag)
{
- FPU_REG *st_new_ptr;
-
- if ( STACK_OVERFLOW )
- {
- FPU_stack_overflow();
- return;
- }
- push();
- reg_copy(c, st_new_ptr);
- st_new_ptr->sigl += adj; /* For all our fldxxx constants, we don't need to
- borrow or carry. */
- FPU_settag0(tag);
- clear_C1();
+ FPU_REG *st_new_ptr;
+
+ if (STACK_OVERFLOW) {
+ FPU_stack_overflow();
+ return;
+ }
+ push();
+ reg_copy(c, st_new_ptr);
+ st_new_ptr->sigl += adj; /* For all our fldxxx constants, we don't need to
+ borrow or carry. */
+ FPU_settag0(tag);
+ clear_C1();
}
/* A fast way to find out whether x is one of RC_DOWN or RC_CHOP
@@ -75,46 +72,46 @@ static void fld_const(FPU_REG const *c, int adj, u_char tag)
static void fld1(int rc)
{
- fld_const(&CONST_1, 0, TAG_Valid);
+ fld_const(&CONST_1, 0, TAG_Valid);
}
static void fldl2t(int rc)
{
- fld_const(&CONST_L2T, (rc == RC_UP) ? 1 : 0, TAG_Valid);
+ fld_const(&CONST_L2T, (rc == RC_UP) ? 1 : 0, TAG_Valid);
}
static void fldl2e(int rc)
{
- fld_const(&CONST_L2E, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+ fld_const(&CONST_L2E, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
}
static void fldpi(int rc)
{
- fld_const(&CONST_PI, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+ fld_const(&CONST_PI, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
}
static void fldlg2(int rc)
{
- fld_const(&CONST_LG2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+ fld_const(&CONST_LG2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
}
static void fldln2(int rc)
{
- fld_const(&CONST_LN2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
+ fld_const(&CONST_LN2, DOWN_OR_CHOP(rc) ? -1 : 0, TAG_Valid);
}
static void fldz(int rc)
{
- fld_const(&CONST_Z, 0, TAG_Zero);
+ fld_const(&CONST_Z, 0, TAG_Zero);
}
-typedef void (*FUNC_RC)(int);
+typedef void (*FUNC_RC) (int);
static FUNC_RC constants_table[] = {
- fld1, fldl2t, fldl2e, fldpi, fldlg2, fldln2, fldz, (FUNC_RC)FPU_illegal
+ fld1, fldl2t, fldl2e, fldpi, fldlg2, fldln2, fldz, (FUNC_RC) FPU_illegal
};
void fconst(void)
{
- (constants_table[FPU_rm])(control_word & CW_RC);
+ (constants_table[FPU_rm]) (control_word & CW_RC);
}