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authorIngo Molnar <mingo@elte.hu>2008-01-30 15:30:11 +0300
committerIngo Molnar <mingo@elte.hu>2008-01-30 15:30:11 +0300
commit3d0d14f983b55a570b976976284df4c434af3223 (patch)
tree864f11c0ce5ee1e15acdd196018b79d0d0e2685d /arch/x86/math-emu/fpu_aux.c
parenta4ec1effce83796209a0258602b0cf50026d86f2 (diff)
downloadlinux-3d0d14f983b55a570b976976284df4c434af3223.tar.xz
x86: lindent arch/i386/math-emu
lindent these files: errors lines of code errors/KLOC arch/x86/math-emu/ 2236 9424 237.2 arch/x86/math-emu/ 128 8706 14.7 no other changes. No code changed: text data bss dec hex filename 5589802 612739 3833856 10036397 9924ad vmlinux.before 5589802 612739 3833856 10036397 9924ad vmlinux.after the intent of this patch is to ease the automated tracking of kernel code quality - it's just much easier for us to maintain it if every file in arch/x86 is supposed to be clean. NOTE: it is a known problem of lindent that it causes some style damage of its own, but it's a safe tool (well, except for the gcc array range initializers extension), so we did the bulk of the changes via lindent, and did the manual fixups in a followup patch. the resulting math-emu code has been tested by Thomas Gleixner on a real 386 DX CPU as well, and it works fine. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/math-emu/fpu_aux.c')
-rw-r--r--arch/x86/math-emu/fpu_aux.c211
1 files changed, 97 insertions, 114 deletions
diff --git a/arch/x86/math-emu/fpu_aux.c b/arch/x86/math-emu/fpu_aux.c
index 20886cfb9f76..491e737ce547 100644
--- a/arch/x86/math-emu/fpu_aux.c
+++ b/arch/x86/math-emu/fpu_aux.c
@@ -16,34 +16,34 @@
#include "status_w.h"
#include "control_w.h"
-
static void fnop(void)
{
}
static void fclex(void)
{
- partial_status &= ~(SW_Backward|SW_Summary|SW_Stack_Fault|SW_Precision|
- SW_Underflow|SW_Overflow|SW_Zero_Div|SW_Denorm_Op|
- SW_Invalid);
- no_ip_update = 1;
+ partial_status &=
+ ~(SW_Backward | SW_Summary | SW_Stack_Fault | SW_Precision |
+ SW_Underflow | SW_Overflow | SW_Zero_Div | SW_Denorm_Op |
+ SW_Invalid);
+ no_ip_update = 1;
}
/* Needs to be externally visible */
void finit(void)
{
- control_word = 0x037f;
- partial_status = 0;
- top = 0; /* We don't keep top in the status word internally. */
- fpu_tag_word = 0xffff;
- /* The behaviour is different from that detailed in
- Section 15.1.6 of the Intel manual */
- operand_address.offset = 0;
- operand_address.selector = 0;
- instruction_address.offset = 0;
- instruction_address.selector = 0;
- instruction_address.opcode = 0;
- no_ip_update = 1;
+ control_word = 0x037f;
+ partial_status = 0;
+ top = 0; /* We don't keep top in the status word internally. */
+ fpu_tag_word = 0xffff;
+ /* The behaviour is different from that detailed in
+ Section 15.1.6 of the Intel manual */
+ operand_address.offset = 0;
+ operand_address.selector = 0;
+ instruction_address.offset = 0;
+ instruction_address.selector = 0;
+ instruction_address.opcode = 0;
+ no_ip_update = 1;
}
/*
@@ -54,151 +54,134 @@ void finit(void)
#define fsetpm fnop
static FUNC const finit_table[] = {
- feni, fdisi, fclex, finit,
- fsetpm, FPU_illegal, FPU_illegal, FPU_illegal
+ feni, fdisi, fclex, finit,
+ fsetpm, FPU_illegal, FPU_illegal, FPU_illegal
};
void finit_(void)
{
- (finit_table[FPU_rm])();
+ (finit_table[FPU_rm]) ();
}
-
static void fstsw_ax(void)
{
- *(short *) &FPU_EAX = status_word();
- no_ip_update = 1;
+ *(short *)&FPU_EAX = status_word();
+ no_ip_update = 1;
}
static FUNC const fstsw_table[] = {
- fstsw_ax, FPU_illegal, FPU_illegal, FPU_illegal,
- FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
+ fstsw_ax, FPU_illegal, FPU_illegal, FPU_illegal,
+ FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
};
void fstsw_(void)
{
- (fstsw_table[FPU_rm])();
+ (fstsw_table[FPU_rm]) ();
}
-
static FUNC const fp_nop_table[] = {
- fnop, FPU_illegal, FPU_illegal, FPU_illegal,
- FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
+ fnop, FPU_illegal, FPU_illegal, FPU_illegal,
+ FPU_illegal, FPU_illegal, FPU_illegal, FPU_illegal
};
void fp_nop(void)
{
- (fp_nop_table[FPU_rm])();
+ (fp_nop_table[FPU_rm]) ();
}
-
void fld_i_(void)
{
- FPU_REG *st_new_ptr;
- int i;
- u_char tag;
-
- if ( STACK_OVERFLOW )
- { FPU_stack_overflow(); return; }
-
- /* fld st(i) */
- i = FPU_rm;
- if ( NOT_EMPTY(i) )
- {
- reg_copy(&st(i), st_new_ptr);
- tag = FPU_gettagi(i);
- push();
- FPU_settag0(tag);
- }
- else
- {
- if ( control_word & CW_Invalid )
- {
- /* The masked response */
- FPU_stack_underflow();
+ FPU_REG *st_new_ptr;
+ int i;
+ u_char tag;
+
+ if (STACK_OVERFLOW) {
+ FPU_stack_overflow();
+ return;
}
- else
- EXCEPTION(EX_StackUnder);
- }
-}
+ /* fld st(i) */
+ i = FPU_rm;
+ if (NOT_EMPTY(i)) {
+ reg_copy(&st(i), st_new_ptr);
+ tag = FPU_gettagi(i);
+ push();
+ FPU_settag0(tag);
+ } else {
+ if (control_word & CW_Invalid) {
+ /* The masked response */
+ FPU_stack_underflow();
+ } else
+ EXCEPTION(EX_StackUnder);
+ }
+}
void fxch_i(void)
{
- /* fxch st(i) */
- FPU_REG t;
- int i = FPU_rm;
- FPU_REG *st0_ptr = &st(0), *sti_ptr = &st(i);
- long tag_word = fpu_tag_word;
- int regnr = top & 7, regnri = ((regnr + i) & 7);
- u_char st0_tag = (tag_word >> (regnr*2)) & 3;
- u_char sti_tag = (tag_word >> (regnri*2)) & 3;
-
- if ( st0_tag == TAG_Empty )
- {
- if ( sti_tag == TAG_Empty )
- {
- FPU_stack_underflow();
- FPU_stack_underflow_i(i);
- return;
+ /* fxch st(i) */
+ FPU_REG t;
+ int i = FPU_rm;
+ FPU_REG *st0_ptr = &st(0), *sti_ptr = &st(i);
+ long tag_word = fpu_tag_word;
+ int regnr = top & 7, regnri = ((regnr + i) & 7);
+ u_char st0_tag = (tag_word >> (regnr * 2)) & 3;
+ u_char sti_tag = (tag_word >> (regnri * 2)) & 3;
+
+ if (st0_tag == TAG_Empty) {
+ if (sti_tag == TAG_Empty) {
+ FPU_stack_underflow();
+ FPU_stack_underflow_i(i);
+ return;
+ }
+ if (control_word & CW_Invalid) {
+ /* Masked response */
+ FPU_copy_to_reg0(sti_ptr, sti_tag);
+ }
+ FPU_stack_underflow_i(i);
+ return;
}
- if ( control_word & CW_Invalid )
- {
- /* Masked response */
- FPU_copy_to_reg0(sti_ptr, sti_tag);
+ if (sti_tag == TAG_Empty) {
+ if (control_word & CW_Invalid) {
+ /* Masked response */
+ FPU_copy_to_regi(st0_ptr, st0_tag, i);
+ }
+ FPU_stack_underflow();
+ return;
}
- FPU_stack_underflow_i(i);
- return;
- }
- if ( sti_tag == TAG_Empty )
- {
- if ( control_word & CW_Invalid )
- {
- /* Masked response */
- FPU_copy_to_regi(st0_ptr, st0_tag, i);
- }
- FPU_stack_underflow();
- return;
- }
- clear_C1();
-
- reg_copy(st0_ptr, &t);
- reg_copy(sti_ptr, st0_ptr);
- reg_copy(&t, sti_ptr);
-
- tag_word &= ~(3 << (regnr*2)) & ~(3 << (regnri*2));
- tag_word |= (sti_tag << (regnr*2)) | (st0_tag << (regnri*2));
- fpu_tag_word = tag_word;
-}
+ clear_C1();
+ reg_copy(st0_ptr, &t);
+ reg_copy(sti_ptr, st0_ptr);
+ reg_copy(&t, sti_ptr);
+
+ tag_word &= ~(3 << (regnr * 2)) & ~(3 << (regnri * 2));
+ tag_word |= (sti_tag << (regnr * 2)) | (st0_tag << (regnri * 2));
+ fpu_tag_word = tag_word;
+}
void ffree_(void)
{
- /* ffree st(i) */
- FPU_settagi(FPU_rm, TAG_Empty);
+ /* ffree st(i) */
+ FPU_settagi(FPU_rm, TAG_Empty);
}
-
void ffreep(void)
{
- /* ffree st(i) + pop - unofficial code */
- FPU_settagi(FPU_rm, TAG_Empty);
- FPU_pop();
+ /* ffree st(i) + pop - unofficial code */
+ FPU_settagi(FPU_rm, TAG_Empty);
+ FPU_pop();
}
-
void fst_i_(void)
{
- /* fst st(i) */
- FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
+ /* fst st(i) */
+ FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
}
-
void fstp_i(void)
{
- /* fstp st(i) */
- FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
- FPU_pop();
+ /* fstp st(i) */
+ FPU_copy_to_regi(&st(0), FPU_gettag0(), FPU_rm);
+ FPU_pop();
}
-