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-rw-r--r--sysdeps/standalone/i386/i386.h167
1 files changed, 83 insertions, 84 deletions
diff --git a/sysdeps/standalone/i386/i386.h b/sysdeps/standalone/i386/i386.h
index 8302773709..20d7f01fe3 100644
--- a/sysdeps/standalone/i386/i386.h
+++ b/sysdeps/standalone/i386/i386.h
@@ -1,29 +1,28 @@
-/* Copyright (C) 1994 Free Software Foundation, Inc.
+/* Copyright (C) 1994, 1997 Free Software Foundation, Inc.
Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
On-Line Applications Research Corporation.
-
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/* i386.h
*
- * This file contains macros which are used to access i80386
+ * This file contains macros which are used to access i80386
* registers which are not addressable by C. This file contains
- * functions which are useful to those developing target
+ * functions which are useful to those developing target
* specific support routines.
*/
@@ -37,16 +36,16 @@ typedef unsigned int unsigned32;
#define disable_intr( isrlevel ) \
{ (isrlevel) = 0; \
asm volatile ( "pushf ; \
- pop %0 ; \
- cli " \
- : "=r" ((isrlevel)) : "0" ((isrlevel)) ); \
+ pop %0 ; \
+ cli " \
+ : "=r" ((isrlevel)) : "0" ((isrlevel)) ); \
}
#define enable_intr( isrlevel ) \
{ asm volatile ( "push %0 ; \
- popf " \
- : "=r" ((isrlevel)) : "0" ((isrlevel)) ); \
+ popf " \
+ : "=r" ((isrlevel)) : "0" ((isrlevel)) ); \
}
#define delay( _microseconds ) \
@@ -56,10 +55,10 @@ typedef unsigned int unsigned32;
_counter = (_microseconds); \
\
asm volatile ( "0: nop;" \
- " mov %0,%0 ;" \
- " loop 0" : "=c" (_counter) \
- : "0" (_counter) \
- ); \
+ " mov %0,%0 ;" \
+ " loop 0" : "=c" (_counter) \
+ : "0" (_counter) \
+ ); \
\
}
@@ -69,7 +68,7 @@ static inline unsigned16 get_cs()
{
register unsigned16 segment = 0;
- asm volatile ( "movw %%cs,%0" : "=r" (segment) : "0" (segment) );
+ asm volatile ( "movw %%cs,%0" : "=r" (segment) : "0" (segment) );
return segment;
}
@@ -78,7 +77,7 @@ static inline unsigned16 get_ds()
{
register unsigned16 segment = 0;
- asm volatile ( "movw %%ds,%0" : "=r" (segment) : "0" (segment) );
+ asm volatile ( "movw %%ds,%0" : "=r" (segment) : "0" (segment) );
return segment;
}
@@ -87,7 +86,7 @@ static inline unsigned16 get_es()
{
register unsigned16 segment = 0;
- asm volatile ( "movw %%es,%0" : "=r" (segment) : "0" (segment) );
+ asm volatile ( "movw %%es,%0" : "=r" (segment) : "0" (segment) );
return segment;
}
@@ -96,7 +95,7 @@ static inline unsigned16 get_ss()
{
register unsigned16 segment = 0;
- asm volatile ( "movw %%ss,%0" : "=r" (segment) : "0" (segment) );
+ asm volatile ( "movw %%ss,%0" : "=r" (segment) : "0" (segment) );
return segment;
}
@@ -105,7 +104,7 @@ static inline unsigned16 get_fs()
{
register unsigned16 segment = 0;
- asm volatile ( "movw %%fs,%0" : "=r" (segment) : "0" (segment) );
+ asm volatile ( "movw %%fs,%0" : "=r" (segment) : "0" (segment) );
return segment;
}
@@ -114,7 +113,7 @@ static inline unsigned16 get_gs()
{
register unsigned16 segment = 0;
- asm volatile ( "movw %%gs,%0" : "=r" (segment) : "0" (segment) );
+ asm volatile ( "movw %%gs,%0" : "=r" (segment) : "0" (segment) );
return segment;
}
@@ -126,8 +125,8 @@ static inline unsigned16 get_gs()
register unsigned8 __value = _value; \
\
asm volatile ( "outb %0,%1" : "=a" (__value), "=d" (__port) \
- : "0" (__value), "1" (__port) \
- ); \
+ : "0" (__value), "1" (__port) \
+ ); \
}
#define outport_word( _port, _value ) \
@@ -135,8 +134,8 @@ static inline unsigned16 get_gs()
register unsigned16 __value = _value; \
\
asm volatile ( "outw %0,%1" : "=a" (__value), "=d" (__port) \
- : "0" (__value), "1" (__port) \
- ); \
+ : "0" (__value), "1" (__port) \
+ ); \
}
#define outport_long( _port, _value ) \
@@ -144,8 +143,8 @@ static inline unsigned16 get_gs()
register unsigned32 __value = _value; \
\
asm volatile ( "outl %0,%1" : "=a" (__value), "=d" (__port) \
- : "0" (__value), "1" (__port) \
- ); \
+ : "0" (__value), "1" (__port) \
+ ); \
}
#define inport_byte( _port, _value ) \
@@ -153,8 +152,8 @@ static inline unsigned16 get_gs()
register unsigned8 __value = 0; \
\
asm volatile ( "inb %1,%0" : "=a" (__value), "=d" (__port) \
- : "0" (__value), "1" (__port) \
- ); \
+ : "0" (__value), "1" (__port) \
+ ); \
_value = __value; \
}
@@ -163,8 +162,8 @@ static inline unsigned16 get_gs()
register unsigned16 __value = 0; \
\
asm volatile ( "inw %1,%0" : "=a" (__value), "=d" (__port) \
- : "0" (__value), "1" (__port) \
- ); \
+ : "0" (__value), "1" (__port) \
+ ); \
_value = __value; \
}
@@ -173,8 +172,8 @@ static inline unsigned16 get_gs()
register unsigned32 __value = 0; \
\
asm volatile ( "inl %1,%0" : "=a" (__value), "=d" (__port) \
- : "0" (__value), "1" (__port) \
- ); \
+ : "0" (__value), "1" (__port) \
+ ); \
_value = __value; \
}
@@ -191,7 +190,7 @@ struct GDT_slot {
unsigned8 base_24_31;
};
-/* See Chapter 9 - Exceptions and Interrupts in i386 manual
+/* See Chapter 9 - Exceptions and Interrupts in i386 manual
*
* NOTE: This is the IDT entry for interrupt gates ONLY.
*/
@@ -249,12 +248,12 @@ void *Physical_to_logical(
register unsigned32 _temporary = 0; \
\
asm volatile( "movl %%gs:(%0),%1 ; \
- movl %1,(%2) ; \
- movl %%gs:4(%0),%1 ; \
- movl %1,4(%2)" \
- : "=r" (_gdt_slot), "=r" (_temporary), "=r" (_slot) \
- : "0" (_gdt_slot), "1" (_temporary), "2" (_slot) \
- ); \
+ movl %1,(%2) ; \
+ movl %%gs:4(%0),%1 ; \
+ movl %1,4(%2)" \
+ : "=r" (_gdt_slot), "=r" (_temporary), "=r" (_slot) \
+ : "0" (_gdt_slot), "1" (_temporary), "2" (_slot) \
+ ); \
}
#define set_GDT_slot( _gdtr_base, _segment, _slot_address ) \
@@ -264,63 +263,63 @@ void *Physical_to_logical(
register unsigned32 _temporary = 0; \
\
asm volatile( "movl (%2),%1 ; \
- movl %1,%%gs:(%0) ; \
- movl 4(%2),%1 ; \
- movl %1,%%gs:4(%0) \
- " \
- : "=r" (_gdt_slot), "=r" (_temporary), "=r" (_slot) \
- : "0" (_gdt_slot), "1" (_temporary), "2" (_slot) \
- ); \
+ movl %1,%%gs:(%0) ; \
+ movl 4(%2),%1 ; \
+ movl %1,%%gs:4(%0) \
+ " \
+ : "=r" (_gdt_slot), "=r" (_temporary), "=r" (_slot) \
+ : "0" (_gdt_slot), "1" (_temporary), "2" (_slot) \
+ ); \
}
-static inline void set_segment(
- unsigned16 segment,
+static inline void set_segment(
+ unsigned16 segment,
unsigned32 base,
- unsigned32 limit
-)
-{
- struct DTR_load_save_format gdtr;
+ unsigned32 limit
+)
+{
+ struct DTR_load_save_format gdtr;
volatile struct GDT_slot Gdt_slot;
volatile struct GDT_slot *gdt_slot = &Gdt_slot;
unsigned16 tmp_segment = 0;
unsigned32 limit_adjusted;
-
-
+
+
/* load physical address of the GDT */
get_GDTR( &gdtr );
-
+
gdt_slot->type_dt_dpl_p = 0x92; /* present, dpl=0, */
- /* application=1, */
- /* type=data read/write */
+ /* application=1, */
+ /* type=data read/write */
gdt_slot->limit_16_19_granularity = 0x40; /* 32 bit segment */
limit_adjusted = limit;
if ( limit > 4095 ) {
gdt_slot->limit_16_19_granularity |= 0x80; /* set granularity bit */
limit_adjusted /= 4096;
- }
-
+ }
+
gdt_slot->limit_16_19_granularity |= (limit_adjusted >> 16) & 0xff;
gdt_slot->limit_0_15 = limit_adjusted & 0xffff;
-
+
gdt_slot->base_0_15 = base & 0xffff;
gdt_slot->base_16_23 = (base >> 16) & 0xff;
gdt_slot->base_24_31 = (base >> 24);
-
+
set_GDT_slot( gdtr.physical_address, segment, gdt_slot );
/* Now, reload all segment registers so the limit takes effect. */
asm volatile( "movw %%ds,%0 ; movw %0,%%ds
- movw %%es,%0 ; movw %0,%%es
- movw %%fs,%0 ; movw %0,%%fs
- movw %%gs,%0 ; movw %0,%%gs
- movw %%ss,%0 ; movw %0,%%ss"
- : "=r" (tmp_segment)
- : "0" (tmp_segment)
- );
-
+ movw %%es,%0 ; movw %0,%%es
+ movw %%fs,%0 ; movw %0,%%fs
+ movw %%gs,%0 ; movw %0,%%gs
+ movw %%ss,%0 ; movw %0,%%ss"
+ : "=r" (tmp_segment)
+ : "0" (tmp_segment)
+ );
+
}
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 13:53:43 +0000