diff -Naur linux-0.01-rm-1.7/boot/head.s linux-0.01-rm-2.0/boot/head.s
--- linux-0.01-rm-1.7/boot/head.s	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/boot/head.s	2007-11-26 22:42:44.000000000 +0100
@@ -5,16 +5,17 @@
  * the page directory will exist. The startup code will be overwritten by
  * the page directory.
  */
+.code32
 .text
-.globl _idt,_gdt,_pg_dir
-_pg_dir:
+.globl idt,gdt,pg_dir,startup_32
+pg_dir:
 startup_32:
 	movl $0x10,%eax
 	mov %ax,%ds
 	mov %ax,%es
 	mov %ax,%fs
 	mov %ax,%gs
-	lss _stack_start,%esp
+	lss stack_start,%esp
 	call setup_idt
 	call setup_gdt
 	movl $0x10,%eax		# reload all the segment registers
@@ -22,7 +23,7 @@
 	mov %ax,%es		# reloaded in 'setup_gdt'
 	mov %ax,%fs
 	mov %ax,%gs
-	lss _stack_start,%esp
+	lss stack_start,%esp
 	xorl %eax,%eax
 1:	incl %eax		# check that A20 really IS enabled
 	movl %eax,0x000000
@@ -53,7 +54,7 @@
 	movw %dx,%ax		/* selector = 0x0008 = cs */
 	movw $0x8E00,%dx	/* interrupt gate - dpl=0, present */
 
-	lea _idt,%edi
+	lea idt,%edi
 	mov $256,%ecx
 rp_sidt:
 	movl %eax,(%edi)
@@ -95,7 +96,7 @@
 	pushl $0
 	pushl $0
 	pushl $L6		# return address for main, if it decides to.
-	pushl $_main
+	pushl $main
 	jmp setup_paging
 L6:
 	jmp L6			# main should never return here, but
@@ -139,8 +140,8 @@
 	xorl %eax,%eax
 	xorl %edi,%edi			/* pg_dir is at 0x000 */
 	cld;rep;stosl
-	movl $pg0+7,_pg_dir		/* set present bit/user r/w */
-	movl $pg1+7,_pg_dir+4		/*  --------- " " --------- */
+	movl $pg0+7,pg_dir		/* set present bit/user r/w */
+	movl $pg1+7,pg_dir+4		/*  --------- " " --------- */
 	movl $pg1+4092,%edi
 	movl $0x7ff007,%eax		/*  8Mb - 4096 + 7 (r/w user,p) */
 	std
@@ -158,17 +159,17 @@
 .word 0
 idt_descr:
 	.word 256*8-1		# idt contains 256 entries
-	.long _idt
+	.long idt
 .align 2
 .word 0
 gdt_descr:
 	.word 256*8-1		# so does gdt (not that that's any
-	.long _gdt		# magic number, but it works for me :^)
+	.long gdt		# magic number, but it works for me :^)
 
-	.align 3
-_idt:	.fill 256,8,0		# idt is uninitialized
+	.align 8
+idt:	.fill 256,8,0		# idt is uninitialized
 
-_gdt:	.quad 0x0000000000000000	/* NULL descriptor */
+gdt:	.quad 0x0000000000000000	/* NULL descriptor */
 	.quad 0x00c09a00000007ff	/* 8Mb */
 	.quad 0x00c09200000007ff	/* 8Mb */
 	.quad 0x0000000000000000	/* TEMPORARY - don't use */
diff -Naur linux-0.01-rm-1.7/build_tools linux-0.01-rm-2.0/build_tools
--- linux-0.01-rm-1.7/build_tools	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/build_tools	1970-01-01 01:00:00.000000000 +0100
@@ -1,3 +0,0 @@
-#bin/sh!
-export PATH=/usr/bin:/usr/local/bin
-gcc-4.1 -o tools/build tools/build.c
diff -Naur linux-0.01-rm-1.7/fs/bitmap.c linux-0.01-rm-2.0/fs/bitmap.c
--- linux-0.01-rm-1.7/fs/bitmap.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/fs/bitmap.c	2007-11-26 20:56:34.000000000 +0100
@@ -8,15 +8,15 @@
 __asm__("cld\n\t" \
 	"rep\n\t" \
 	"stosl" \
-	::"a" (0),"c" (BLOCK_SIZE/4),"D" ((long) (addr)):"cx","di")
+	::"a" (0),"c" (BLOCK_SIZE/4),"D" ((long) (addr))/*:"cx","di"*/)
 
 #define set_bit(nr,addr) ({\
-register int res __asm__("ax"); \
+register int res;/* __asm__("ax");*/ \
 __asm__("btsl %2,%3\n\tsetb %%al":"=a" (res):"0" (0),"r" (nr),"m" (*(addr))); \
 res;})
 
 #define clear_bit(nr,addr) ({\
-register int res __asm__("ax"); \
+register int res;/* __asm__("ax");*/ \
 __asm__("btrl %2,%3\n\tsetnb %%al":"=a" (res):"0" (0),"r" (nr),"m" (*(addr))); \
 res;})
 
@@ -33,7 +33,7 @@
 	"cmpl $8192,%%ecx\n\t" \
 	"jl 1b\n" \
 	"3:" \
-	:"=c" (__res):"c" (0),"S" (addr):"ax","dx","si"); \
+	:"=c" (__res):"c" (0),"S" (addr):"ax","dx"/*,"si"*/); \
 __res;})
 
 void free_block(int dev, int block)
diff -Naur linux-0.01-rm-1.7/fs/exec.c linux-0.01-rm-2.0/fs/exec.c
--- linux-0.01-rm-1.7/fs/exec.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/fs/exec.c	2007-12-25 10:13:01.000000000 +0100
@@ -18,16 +18,20 @@
  */
 #define MAX_ARG_PAGES 32
 
-#define cp_block(from,to) \
-__asm__("pushl $0x10\n\t" \
-	"pushl $0x17\n\t" \
-	"pop %%es\n\t" \
-	"cld\n\t" \
-	"rep\n\t" \
-	"movsl\n\t" \
-	"pop %%es" \
-	::"c" (BLOCK_SIZE/4),"S" (from),"D" (to) \
-	:"cx","di","si")
+inline void cp_block(const void * from,void * to)
+{
+int d0,d1,d2;
+__asm__ __volatile("pushl $0x10\n\t"
+	"pushl $0x17\n\t"
+	"pop %%es\n\t"
+	"cld\n\t"
+	"rep\n\t"
+	"movsl\n\t"
+	"pop %%es"
+	:"=&c" (d0), "=&S" (d1), "=&D" (d2)
+	:"0" (BLOCK_SIZE/4),"1" (from),"2" (to)
+	:"memory");
+}
 
 /*
  * read_head() reads blocks 1-6 (not 0). Block 0 has already been
diff -Naur linux-0.01-rm-1.7/fs/Makefile linux-0.01-rm-2.0/fs/Makefile
--- linux-0.01-rm-1.7/fs/Makefile	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/fs/Makefile	2007-11-26 20:56:55.000000000 +0100
@@ -1,8 +1,8 @@
-AR	=gar
-AS	=gas
+AR	=ar
+AS	=as
 CC	=gcc
-LD	=gld
-CFLAGS	=-Wall -O -fstrength-reduce -fcombine-regs -fomit-frame-pointer \
+LD	=ld
+CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer \
 	 -nostdinc -I../include
 CPP	=gcc -E -nostdinc -I../include
 
diff -Naur linux-0.01-rm-1.7/fs/namei.c linux-0.01-rm-2.0/fs/namei.c
--- linux-0.01-rm-1.7/fs/namei.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/fs/namei.c	2007-11-27 21:13:03.000000000 +0100
@@ -63,7 +63,7 @@
 		"setz %%al"
 		:"=a" (same)
 		:"0" (0),"S" ((long) name),"D" ((long) de->name),"c" (len)
-		:"cx","di","si");
+		/*:"cx","di","si"*/);
 	return same;
 }
 
diff -Naur linux-0.01-rm-1.7/fs/super.c linux-0.01-rm-2.0/fs/super.c
--- linux-0.01-rm-1.7/fs/super.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/fs/super.c	2007-11-26 20:50:42.000000000 +0100
@@ -7,7 +7,7 @@
 
 /* set_bit uses setb, as gas doesn't recognize setc */
 #define set_bit(bitnr,addr) ({ \
-register int __res __asm__("ax"); \
+register int __res;/* __asm__("ax");*/ \
 __asm__("bt %2,%3;setb %%al":"=a" (__res):"a" (0),"r" (bitnr),"m" (*(addr))); \
 __res; })
 
diff -Naur linux-0.01-rm-1.7/include/linux/kernel.h linux-0.01-rm-2.0/include/linux/kernel.h
--- linux-0.01-rm-1.7/include/linux/kernel.h	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/include/linux/kernel.h	2007-11-25 22:35:09.000000000 +0100
@@ -2,7 +2,7 @@
  * 'kernel.h' contains some often-used function prototypes etc
  */
 void verify_area(void * addr,int count);
-volatile void panic(const char * str);
+void panic(const char * str);
 int printf(const char * fmt, ...);
 int printk(const char * fmt, ...);
 int tty_write(unsigned ch,char * buf,int count);
diff -Naur linux-0.01-rm-1.7/include/linux/sched.h linux-0.01-rm-2.0/include/linux/sched.h
--- linux-0.01-rm-1.7/include/linux/sched.h	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/include/linux/sched.h	2007-12-23 19:33:36.000000000 +0100
@@ -167,64 +167,67 @@
  */
 #define switch_to(n) {\
 struct {long a,b;} __tmp; \
-__asm__("cmpl %%ecx,_current\n\t" \
+__asm__ __volatile__("cmpl %%ecx,current\n\t" \
 	"je 1f\n\t" \
-	"xchgl %%ecx,_current\n\t" \
+	"xchgl %%ecx,current\n\t" \
 	"movw %%dx,%1\n\t" \
-	"ljmp %0\n\t" \
+	"ljmp *%0\n\t" \
 	"cmpl %%ecx,%2\n\t" \
 	"jne 1f\n\t" \
 	"clts\n" \
-	"1:" \
+	"1:\n\t" \
 	::"m" (*&__tmp.a),"m" (*&__tmp.b), \
 	"m" (last_task_used_math),"d" _TSS(n),"c" ((long) task[n])); \
 }
 
 #define PAGE_ALIGN(n) (((n)+0xfff)&0xfffff000)
 
-#define _set_base(addr,base) \
-__asm__("movw %%dx,%0\n\t" \
+#define _set_base(addr,base) do { unsigned long __pr; \
+__asm__ __volatile__ ("movw %%dx,%1\n\t" \
 	"rorl $16,%%edx\n\t" \
-	"movb %%dl,%1\n\t" \
-	"movb %%dh,%2" \
-	::"m" (*((addr)+2)), \
-	  "m" (*((addr)+4)), \
-	  "m" (*((addr)+7)), \
-	  "d" (base) \
-	:"dx")
+	"movb %%dl,%2\n\t" \
+	"movb %%dh,%3" \
+	:"=&d" (__pr) \
+	:"m" (*((addr)+2)), \
+	 "m" (*((addr)+4)), \
+	 "m" (*((addr)+7)), \
+         "0" (base) \
+        ); } while(0)
 
-#define _set_limit(addr,limit) \
-__asm__("movw %%dx,%0\n\t" \
+#define _set_limit(addr,limit) do { unsigned long __lr; \
+__asm__ __volatile__ ("movw %%dx,%1\n\t" \
 	"rorl $16,%%edx\n\t" \
-	"movb %1,%%dh\n\t" \
+	"movb %2,%%dh\n\t" \
 	"andb $0xf0,%%dh\n\t" \
 	"orb %%dh,%%dl\n\t" \
-	"movb %%dl,%1" \
-	::"m" (*(addr)), \
-	  "m" (*((addr)+6)), \
-	  "d" (limit) \
-	:"dx")
+	"movb %%dl,%2" \
+	:"=&d" (__lr) \
+	:"m" (*(addr)), \
+	 "m" (*((addr)+6)), \
+	 "0" (limit) \
+        ); } while(0)
 
 #define set_base(ldt,base) _set_base( ((char *)&(ldt)) , base )
 #define set_limit(ldt,limit) _set_limit( ((char *)&(ldt)) , (limit-1)>>12 )
 
-#define _get_base(addr) ({\
-unsigned long __base; \
-__asm__("movb %3,%%dh\n\t" \
-	"movb %2,%%dl\n\t" \
-	"shll $16,%%edx\n\t" \
-	"movw %1,%%dx" \
-	:"=d" (__base) \
-	:"m" (*((addr)+2)), \
-	 "m" (*((addr)+4)), \
-	 "m" (*((addr)+7))); \
-__base;})
-
+static inline unsigned long _get_base(char * addr)
+{
+	unsigned long __base;
+	__asm__("movb %3,%%dh\n\t"
+		"movb %2,%%dl\n\t"
+		"shll $16,%%edx\n\t"
+		"movw %1,%%dx"
+		:"=&d" (__base)
+		:"m" (*((addr)+2)),
+		 "m" (*((addr)+4)),
+		 "m" (*((addr)+7)));
+	return __base;
+}
 #define get_base(ldt) _get_base( ((char *)&(ldt)) )
 
 #define get_limit(segment) ({ \
 unsigned long __limit; \
-__asm__("lsll %1,%0\n\tincl %0":"=r" (__limit):"r" (segment)); \
+__asm__ __volatile__("lsll %1,%0\n\tincl %0":"=r" (__limit):"r" (segment)); \
 __limit;})
 
 #endif
diff -Naur linux-0.01-rm-1.7/include/string.h linux-0.01-rm-2.0/include/string.h
--- linux-0.01-rm-1.7/include/string.h	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/include/string.h	2007-12-23 11:43:37.000000000 +0100
@@ -26,18 +26,21 @@
  
 extern inline char * strcpy(char * dest,const char *src)
 {
-__asm__("cld\n"
+int d0, d1, d2;
+__asm__ __volatile__("cld\n\t"
 	"1:\tlodsb\n\t"
 	"stosb\n\t"
 	"testb %%al,%%al\n\t"
 	"jne 1b"
-	::"S" (src),"D" (dest):"si","di","ax");
+	: "=&S" (d0), "=&D" (d1), "=&a" (d2)
+	:"0" (src),"1" (dest) : "memory");
 return dest;
 }
 
 extern inline char * strncpy(char * dest,const char *src,int count)
 {
-__asm__("cld\n"
+int d0, d1, d2, d3;
+__asm__ __volatile__("cld\n\t"
 	"1:\tdecl %2\n\t"
 	"js 2f\n\t"
 	"lodsb\n\t"
@@ -47,13 +50,15 @@
 	"rep\n\t"
 	"stosb\n"
 	"2:"
-	::"S" (src),"D" (dest),"c" (count):"si","di","ax","cx");
+	: "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
+	:"0" (src),"1" (dest),"2" (count) : "memory");
 return dest;
 }
 
 extern inline char * strcat(char * dest,const char * src)
 {
-__asm__("cld\n\t"
+int d0, d1, d2, d3;
+__asm__ __volatile__("cld\n\t"
 	"repne\n\t"
 	"scasb\n\t"
 	"decl %1\n"
@@ -61,17 +66,19 @@
 	"stosb\n\t"
 	"testb %%al,%%al\n\t"
 	"jne 1b"
-	::"S" (src),"D" (dest),"a" (0),"c" (0xffffffff):"si","di","ax","cx");
+	: "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+	: "0" (src), "1" (dest), "2" (0), "3" (0xffffffffu):"memory");
 return dest;
 }
 
 extern inline char * strncat(char * dest,const char * src,int count)
 {
-__asm__("cld\n\t"
+int d0, d1, d2, d3;
+__asm__ __volatile__("cld\n\t"
 	"repne\n\t"
 	"scasb\n\t"
 	"decl %1\n\t"
-	"movl %4,%3\n"
+	"movl %8,%3\n"
 	"1:\tdecl %3\n\t"
 	"js 2f\n\t"
 	"lodsb\n\t"
@@ -80,15 +87,17 @@
 	"jne 1b\n"
 	"2:\txorl %2,%2\n\t"
 	"stosb"
-	::"S" (src),"D" (dest),"a" (0),"c" (0xffffffff),"g" (count)
-	:"si","di","ax","cx");
+	: "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+	: "0" (src),"1" (dest),"2" (0),"3" (0xffffffffu), "g" (count)
+	: "memory");
 return dest;
 }
 
 extern inline int strcmp(const char * cs,const char * ct)
 {
-register int __res __asm__("ax");
-__asm__("cld\n"
+int d0, d1;
+register int __res;
+__asm__ __volatile__("cld\n\t"
 	"1:\tlodsb\n\t"
 	"scasb\n\t"
 	"jne 2f\n\t"
@@ -96,18 +105,20 @@
 	"jne 1b\n\t"
 	"xorl %%eax,%%eax\n\t"
 	"jmp 3f\n"
-	"2:\tmovl $1,%%eax\n\t"
-	"jl 3f\n\t"
-	"negl %%eax\n"
+	"2:\tsbbl %%eax,%%eax\n\t"
+	"orb $1,%%al\n"
 	"3:"
-	:"=a" (__res):"D" (cs),"S" (ct):"si","di");
+	:"=a" (__res), "=&S" (d0), "=&D" (d1)
+	:"1" (cs),"2" (ct)
+	:"memory");
 return __res;
 }
 
 extern inline int strncmp(const char * cs,const char * ct,int count)
 {
-register int __res __asm__("ax");
-__asm__("cld\n"
+register int __res;
+int d0, d1, d2;
+__asm__ __volatile__("cld\n\t"
 	"1:\tdecl %3\n\t"
 	"js 2f\n\t"
 	"lodsb\n\t"
@@ -117,18 +128,20 @@
 	"jne 1b\n"
 	"2:\txorl %%eax,%%eax\n\t"
 	"jmp 4f\n"
-	"3:\tmovl $1,%%eax\n\t"
-	"jl 4f\n\t"
-	"negl %%eax\n"
+	"3:\tsbbl %%eax,%%eax\n\t"
+	"orb $1,%%al\n"
 	"4:"
-	:"=a" (__res):"D" (cs),"S" (ct),"c" (count):"si","di","cx");
+	:"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
+	:"1" (cs),"2" (ct),"3" (count)
+	:"memory");
 return __res;
 }
 
 extern inline char * strchr(const char * s,char c)
 {
-register char * __res __asm__("ax");
-__asm__("cld\n\t"
+int d0;
+register char * __res;
+__asm__ __volatile__(
 	"movb %%al,%%ah\n"
 	"1:\tlodsb\n\t"
 	"cmpb %%ah,%%al\n\t"
@@ -138,29 +151,33 @@
 	"movl $1,%1\n"
 	"2:\tmovl %1,%0\n\t"
 	"decl %0"
-	:"=a" (__res):"S" (s),"0" (c):"si");
+	:"=a" (__res), "=&S" (d0)
+	:"1" (s),"0" (c)
+	:"memory");
 return __res;
 }
 
 extern inline char * strrchr(const char * s,char c)
 {
-register char * __res __asm__("dx");
-__asm__("cld\n\t"
+int d0, d1;
+register char * __res;
+__asm__ __volatile__("cld\n\t"
 	"movb %%al,%%ah\n"
 	"1:\tlodsb\n\t"
 	"cmpb %%ah,%%al\n\t"
 	"jne 2f\n\t"
-	"movl %%esi,%0\n\t"
-	"decl %0\n"
+	"leal -1(%%esi),%0\n"
 	"2:\ttestb %%al,%%al\n\t"
 	"jne 1b"
-	:"=d" (__res):"0" (0),"S" (s),"a" (c):"ax","si");
+	:"=g" (__res), "=&S" (d0), "=&a" (d1)
+	:"0" (0),"1" (s),"2" (c)
+	:"memory");
 return __res;
 }
 
 extern inline int strspn(const char * cs, const char * ct)
 {
-register char * __res __asm__("si");
+register char * __res;// __asm__("si");
 __asm__("cld\n\t"
 	"movl %4,%%edi\n\t"
 	"repne\n\t"
@@ -178,13 +195,13 @@
 	"je 1b\n"
 	"2:\tdecl %0"
 	:"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
-	:"ax","cx","dx","di");
+	:/*"ax","cx",*/"dx","di"); /* TODO : constraint may be wrong*/
 return __res-cs;
 }
 
 extern inline int strcspn(const char * cs, const char * ct)
 {
-register char * __res __asm__("si");
+register char * __res;// __asm__("si");
 __asm__("cld\n\t"
 	"movl %4,%%edi\n\t"
 	"repne\n\t"
@@ -202,13 +219,13 @@
 	"jne 1b\n"
 	"2:\tdecl %0"
 	:"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
-	:"ax","cx","dx","di");
+	:/*"ax","cx",*/"dx","di"); /* TODO : constraint may be wrong*/
 return __res-cs;
 }
 
 extern inline char * strpbrk(const char * cs,const char * ct)
 {
-register char * __res __asm__("si");
+register char * __res;// __asm__("si");
 __asm__("cld\n\t"
 	"movl %4,%%edi\n\t"
 	"repne\n\t"
@@ -229,13 +246,13 @@
 	"2:\txorl %0,%0\n"
 	"3:"
 	:"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
-	:"ax","cx","dx","di");
+	:/*"ax","cx",*/"dx","di");/* TODO : constraint may be wrong*/
 return __res;
 }
 
 extern inline char * strstr(const char * cs,const char * ct)
 {
-register char * __res __asm__("ax");
+register char * __res;// __asm__("ax");
 __asm__("cld\n\t" \
 	"movl %4,%%edi\n\t"
 	"repne\n\t"
@@ -256,19 +273,22 @@
 	"xorl %%eax,%%eax\n\t"
 	"2:"
 	:"=a" (__res):"0" (0),"c" (0xffffffff),"S" (cs),"g" (ct)
-	:"cx","dx","di","si");
+	:/*"cx",*/"dx","di"/*,"si"*/); /* TODO : constraint may be wrong*/
 return __res;
 }
 
 extern inline int strlen(const char * s)
 {
-register int __res __asm__("cx");
-__asm__("cld\n\t"
+int d0;
+register int __res;
+__asm__ __volatile__("cld\n\t"
 	"repne\n\t"
 	"scasb\n\t"
 	"notl %0\n\t"
 	"decl %0"
-	:"=c" (__res):"D" (s),"a" (0),"0" (0xffffffff):"di");
+	:"=c" (__res), "=&D" (d0)
+	:"1" (s),"a" (0), "0" (0xffffffffu)
+	:"memory");
 return __res;
 }
 
@@ -276,7 +296,7 @@
 
 extern inline char * strtok(char * s,const char * ct)
 {
-register char * __res __asm__("si");
+register char * __res;// __asm__("si");
 __asm__("testl %1,%1\n\t"
 	"jne 1f\n\t"
 	"testl %0,%0\n\t"
@@ -329,40 +349,46 @@
 	"8:"
 	:"=b" (__res),"=S" (___strtok)
 	:"0" (___strtok),"1" (s),"g" (ct)
-	:"ax","cx","dx","di");
+	:"ax","cx","dx","di"); /* TODO : constraint may be wrong*/
 return __res;
 }
 
 extern inline void * memcpy(void * dest,const void * src, int n)
 {
-__asm__("cld\n\t"
+int d0,d1,d2;
+__asm__ __volatile("cld\n\t"
 	"rep\n\t"
 	"movsb"
-	::"c" (n),"S" (src),"D" (dest)
-	:"cx","si","di");
+	:"=&c" (d0), "=&S" (d1), "=&D" (d2)
+	:"0" (n),"1" (src),"2" (dest)
+	:"memory");
 return dest;
 }
 
 extern inline void * memmove(void * dest,const void * src, int n)
 {
-if (dest<src)
-__asm__("cld\n\t"
-	"rep\n\t"
-	"movsb"
-	::"c" (n),"S" (src),"D" (dest)
-	:"cx","si","di");
-else
-__asm__("std\n\t"
-	"rep\n\t"
-	"movsb"
-	::"c" (n),"S" (src+n-1),"D" (dest+n-1)
-	:"cx","si","di");
-return dest;
+	int d0, d1, d2;
+
+	if (dest < src) {
+		memcpy(dest,src,n);
+	} else {
+		__asm__ __volatile__(
+			"std\n\t"
+			"rep\n\t"
+			"movsb\n\t"
+			"cld"
+			: "=&c" (d0), "=&S" (d1), "=&D" (d2)
+			:"0" (n),
+			 "1" (n-1+(const char *)src),
+			 "2" (n-1+(char *)dest)
+			:"memory");
+	}
+	return dest;
 }
 
 extern inline int memcmp(const void * cs,const void * ct,int count)
 {
-register int __res __asm__("ax");
+register int __res;// __asm__("ax");
 __asm__("cld\n\t"
 	"repe\n\t"
 	"cmpsb\n\t"
@@ -372,33 +398,37 @@
 	"negl %%eax\n"
 	"1:"
 	:"=a" (__res):"0" (0),"D" (cs),"S" (ct),"c" (count)
-	:"si","di","cx");
+	/*:"si","di","cx"*/); /* TODO : constraint may be wrong*/
 return __res;
 }
 
 extern inline void * memchr(const void * cs,char c,int count)
 {
-register void * __res __asm__("di");
+int d0;
+register void * __res;
 if (!count)
 	return NULL;
-__asm__("cld\n\t"
+__asm__ __volatile__("cld\n\t"
 	"repne\n\t"
 	"scasb\n\t"
 	"je 1f\n\t"
 	"movl $1,%0\n"
 	"1:\tdecl %0"
-	:"=D" (__res):"a" (c),"D" (cs),"c" (count)
-	:"cx");
+	:"=D" (__res), "=&c" (d0)
+	:"a" (c),"0" (cs),"1" (count)
+	:"memory");
 return __res;
 }
 
 extern inline void * memset(void * s,char c,int count)
 {
-__asm__("cld\n\t"
+int d0, d1;
+__asm__ __volatile__("cld\n\t"
 	"rep\n\t"
 	"stosb"
-	::"a" (c),"D" (s),"c" (count)
-	:"cx","di");
+	: "=&c" (d0), "=&D" (d1)
+	:"a" (c),"1" (s),"0" (count)
+	:"memory");
 return s;
 }
 
diff -Naur linux-0.01-rm-1.7/kernel/asm.s linux-0.01-rm-2.0/kernel/asm.s
--- linux-0.01-rm-1.7/kernel/asm.s	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/asm.s	2007-11-26 21:50:47.000000000 +0100
@@ -5,13 +5,13 @@
  * the fpu must be properly saved/resored. This hasn't been tested.
  */
 
-.globl _divide_error,_debug,_nmi,_int3,_overflow,_bounds,_invalid_op
-.globl _device_not_available,_double_fault,_coprocessor_segment_overrun
-.globl _invalid_TSS,_segment_not_present,_stack_segment
-.globl _general_protection,_coprocessor_error,_reserved
+.globl divide_error,debug,nmi,int3,overflow,bounds,invalid_op
+.globl device_not_available,double_fault,coprocessor_segment_overrun
+.globl invalid_TSS,segment_not_present,stack_segment
+.globl general_protection,coprocessor_error,reserved
 
-_divide_error:
-	pushl $_do_divide_error
+divide_error:
+	pushl $do_divide_error
 no_error_code:
 	xchgl %eax,(%esp)
 	pushl %ebx
@@ -44,69 +44,69 @@
 	popl %eax
 	iret
 
-_debug:
-	pushl $_do_int3		# _do_debug
+debug:
+	pushl $do_int3		# _do_debug
 	jmp no_error_code
 
-_nmi:
-	pushl $_do_nmi
+nmi:
+	pushl $do_nmi
 	jmp no_error_code
 
-_int3:
-	pushl $_do_int3
+int3:
+	pushl $do_int3
 	jmp no_error_code
 
-_overflow:
-	pushl $_do_overflow
+overflow:
+	pushl $do_overflow
 	jmp no_error_code
 
-_bounds:
-	pushl $_do_bounds
+bounds:
+	pushl $do_bounds
 	jmp no_error_code
 
-_invalid_op:
-	pushl $_do_invalid_op
+invalid_op:
+	pushl $do_invalid_op
 	jmp no_error_code
 
 math_emulate:
 	popl %eax
-	pushl $_do_device_not_available
+	pushl $do_device_not_available
 	jmp no_error_code
-_device_not_available:
+device_not_available:
 	pushl %eax
 	movl %cr0,%eax
 	bt $2,%eax			# EM (math emulation bit)
 	jc math_emulate
 	clts				# clear TS so that we can use math
-	movl _current,%eax
-	cmpl _last_task_used_math,%eax
+	movl current,%eax
+	cmpl last_task_used_math,%eax
 	je 1f				# shouldn't happen really ...
 	pushl %ecx
 	pushl %edx
 	push %ds
 	movl $0x10,%eax
 	mov %ax,%ds
-	call _math_state_restore
+	call math_state_restore
 	pop %ds
 	popl %edx
 	popl %ecx
 1:	popl %eax
 	iret
 
-_coprocessor_segment_overrun:
-	pushl $_do_coprocessor_segment_overrun
+coprocessor_segment_overrun:
+	pushl $do_coprocessor_segment_overrun
 	jmp no_error_code
 
-_reserved:
-	pushl $_do_reserved
+reserved:
+	pushl $do_reserved
 	jmp no_error_code
 
-_coprocessor_error:
-	pushl $_do_coprocessor_error
+coprocessor_error:
+	pushl $do_coprocessor_error
 	jmp no_error_code
 
-_double_fault:
-	pushl $_do_double_fault
+double_fault:
+	pushl $do_double_fault
 error_code:
 	xchgl %eax,4(%esp)		# error code <-> %eax
 	xchgl %ebx,(%esp)		# &function <-> %ebx
@@ -139,19 +139,19 @@
 	popl %eax
 	iret
 
-_invalid_TSS:
-	pushl $_do_invalid_TSS
+invalid_TSS:
+	pushl $do_invalid_TSS
 	jmp error_code
 
-_segment_not_present:
-	pushl $_do_segment_not_present
+segment_not_present:
+	pushl $do_segment_not_present
 	jmp error_code
 
-_stack_segment:
-	pushl $_do_stack_segment
+stack_segment:
+	pushl $do_stack_segment
 	jmp error_code
 
-_general_protection:
-	pushl $_do_general_protection
+general_protection:
+	pushl $do_general_protection
 	jmp error_code
 
diff -Naur linux-0.01-rm-1.7/kernel/console.c linux-0.01-rm-2.0/kernel/console.c
--- linux-0.01-rm-1.7/kernel/console.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/console.c	2008-01-01 14:07:40.000000000 +0100
@@ -71,59 +71,69 @@
 		pos += columns<<1;
 		scr_end += columns<<1;
 		if (scr_end>SCREEN_END) {
-			__asm__("cld\n\t"
+			
+			int d0,d1,d2,d3;
+			__asm__ __volatile("cld\n\t"
 				"rep\n\t"
 				"movsl\n\t"
-				"movl _columns,%1\n\t"
+				"movl columns,%1\n\t"
 				"rep\n\t"
 				"stosw"
-				::"a" (0x0720),
-				"c" ((lines-1)*columns>>1),
-				"D" (SCREEN_START),
-				"S" (origin)
-				:"cx","di","si");
+				:"=&a" (d0), "=&c" (d1), "=&D" (d2), "=&S" (d3)
+				:"0" (0x0720),
+				 "1" ((lines-1)*columns>>1),
+				 "2" (SCREEN_START),
+				 "3" (origin)
+				:"memory");
+
 			scr_end -= origin-SCREEN_START;
 			pos -= origin-SCREEN_START;
 			origin = SCREEN_START;
 		} else {
-			__asm__("cld\n\t"
+			int d0,d1,d2;
+			__asm__ __volatile("cld\n\t"
 				"rep\n\t"
 				"stosl"
-				::"a" (0x07200720),
-				"c" (columns>>1),
-				"D" (scr_end-(columns<<1))
-				:"cx","di");
+				:"=&a" (d0), "=&c" (d1), "=&D" (d2) 
+				:"0" (0x07200720),
+				"1" (columns>>1),
+				"2" (scr_end-(columns<<1))
+				:"memory");
 		}
 		set_origin();
 	} else {
-		__asm__("cld\n\t"
+		int d0,d1,d2,d3;
+		__asm__ __volatile__("cld\n\t"
 			"rep\n\t"
 			"movsl\n\t"
-			"movl _columns,%%ecx\n\t"
+			"movl columns,%%ecx\n\t"
 			"rep\n\t"
 			"stosw"
-			::"a" (0x0720),
-			"c" ((bottom-top-1)*columns>>1),
-			"D" (origin+(columns<<1)*top),
-			"S" (origin+(columns<<1)*(top+1))
-			:"cx","di","si");
+			:"=&a" (d0), "=&c" (d1), "=&D" (d2), "=&S" (d3)
+			:"0" (0x0720),
+			"1" ((bottom-top-1)*columns>>1),
+			"2" (origin+(columns<<1)*top),
+			"3" (origin+(columns<<1)*(top+1))
+			:"memory");
 	}
 }
 
 static void scrdown(void)
 {
-	__asm__("std\n\t"
+	int d0,d1,d2,d3;
+	__asm__ __volatile__("std\n\t"
 		"rep\n\t"
 		"movsl\n\t"
 		"addl $2,%%edi\n\t"	/* %edi has been decremented by 4 */
-		"movl _columns,%%ecx\n\t"
+		"movl columns,%%ecx\n\t"
 		"rep\n\t"
 		"stosw"
-		::"a" (0x0720),
-		"c" ((bottom-top-1)*columns>>1),
-		"D" (origin+(columns<<1)*bottom-4),
-		"S" (origin+(columns<<1)*(bottom-1)-4)
-		:"ax","cx","di","si");
+		:"=&a" (d0), "=&c" (d1), "=&D" (d2), "=&S" (d3)
+		:"0" (0x0720),
+		"1" ((bottom-top-1)*columns>>1),
+		"2" (origin+(columns<<1)*bottom-4),
+		"3" (origin+(columns<<1)*(bottom-1)-4)
+		:"memory");
 }
 
 static void lf(void)
@@ -163,8 +173,8 @@
 
 static void csi_J(int par)
 {
-	long count __asm__("cx");
-	long start __asm__("di");
+	long count;
+	long start;
 
 	switch (par) {
 		case 0:	/* erase from cursor to end of display */
@@ -182,18 +192,19 @@
 		default:
 			return;
 	}
-	__asm__("cld\n\t"
+	int d0,d1,d2;
+	__asm__ __volatile__("cld\n\t"
 		"rep\n\t"
 		"stosw\n\t"
-		::"c" (count),
-		"D" (start),"a" (0x0720)
-		:"cx","di");
+		:"=&c" (d0), "=&D" (d1), "=&a" (d2)
+		:"0" (count),"1" (start),"2" (0x0720)
+		:"memory");
 }
 
 static void csi_K(int par)
 {
-	long count __asm__("cx");
-	long start __asm__("di");
+	long count;
+	long start;
 
 	switch (par) {
 		case 0:	/* erase from cursor to end of line */
@@ -213,12 +224,13 @@
 		default:
 			return;
 	}
-	__asm__("cld\n\t"
+	int d0,d1,d2;
+	__asm__ __volatile__("cld\n\t"
 		"rep\n\t"
 		"stosw\n\t"
-		::"c" (count),
-		"D" (start),"a" (0x0720)
-		:"cx","di");
+		:"=&c" (d0), "=&D" (d1), "=&a" (d2)
+		:"0" (count),"1" (start),"2" (0x0720)
+		:"memory");
 }
 
 void csi_m(void)
@@ -385,10 +397,10 @@
 						pos -= columns<<1;
 						lf();
 					}
-					__asm__("movb _attr,%%ah\n\t"
+					__asm__("movb attr,%%ah\n\t"
 						"movw %%ax,%1\n\t"
 						::"a" (c),"m" (*(short *)pos)
-						:"ax");
+						/*:"ax"*/);
 					pos += 2;
 					x++;
 				} else if (c==27)
@@ -438,7 +450,7 @@
 					par[npar]=0;
 				npar=0;
 				state=3;
-				if (ques=(c=='?'))
+				if ((ques=(c=='?')))
 					break;
 			case 3:
 				if (c==';' && npar<NPAR-1) {
diff -Naur linux-0.01-rm-1.7/kernel/hd.c linux-0.01-rm-2.0/kernel/hd.c
--- linux-0.01-rm-1.7/kernel/hd.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/hd.c	2007-12-23 18:52:56.000000000 +0100
@@ -66,10 +66,10 @@
 void hd_init(void);
 
 #define port_read(port,buf,nr) \
-__asm__("cld;rep;insw"::"d" (port),"D" (buf),"c" (nr):"cx","di")
+__asm__("cld;rep;insw"::"d" (port),"D" (buf),"c" (nr)/*:"cx","di"*/)
 
 #define port_write(port,buf,nr) \
-__asm__("cld;rep;outsw"::"d" (port),"S" (buf),"c" (nr):"cx","si")
+__asm__("cld;rep;outsw"::"d" (port),"S" (buf),"c" (nr)/*:"cx","si"*/)
 
 extern void hd_interrupt(void);
 
diff -Naur linux-0.01-rm-1.7/kernel/keyboard.s linux-0.01-rm-2.0/kernel/keyboard.s
--- linux-0.01-rm-1.7/kernel/keyboard.s	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/keyboard.s	2007-11-26 22:06:55.000000000 +0100
@@ -3,7 +3,7 @@
  */
 
 .text
-.globl _keyboard_interrupt
+.globl keyboard_interrupt
 
 /*
  * these are for the keyboard read functions
@@ -24,7 +24,7 @@
  *  keyboard scan-code and converts it into the appropriate
  *  ascii character(s).
  */
-_keyboard_interrupt:
+keyboard_interrupt:
 	pushl %eax
 	pushl %ebx
 	pushl %ecx
@@ -34,13 +34,13 @@
 	movl $0x10,%eax
 	mov %ax,%ds
 	mov %ax,%es
-	xorl %al,%al		/* %eax is scan code */
+	xor %al,%al		/* %eax is scan code */
 	inb $0x60,%al
 	cmpb $0xe0,%al
 	je set_e0
 	cmpb $0xe1,%al
 	je set_e1
-	call key_table(,%eax,4)
+	call *key_table(,%eax,4)
 	movb $0,e0
 e0_e1:	inb $0x61,%al
 	jmp 1f
@@ -56,7 +56,7 @@
 	movb $0x20,%al
 	outb %al,$0x20
 	pushl $0
-	call _do_tty_interrupt
+	call do_tty_interrupt
 	addl $4,%esp
 	pop %es
 	pop %ds
@@ -78,7 +78,7 @@
 put_queue:
 	pushl %ecx
 	pushl %edx
-	movl _table_list,%edx		# read-queue for console
+	movl table_list,%edx		# read-queue for console
 	movl head(%edx),%ecx
 1:	movb %al,buf(%edx,%ecx)
 	incl %ecx
diff -Naur linux-0.01-rm-1.7/kernel/Makefile linux-0.01-rm-2.0/kernel/Makefile
--- linux-0.01-rm-1.7/kernel/Makefile	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/Makefile	2007-11-25 22:36:08.000000000 +0100
@@ -6,12 +6,12 @@
 # unless it's something special (ie not a .c file).
 #
 
-AR	=gar
-AS	=gas
-LD	=gld
+AR	=ar
+AS	=as
+LD	=ld
 LDFLAGS	=-s -x
 CC	=gcc
-CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer -fcombine-regs \
+CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer  \
 	-finline-functions  -nostdinc -I../include
 CPP	=gcc -E -nostdinc -I../include
 
@@ -19,7 +19,7 @@
 	$(CC) $(CFLAGS) \
 	-S -o $*.s $<
 .s.o:
-	$(AS) -c -o $*.o $<
+	$(AS) -o $*.o $<
 .c.o:
 	$(CC) $(CFLAGS) \
 	-c -o $*.o $<
diff -Naur linux-0.01-rm-1.7/kernel/panic.c linux-0.01-rm-2.0/kernel/panic.c
--- linux-0.01-rm-1.7/kernel/panic.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/panic.c	2007-11-26 20:12:01.000000000 +0100
@@ -4,7 +4,7 @@
  */
 #include <linux/kernel.h>
 
-volatile void panic(const char * s)
+void panic(const char * s)
 {
 	printk("Kernel panic: %s\n\r",s);
 	for(;;);
diff -Naur linux-0.01-rm-1.7/kernel/printk.c linux-0.01-rm-2.0/kernel/printk.c
--- linux-0.01-rm-1.7/kernel/printk.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/printk.c	2007-11-26 21:48:24.000000000 +0100
@@ -22,9 +22,9 @@
 		"push %%ds\n\t"
 		"pop %%fs\n\t"
 		"pushl %0\n\t"
-		"pushl $_buf\n\t"
+		"pushl $buf\n\t"
 		"pushl $0\n\t"
-		"call _tty_write\n\t"
+		"call tty_write\n\t"
 		"addl $8,%%esp\n\t"
 		"popl %0\n\t"
 		"pop %%fs"
diff -Naur linux-0.01-rm-1.7/kernel/rs_io.s linux-0.01-rm-2.0/kernel/rs_io.s
--- linux-0.01-rm-1.7/kernel/rs_io.s	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/rs_io.s	2007-11-26 22:07:38.000000000 +0100
@@ -5,7 +5,7 @@
  */
 
 .text
-.globl _rs1_interrupt,_rs2_interrupt
+.globl rs1_interrupt,rs2_interrupt
 
 size	= 1024				/* must be power of two !
 					   and must match the value
@@ -25,12 +25,12 @@
  * the interrupt is coming from, and take appropriate action.
  */
 .align 2
-_rs1_interrupt:
-	pushl $_table_list+8
+rs1_interrupt:
+	pushl $table_list+8
 	jmp rs_int
 .align 2
-_rs2_interrupt:
-	pushl $_table_list+16
+rs2_interrupt:
+	pushl $table_list+16
 rs_int:
 	pushl %edx
 	pushl %ecx
@@ -56,7 +56,7 @@
 	movl 24(%esp),%ecx
 	pushl %edx
 	subl $2,%edx
-	call jmp_table(,%eax,2)		/* NOTE! not *4, bit0 is 0 already */
+	call *jmp_table(,%eax,2)		/* NOTE! not *4, bit0 is 0 already */
 	popl %edx
 	jmp rep_int
 end:	movb $0x20,%al
@@ -89,7 +89,7 @@
 read_char:
 	inb %dx,%al
 	movl %ecx,%edx
-	subl $_table_list,%edx
+	subl $table_list,%edx
 	shrl $3,%edx
 	movl (%ecx),%ecx		# read-queue
 	movl head(%ecx),%ebx
@@ -100,7 +100,7 @@
 	je 1f
 	movl %ebx,head(%ecx)
 	pushl %edx
-	call _do_tty_interrupt
+	call do_tty_interrupt
 	addl $4,%esp
 1:	ret
 
diff -Naur linux-0.01-rm-1.7/kernel/system_call.s linux-0.01-rm-2.0/kernel/system_call.s
--- linux-0.01-rm-1.7/kernel/system_call.s	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/kernel/system_call.s	2007-11-26 22:06:58.000000000 +0100
@@ -47,7 +47,7 @@
 
 nr_system_calls = 67
 
-.globl _system_call,_sys_fork,_timer_interrupt,_hd_interrupt,_sys_execve
+.globl system_call,sys_fork,timer_interrupt,hd_interrupt,sys_execve
 
 .align 2
 bad_sys_call:
@@ -56,9 +56,9 @@
 .align 2
 reschedule:
 	pushl $ret_from_sys_call
-	jmp _schedule
+	jmp schedule
 .align 2
-_system_call:
+system_call:
 	cmpl $nr_system_calls-1,%eax
 	ja bad_sys_call
 	push %ds
@@ -72,16 +72,16 @@
 	mov %dx,%es
 	movl $0x17,%edx		# fs points to local data space
 	mov %dx,%fs
-	call _sys_call_table(,%eax,4)
+	call *sys_call_table(,%eax,4)
 	pushl %eax
-	movl _current,%eax
+	movl current,%eax
 	cmpl $0,state(%eax)		# state
 	jne reschedule
 	cmpl $0,counter(%eax)		# counter
 	je reschedule
 ret_from_sys_call:
-	movl _current,%eax		# task[0] cannot have signals
-	cmpl _task,%eax
+	movl current,%eax		# task[0] cannot have signals
+	cmpl task,%eax
 	je 3f
 	movl CS(%esp),%ebx		# was old code segment supervisor
 	testl $3,%ebx			# mode? If so - don't check signals
@@ -106,7 +106,7 @@
 	pushl %ecx
 	pushl $28
 	pushl %edx
-	call _verify_area
+	call verify_area
 	popl %edx
 	addl $4,%esp
 	popl %ecx
@@ -137,12 +137,12 @@
 	cmpl $SIG_CHLD,%ecx
 	je 2b
 	pushl %ecx
-	call _do_exit		# remember to set bit 7 when dumping core
+	call do_exit		# remember to set bit 7 when dumping core
 	addl $4,%esp
 	jmp 3b
 
 .align 2
-_timer_interrupt:
+timer_interrupt:
 	push %ds		# save ds,es and put kernel data space
 	push %es		# into them. %fs is used by _system_call
 	push %fs
@@ -155,27 +155,27 @@
 	mov %ax,%es
 	movl $0x17,%eax
 	mov %ax,%fs
-	incl _jiffies
+	incl jiffies
 	movb $0x20,%al		# EOI to interrupt controller #1
 	outb %al,$0x20
 	movl CS(%esp),%eax
 	andl $3,%eax		# %eax is CPL (0 or 3, 0=supervisor)
 	pushl %eax
-	call _do_timer		# 'do_timer(long CPL)' does everything from
+	call do_timer		# 'do_timer(long CPL)' does everything from
 	addl $4,%esp		# task switching to accounting ...
 	jmp ret_from_sys_call
 
 .align 2
-_sys_execve:
+sys_execve:
 	lea EIP(%esp),%eax
 	pushl %eax
-	call _do_execve
+	call do_execve
 	addl $4,%esp
 	ret
 
 .align 2
-_sys_fork:
-	call _find_empty_process
+sys_fork:
+	call find_empty_process
 	testl %eax,%eax
 	js 1f
 	push %gs
@@ -183,11 +183,11 @@
 	pushl %edi
 	pushl %ebp
 	pushl %eax
-	call _copy_process
+	call copy_process
 	addl $20,%esp
 1:	ret
 
-_hd_interrupt:
+hd_interrupt:
 	pushl %eax
 	pushl %ecx
 	pushl %edx
@@ -204,10 +204,10 @@
 	jmp 1f			# give port chance to breathe
 1:	jmp 1f
 1:	outb %al,$0xA0		# same to controller #2
-	movl _do_hd,%eax
+	movl do_hd,%eax
 	testl %eax,%eax
 	jne 1f
-	movl $_unexpected_hd_interrupt,%eax
+	movl $unexpected_hd_interrupt,%eax
 1:	call *%eax		# "interesting" way of handling intr.
 	pop %fs
 	pop %es
diff -Naur linux-0.01-rm-1.7/lib/Makefile linux-0.01-rm-2.0/lib/Makefile
--- linux-0.01-rm-1.7/lib/Makefile	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/lib/Makefile	2007-11-26 21:06:50.000000000 +0100
@@ -6,12 +6,12 @@
 # unless it's something special (ie not a .c file).
 #
 
-AR	=gar
-AS	=gas
-LD	=gld
+AR	=ar
+AS	=as
+LD	=ld
 LDFLAGS	=-s -x
 CC	=gcc
-CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer -fcombine-regs \
+CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer \
 	-finline-functions  -nostdinc -I../include
 CPP	=gcc -E -nostdinc -I../include
 
@@ -19,7 +19,7 @@
 	$(CC) $(CFLAGS) \
 	-S -o $*.s $<
 .s.o:
-	$(AS) -c -o $*.o $<
+	$(AS) -o $*.o $<
 .c.o:
 	$(CC) $(CFLAGS) \
 	-c -o $*.o $<
diff -Naur linux-0.01-rm-1.7/Makefile linux-0.01-rm-2.0/Makefile
--- linux-0.01-rm-1.7/Makefile	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/Makefile	2007-12-23 19:28:48.000000000 +0100
@@ -8,11 +8,11 @@
 CC86	=cc86 -0
 LD86	=ld86 -0
 
-AS	=gas
-LD	=gld
-LDFLAGS	=-s -x -M
+AS	=as
+LD	=ld
+LDFLAGS	=-s -x -M -Ttext 0 -e startup_32
 CC	=gcc
-CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer -fcombine-regs
+CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer -fwritable-strings 
 CPP	=gcc -E -nostdinc -Iinclude
 
 ARCHIVES=kernel/kernel.o mm/mm.o fs/fs.o
@@ -22,7 +22,7 @@
 	$(CC) $(CFLAGS) \
 	-nostdinc -Iinclude -S -o $*.s $<
 .s.o:
-	$(AS) -c -o $*.o $<
+	$(AS) -o $*.o $<
 .c.o:
 	$(CC) $(CFLAGS) \
 	-nostdinc -Iinclude -c -o $*.o $<
@@ -30,13 +30,13 @@
 all:	Image
 
 Image: boot/boot tools/system tools/build
-	tools/build boot/boot tools/system > Image
+	objcopy  -O binary -R .note -R .comment tools/system tools/system.bin
+	tools/build boot/boot tools/system.bin > Image
 #	sync
 
 tools/build: tools/build.c
-	sh build_tools
-#	$(CC) $(CFLAGS) \
-#	-o tools/build tools/build.c
+	$(CC) $(CFLAGS) \
+	-o tools/build tools/build.c
 	#chmem +65000 tools/build
 
 boot/head.o: boot/head.s
@@ -70,7 +70,7 @@
 
 clean:
 	rm -f Image System.map tmp_make boot/boot core
-	rm -f init/*.o boot/*.o tools/system tools/build
+	rm -f init/*.o boot/*.o tools/system tools/build tools/system.bin
 	(cd mm;make clean)
 	(cd fs;make clean)
 	(cd kernel;make clean)
diff -Naur linux-0.01-rm-1.7/mm/Makefile linux-0.01-rm-2.0/mm/Makefile
--- linux-0.01-rm-1.7/mm/Makefile	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/mm/Makefile	2007-11-26 20:39:26.000000000 +0100
@@ -1,9 +1,9 @@
 CC	=gcc
-CFLAGS	=-O -Wall -fstrength-reduce -fcombine-regs -fomit-frame-pointer \
+CFLAGS	=-O -Wall -fstrength-reduce  -fomit-frame-pointer \
 	-finline-functions -nostdinc -I../include
-AS	=gas
-AR	=gar
-LD	=gld
+AS	=as
+AR	=ar
+LD	=ld
 CPP	=gcc -E -nostdinc -I../include
 
 .c.o:
diff -Naur linux-0.01-rm-1.7/mm/memory.c linux-0.01-rm-2.0/mm/memory.c
--- linux-0.01-rm-1.7/mm/memory.c	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/mm/memory.c	2007-11-26 20:38:54.000000000 +0100
@@ -26,7 +26,7 @@
 #endif
 
 #define copy_page(from,to) \
-__asm__("cld ; rep ; movsl"::"S" (from),"D" (to),"c" (1024):"cx","di","si")
+__asm__("cld ; rep ; movsl"::"S" (from),"D" (to),"c" (1024)/*:"cx","di","si"*/)
 
 static unsigned short mem_map [ PAGING_PAGES ] = {0,};
 
@@ -36,7 +36,7 @@
  */
 unsigned long get_free_page(void)
 {
-register unsigned long __res asm("ax");
+register unsigned long __res;// asm("ax");
 
 __asm__("std ; repne ; scasw\n\t"
 	"jne 1f\n\t"
@@ -52,7 +52,7 @@
 	:"=a" (__res)
 	:"0" (0),"i" (LOW_MEM),"c" (PAGING_PAGES),
 	"D" (mem_map+PAGING_PAGES-1)
-	:"di","cx","dx");
+	:/*"di","cx",*/"dx");
 return __res;
 }
 
diff -Naur linux-0.01-rm-1.7/mm/page.s linux-0.01-rm-2.0/mm/page.s
--- linux-0.01-rm-1.7/mm/page.s	2007-12-23 19:00:53.000000000 +0100
+++ linux-0.01-rm-2.0/mm/page.s	2007-11-26 21:59:33.000000000 +0100
@@ -3,9 +3,9 @@
  * the real work is done in mm.c
  */
 
-.globl _page_fault
+.globl page_fault
 
-_page_fault:
+page_fault:
 	xchgl %eax,(%esp)
 	pushl %ecx
 	pushl %edx
@@ -21,9 +21,9 @@
 	pushl %eax
 	testl $1,%eax
 	jne 1f
-	call _do_no_page
+	call do_no_page
 	jmp 2f
-1:	call _do_wp_page
+1:	call do_wp_page
 2:	addl $8,%esp
 	pop %fs
 	pop %es
diff -Naur linux-0.01-rm-1.7/tools/build.c linux-0.01-rm-2.0/tools/build.c
--- linux-0.01-rm-1.7/tools/build.c	2007-12-23 19:16:33.000000000 +0100
+++ linux-0.01-rm-2.0/tools/build.c	2007-12-23 19:26:15.000000000 +0100
@@ -55,10 +55,10 @@
 	
 	if ((id=open(argv[2],O_RDONLY,0))<0)
 		die("Unable to open 'system'");
-	if (read(id,buf,GCC_HEADER) != GCC_HEADER)
-		die("Unable to read header of 'system'");
-	if (((long *) buf)[5] != 0)
-		die("Non-GCC header of 'system'");
+//	if (read(id,buf,GCC_HEADER) != GCC_HEADER)
+//		die("Unable to read header of 'system'");
+//	if (((long *) buf)[5] != 0)
+//		die("Non-GCC header of 'system'");
 	for (i=0 ; (c=read(id,buf,sizeof buf))>0 ; i+=c )
 		if (write(1,buf,c)!=c)
 			die("Write call failed");