Import backup from 2005-08-25

kernel/lang/lang.asm

@@ -11,6 +11,13 @@
 
 %endmacro
 
+;returns the value in the CR0 register
+;extern dword read_cr0();
+[global _read_cr0]
+_read_cr0:
+	mov	eax, cr0;
+	ret
+
 ;stores the parameter to the CR0 register
 ;extern dword write_cr0(dword cr0);
 [global _write_cr0]
@@ -22,25 +29,6 @@ _write_cr0:
 	pop	ebp
 	ret
 
-;returns the value in the CR0 register
-;extern dword read_cr0();
-[global _read_cr0]
-_read_cr0:
-	mov	eax, cr0;
-	ret
-
-;stores the parameter to the CR3 register
-;extern dword write_cr3(dword cr3);
-[global _write_cr3]
-_write_cr3:
-	push	ebp
-	mov	ebp, esp
-	mov	eax, [ebp+8]
-	mov	cr3, eax
-	pop	ebp
-	ret
-
-
 ;returns the value in the CR2 register
 ;extern dword read_cr2();
 [global _read_cr2]
@@ -58,6 +46,24 @@ _read_cr3:
 	ret
 
 
+;stores the parameter to the CR3 register
+;extern dword write_cr3(dword cr3);
+[global _write_cr3]
+_write_cr3:
+	push	ebp
+	mov	ebp, esp
+	mov	eax, [ebp+8]
+	mov	cr3, eax
+	pop	ebp
+	ret
+
+
+; read ss register
+[global _read_ss]
+_read_ss:
+	mov	ax, ss
+	ret
+
 
 ;copies a string from the source to the destination parameter
 ;extern void strcpy(char *dest, char *src);

kernel/lang/lang.h

@@ -9,11 +9,12 @@
 #include "hos_defines.h"
 
 /* lang.asm */
-u32_t write_cr0(u32_t cr0);
 u32_t read_cr0();
-u32_t write_cr3(u32_t cr3);
+u32_t write_cr0(u32_t cr0);
 u32_t read_cr2();
 u32_t read_cr3();
+u32_t write_cr3(u32_t cr3);
+u32_t read_ss();
 void writeCursorPosition(u32_t pos);
 u32_t getCursorPosition();
 void strcpy(char *dest, const char *src);