[LinksOS CVS Commit]kernel/hal/prototypes io.h,1.1,1.2

[<ke...@to...>]

Update of /cvsroot/linksos/kernel/hal/prototypes
In directory router-internal.tossell.net:/tmp/cvs-serv31339/hal/prototypes

Modified Files:
	io.h 
Log Message:
Title: C++ Support
Changes: Changed symbol names, command lines, definitions to support c++ building. All g++ calls now include arguments not to include stdlib symbols. Calls to c++ routines in asm call the mangled c++ names, such as _Z7kprintfPc instead of kprintf. io.c's contents are moved into io.h, as inlines are not exported by g++. (Why should they be?) This change breaks portability, which I'll fix next.

Effects: LinksOS can now be compiled as c++ code, with the g++ compiler and the gnu as assembler.

a=kennyt b=19


Index: io.h
===================================================================
RCS file: /cvsroot/linksos/kernel/hal/prototypes/io.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** io.h	4 Jan 2003 08:28:57 -0000	1.1
--- io.h	12 Jan 2003 18:51:06 -0000	1.2
***************
*** 2,8 ****
  #define _IO_H
  
! inline unsigned char inportb(unsigned int port);
! inline void outportb(unsigned int port, unsigned char value);
  
  
! #endif
--- 2,19 ----
  #define _IO_H
  
! inline unsigned char inportb(unsigned int port)         
! {
!   /* Input a byte from a port */
!   unsigned char ret;
!   
!   asm volatile ("inb %%dx,%%al":"=a" (ret):"d" (port));
!   return ret;
! }
  
+ inline void outportb(unsigned int port,unsigned char value)     
+ {
+   /* Output a byte to a port */
+   asm volatile ("outb %%al,%%dx"::"d" (port), "a" (value));
+ }
  
! #endif /* ! _IO_H */