kern

annotate src/asmops.h @ 2:86781ef20689

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added hardware scrolling, memset16 and temporary keyboard input for testing
author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 04 Dec 2010 08:04:43 +0200
parents ebe5e0e44a9d
children b11a86695493
rev   line source
nuclear@1 1 #ifndef ASMOPS_H_
nuclear@1 2 #define ASMOPS_H_
nuclear@1 3
nuclear@1 4 #define inb(dest, port) asm volatile( \
nuclear@1 5 "inb %1, %0\n\t" \
nuclear@2 6 : "=a" ((unsigned char)(dest)) \
nuclear@2 7 : "dN" ((unsigned short)(port)))
nuclear@1 8
nuclear@1 9 #define ins(dest, port) asm volatile( \
nuclear@1 10 "ins %1, %0\n\t" \
nuclear@2 11 : "=a" ((unsigned short)(dest)) \
nuclear@2 12 : "dN" ((unsigned short)(port)))
nuclear@1 13
nuclear@1 14 #define inl(dest, port) asm volatile( \
nuclear@1 15 "inl %1, %0\n\t" \
nuclear@2 16 : "=a" ((unsigned long)(dest)) \
nuclear@2 17 : "dN" ((unsigned short)(port)))
nuclear@1 18
nuclear@1 19 #define outb(src, port) asm volatile( \
nuclear@1 20 "outb %0, %1\n\t" \
nuclear@2 21 :: "a" ((unsigned char)(src)), "dN" ((unsigned short)(port)))
nuclear@1 22
nuclear@1 23 #define outs(src, port) asm volatile( \
nuclear@1 24 "outs %0, %1\n\t" \
nuclear@2 25 :: "a" ((unsigned short)(src)), "dN" ((unsigned short)(port)))
nuclear@1 26
nuclear@1 27 #define outl(src, port) asm volatile( \
nuclear@1 28 "outl %0, %1\n\t" \
nuclear@2 29 :: "a" ((unsigned long)(src)), "dN" ((unsigned short)(port)))
nuclear@1 30
nuclear@1 31 #endif /* ASMOPS_H_ */