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view src/asmops.h @ 38:e6f75f91e606

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- added makefile pattern to produce assembly output from c source files. - removed a commented out previous version of the gmtime_r function in klibc/time.c
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 10 Jun 2011 23:19:25 +0300
parents b11a86695493
children e6de3c6015cb
line source
1 #ifndef ASMOPS_H_
2 #define ASMOPS_H_
3
4 #define enable_intr() asm volatile("sti")
5 #define disable_intr() asm volatile("cli")
6 #define halt_cpu() asm volatile("hlt")
7
8 #define inb(dest, port) asm volatile( \
9 "inb %1, %0\n\t" \
10 : "=a" ((unsigned char)(dest)) \
11 : "dN" ((unsigned short)(port)))
12
13 #define inw(dest, port) asm volatile( \
14 "inw %1, %0\n\t" \
15 : "=a" ((unsigned short)(dest)) \
16 : "dN" ((unsigned short)(port)))
17
18 #define inl(dest, port) asm volatile( \
19 "inl %1, %0\n\t" \
20 : "=a" ((unsigned long)(dest)) \
21 : "dN" ((unsigned short)(port)))
22
23 #define outb(src, port) asm volatile( \
24 "outb %0, %1\n\t" \
25 :: "a" ((unsigned char)(src)), "dN" ((unsigned short)(port)))
26
27 #define outw(src, port) asm volatile( \
28 "outw %0, %1\n\t" \
29 :: "a" ((unsigned short)(src)), "dN" ((unsigned short)(port)))
30
31 #define outl(src, port) asm volatile( \
32 "outl %0, %1\n\t" \
33 :: "a" ((unsigned long)(src)), "dN" ((unsigned short)(port)))
34
35 #define iodelay() outb(0, 0x80)
36
37 #endif /* ASMOPS_H_ */