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authorDanny Holman <dholman@gymli.xyz>2021-01-24 21:10:57 -0600
committerDanny Holman <dholman@gymli.xyz>2021-01-24 21:10:57 -0600
commita4534660fecb1b571c24ad82e67bc6c2fb814cb9 (patch)
tree149984cb0e9a32765e63df0f696091817c2b6dd5 /arch/i386/kernel/pic.h
parentdd6656f7132d1727a055035ca94945fa4fbaae58 (diff)
x86: reorganize the i386 directory
Add structure to the internals of the x86 directory. Signed-off-by: Danny Holman <dholman@gymli.xyz>
Diffstat (limited to 'arch/i386/kernel/pic.h')
-rw-r--r--arch/i386/kernel/pic.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/i386/kernel/pic.h b/arch/i386/kernel/pic.h
new file mode 100644
index 0000000..da4a2ee
--- /dev/null
+++ b/arch/i386/kernel/pic.h
@@ -0,0 +1,16 @@
+#ifndef PIC_H
+#define PIC_H
+
+#include <stdint.h>
+
+static inline void outb(uint16_t port, uint8_t value) {
+ asm volatile("outb %0, %1" : : "a"(value), "Nd"(port));
+}
+
+static inline uint8_t inb(uint16_t port) {
+ uint8_t ret;
+ asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
+ return ret;
+}
+
+#endif