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-rw-r--r--io.asm25
1 files changed, 25 insertions, 0 deletions
diff --git a/io.asm b/io.asm
new file mode 100644
index 0000000..fd45e99
--- /dev/null
+++ b/io.asm
@@ -0,0 +1,25 @@
+section .text
+
+global pio_read
+global pio_write
+
+pio_read:
+ push ebp
+ mov ebp, esp
+
+ mov edx, [esp + 8]
+ in al, dx
+
+ leave
+ ret
+
+pio_write:
+ push ebp
+ mov ebp, esp
+
+ mov edx, [esp + 8]
+ mov al, [esp + 12]
+ out dx, al
+
+ leave
+ ret