CTAOS v3

SysCore/hal/pic/compile.bat

@@ -0,0 +1,18 @@
+@echo off
+rem The name of the loader assembly file (without extension, must be .asm):
+set loader_name=loader
+
+rem NASM and DJGPP executable paths:
+set nasm_path=C:\nasm
+set djgpp_path=C:\DJGPP\bin
+set objpath=../../objects
+set incpath=../../include
+
+@echo on
+%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/pic.o pic.c 
+
+@echo off
+@echo .
+@echo Done!
+
+@pause

SysCore/hal/pic/pic.c

@@ -0,0 +1,23 @@
+#include <system.h>
+#include "pic.h"
+
+void i86_pic_remap(int pic1, int pic2)
+{
+      // Send ICW1
+      outportb(0x20, 0x11);
+      outportb(0xA0, 0x11);
+      
+      // send ICW2
+      outportb(0x21, pic1); // remap pics
+      outportb(0xA1, pic2);
+      
+      // send ICW3
+      outportb(0x21, 4);
+      outportb(0xA1, 2);
+      
+      // Send ICW4
+      outportb(0x21, 0x01);
+      outportb(0xA1, 0x01);
+      
+      outportb(0x21, 0x00);
+}

SysCore/hal/pic/pic.h

@@ -0,0 +1,6 @@
+#ifndef _PIC_H
+#define _PIC_H
+
+extern void i86_pic_remap(int pic1, int pic2);
+
+#endif