Initial submission of the PCem-Experimental source code.

src/memregs.c

@@ -0,0 +1,30 @@
+/*
+	0xE1 and 0xE2 Memory Registers
+	Used by just about any emulated machine
+*/
+
+#include "ibm.h"
+
+#include "io.h"
+#include "memregs.h"
+
+static uint8_t mem_regs[2] = {0xFF, 0xFF};
+
+void memregs_write(uint16_t port, uint8_t val, void *priv)
+{
+	mem_regs[port - 0xE1] = val;
+}
+
+uint8_t memregs_read(uint16_t port, void *priv)
+{
+	return mem_regs[port - 0xE1];
+}
+
+void memregs_init()
+{
+	int i = 0;
+
+	pclog("Memory Registers Init\n");
+
+        io_sethandler(0x00e1, 0x0002, memregs_read, NULL, NULL, memregs_write, NULL, NULL,  NULL);
+}