New header file from Stefan Haubenthal

git-svn-id: svn://svn.cc65.org/cc65/trunk@2922 b7a2c559-68d2-44c3-8de9-860c34a00d81

diff --git a/include/_6522.h b/include/_6522.h
new file mode 100644 (file)
index 0000000..c68d268
--- /dev/null
+++ b/include/_6522.h
@@ -0,0 +1,64 @@
+/*****************************************************************************/
+/*                                                                           */
+/*                                  _6522.h                                  */
+/*                                                                           */
+/*               Internal include file, do not use directly                 */
+/*                                                                           */
+/*                                                                           */
+/*                                                                           */
+/* (C) 2004 Stefan Haubenthal <polluks@sdf.lonestar.org>                     */
+/*                                                                           */
+/*                                                                           */
+/* This software is provided 'as-is', without any expressed or implied       */
+/* warranty.  In no event will the authors be held liable for any damages    */
+/* arising from the use of this software.                                    */
+/*                                                                           */
+/* Permission is granted to anyone to use this software for any purpose,     */
+/* including commercial applications, and to alter it and redistribute it    */
+/* freely, subject to the following restrictions:                            */
+/*                                                                           */
+/* 1. The origin of this software must not be misrepresented; you must not   */
+/*    claim that you wrote the original software. If you use this software   */
+/*    in a product, an acknowledgment in the product documentation would be  */
+/*    appreciated but is not required.                                       */
+/* 2. Altered source versions must be plainly marked as such, and must not   */
+/*    be misrepresented as being the original software.                      */
+/* 3. This notice may not be removed or altered from any source              */
+/*    distribution.                                                          */
+/*                                                                           */
+/*****************************************************************************/
+
+
+
+#ifndef __VIA_H
+#define __VIA_H
+
+
+
+/* Define a structure with the via register offsets */
+struct __6522 {
+    unsigned char      prb;            /* Port register B */
+    unsigned char      pra;            /* Port register A */
+    unsigned char      ddrb;           /* Data direction register B */
+    unsigned char      ddra;           /* Data direction register A */
+    unsigned char      t1_lo;          /* Timer 1, low byte */
+    unsigned char      t1_hi;          /* Timer 1, high byte */
+    unsigned char      t1l_lo;         /* Timer 1 latch, low byte */
+    unsigned char      t1l_hi;         /* Timer 1 latch, high byte */
+    unsigned char      t2_lo;          /* Timer 2, low byte */
+    unsigned char      t2_hi;          /* Timer 2, high byte */
+    unsigned char      sr;             /* Shift register */
+    unsigned char      acr;            /* Auxiliary control register */
+    unsigned char      pcr;            /* Peripheral control register */
+    unsigned char      ifr;            /* Interrupt flag register */
+    unsigned char      ier;            /* Interrupt enable register */
+    unsigned char      pra2;           /* Port register A w/o handshake */
+};
+
+
+
+/* End of _6522.h */
+#endif
+
+
+