Diff: main.h

Revision:

0:28557a4d2215

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h	Mon Aug 22 05:48:51 2011 +0000
@@ -0,0 +1,44 @@
+#ifndef _MAIN_H_INCLUDED
+#define _MAIN_H_INCLUDED
+
+/*constants*/
+#define        MAX_NUMBER_OF_DOS_BUFFERS    5        /*the maximum numbers of available buffers within this device*/
+
+/*structures*/
+struct    DOS_buffer_struct
+{
+    unsigned char    buffer_in_use;                /*this flag indicates wether the buffer is allready in use*/            
+    unsigned char    buffer[256];                /*the buffer capable of holding a complete block*/
+};
+
+struct    DOS_channel_struct
+{
+    unsigned char    channel_in_use;                /*this flag indicates wether this channel is allready in use*/
+    unsigned char    next_action;                /*this holds the next action (if nothing interupts it) for this channel*/
+    unsigned char    filename[17];                /*the actual filename, as it is stored on the disk*/
+    unsigned char    filetype;                    /*filetype can be sequential, program, user, etc.*/
+    unsigned char    RW;                            /*file read or write*/
+    unsigned char    track;                        /*the current track position on the disk regarding this file*/
+    unsigned char    sector;                        /*the current sector position on the disk regarding this file*/
+    unsigned char    buffer_pointer;                /*the current byte position within the block specified by track and sector on the disk regarding this file*/
+    unsigned char    used_buffer;                /*this register holds the value of the connected buffer (if required)*/
+    unsigned char    status;                        /*the current status of this file entry in the sa_DOS_buffer*/
+};
+
+/*variables*/
+extern unsigned char    RAM_buffer[256];        /*this is the buffer capable of holding one 256 byte block, a memory area to which the user or the 1541-III can write/read data to/from*/
+//extern unsigned char    BAM_buffer[162];        /*this buffer holds the Block Allocation Map, required for when we want to write to the D64 (max 40 tracks)*/
+extern unsigned char     block_buffer[512];        /*this buffers the data 'as read from' or 'to be written to' the card*/
+extern struct            DOS_buffer_struct    DOS_buffer[MAX_NUMBER_OF_DOS_BUFFERS];    /*this array of structs holds the information about the currently used buffers*/
+extern struct            DOS_channel_struct    DOS_channel[16];    /*this array of structs holds this information about the currently used channels*/
+
+extern unsigned char Card_CID(void);
+extern unsigned char Card_CSD(void);
+
+/*routines*/
+/*--------*/
+// void delay_10uS(unsigned long delay);
+
+//void CLRWDT();
+
+#endif