Gert van der Knokke
/
C1541III
C1541-III mbed edition
main.h
- Committer:
- gertk
- Date:
- 2011-08-22
- Revision:
- 1:0cbbb66a6100
- Parent:
- 0:28557a4d2215
File content as of revision 1:0cbbb66a6100:
#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