mirror of
https://github.com/digarok/gsplus.git
synced 2024-12-03 19:49:37 +00:00
124 lines
2.5 KiB
Plaintext
124 lines
2.5 KiB
Plaintext
|
/*
|
||
|
|
GSport - an Apple //gs Emulator
|
||
|
|
Copyright (C) 2010 by GSport contributors
|
||
|
|
|
||
|
|
Based on the KEGS emulator written by and Copyright (C) 2003 Kent Dickey
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify it
|
||
|
|
under the terms of the GNU General Public License as published by the
|
||
|
|
Free Software Foundation; either version 2 of the License, or (at your
|
||
|
|
option) any later version.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful, but
|
||
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
|
for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License along
|
||
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
||
|
|
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define MAX_TRACKS (2*80)
|
||
|
|
#define MAX_C7_DISKS 32
|
||
|
|
|
||
|
|
#define NIB_LEN_525 0x1900 /* 51072 bits per track */
|
||
|
|
#define NIBS_FROM_ADDR_TO_DATA 20
|
||
|
|
|
||
|
|
#define DSK_TYPE_PRODOS 0
|
||
|
|
#define DSK_TYPE_DOS33 1
|
||
|
|
#define DSK_TYPE_NIB 2
|
||
|
|
|
||
|
|
typedef struct _Disk Disk;
|
||
|
|
|
||
|
|
STRUCT(Trk) {
|
||
|
|
Disk *dsk;
|
||
|
|
byte *nib_area;
|
||
|
|
int track_dirty;
|
||
|
|
int overflow_size;
|
||
|
|
int track_len;
|
||
|
|
int unix_pos;
|
||
|
|
int unix_len;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct _Disk {
|
||
|
|
double dcycs_last_read;
|
||
|
|
char *name_ptr;
|
||
|
|
char *partition_name;
|
||
|
|
int partition_num;
|
||
|
|
FILE *file;
|
||
|
|
int force_size;
|
||
|
|
int image_start;
|
||
|
|
int image_size;
|
||
|
|
int smartport;
|
||
|
|
int disk_525;
|
||
|
|
int drive;
|
||
|
|
int cur_qtr_track;
|
||
|
|
int image_type;
|
||
|
|
int vol_num;
|
||
|
|
int write_prot;
|
||
|
|
int write_through_to_unix;
|
||
|
|
int disk_dirty;
|
||
|
|
int just_ejected;
|
||
|
|
int last_phase;
|
||
|
|
int nib_pos;
|
||
|
|
int num_tracks;
|
||
|
|
Trk *trks;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
STRUCT(Iwm) {
|
||
|
|
Disk drive525[2];
|
||
|
|
Disk drive35[2];
|
||
|
|
Disk smartport[MAX_C7_DISKS];
|
||
|
|
int motor_on;
|
||
|
|
int motor_off;
|
||
|
|
int motor_off_vbl_count;
|
||
|
|
int motor_on35;
|
||
|
|
int head35;
|
||
|
|
int step_direction35;
|
||
|
|
int iwm_phase[4];
|
||
|
|
int iwm_mode;
|
||
|
|
int drive_select;
|
||
|
|
int q6;
|
||
|
|
int q7;
|
||
|
|
int enable2;
|
||
|
|
int reset;
|
||
|
|
|
||
|
|
word32 previous_write_val;
|
||
|
|
int previous_write_bits;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
STRUCT(Driver_desc) {
|
||
|
|
word16 sig;
|
||
|
|
word16 blk_size;
|
||
|
|
word32 blk_count;
|
||
|
|
word16 dev_type;
|
||
|
|
word16 dev_id;
|
||
|
|
word32 data;
|
||
|
|
word16 drvr_count;
|
||
|
|
};
|
||
|
|
|
||
|
|
STRUCT(Part_map) {
|
||
|
|
word16 sig;
|
||
|
|
word16 sigpad;
|
||
|
|
word32 map_blk_cnt;
|
||
|
|
word32 phys_part_start;
|
||
|
|
word32 part_blk_cnt;
|
||
|
|
char part_name[32];
|
||
|
|
char part_type[32];
|
||
|
|
word32 data_start;
|
||
|
|
word32 data_cnt;
|
||
|
|
word32 part_status;
|
||
|
|
word32 log_boot_start;
|
||
|
|
word32 boot_size;
|
||
|
|
word32 boot_load;
|
||
|
|
word32 boot_load2;
|
||
|
|
word32 boot_entry;
|
||
|
|
word32 boot_entry2;
|
||
|
|
word32 boot_cksum;
|
||
|
|
char processor[16];
|
||
|
|
char junk[128];
|
||
|
|
};
|