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Applied a whole slew of patches, getting RAM usage down by a further 10 MB.

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OBattler
2018-03-19 01:02:04 +01:00
parent b6c393cc91
commit b1efb99ed6
222 changed files with 9538 additions and 9980 deletions
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271
src/floppy/fdd.h
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@@ -1,34 +1,54 @@
/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
* VARCem Virtual ARchaeological Computer EMulator.
* An emulator of (mostly) x86-based PC systems and devices,
* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
* spanning the era between 1981 and 1995.
*
* This file is part of the 86Box distribution.
* This file is part of the VARCem Project.
*
* Implementation of the floppy drive emulation.
* Definitions for the floppy drive emulation.
*
* Version: @(#)fdd.h 1.0.5 2018/01/18
* Version: @(#)fdd.h 1.0.3 2018/03/17
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
* Miran Grca, <mgrca8@gmail.com>
* Sarah Walker, <tommowalker@tommowalker.co.uk>
*
* Copyright 2008-2018 Sarah Walker.
* Copyright 2018 Fred N. van Kempen.
* Copyright 2016-2018 Miran Grca.
* Copyright 2008-2018 Sarah Walker.
*
* 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.
*/
#ifndef EMU_FDD_H
# define EMU_FDD_H
#define FDD_NUM 4
#define SEEK_RECALIBRATE -999
#define FDD_NUM 4
#define SEEK_RECALIBRATE -999
#ifdef __cplusplus
extern "C" {
#endif
extern int fdd_swap;
extern int fdd_swap;
extern void fdd_do_seek(int drive, int track);
@@ -65,16 +85,19 @@ extern int fdd_current_track(int drive);
typedef struct {
void (*seek)(int drive, int track);
void (*readsector)(int drive, int sector, int track, int side, int density, int sector_size);
void (*writesector)(int drive, int sector, int track, int side, int density, int sector_size);
void (*comparesector)(int drive, int sector, int track, int side, int density, int sector_size);
void (*readaddress)(int drive, int side, int density);
void (*format)(int drive, int side, int density, uint8_t fill);
int (*hole)(int drive);
double (*byteperiod)(int drive);
void (*stop)(int drive);
void (*poll)(int drive);
void (*seek)(int drive, int track);
void (*readsector)(int drive, int sector, int track, int side,
int density, int sector_size);
void (*writesector)(int drive, int sector, int track, int side,
int density, int sector_size);
void (*comparesector)(int drive, int sector, int track, int side,
int density, int sector_size);
void (*readaddress)(int drive, int side, int density);
void (*format)(int drive, int side, int density, uint8_t fill);
int (*hole)(int drive);
double (*byteperiod)(int drive);
void (*stop)(int drive);
void (*poll)(int drive);
} DRIVE;
@@ -115,60 +138,24 @@ extern void fdd_stop(int drive);
extern int fdd_empty(int drive);
extern void fdd_set_rate(int drive, int drvden, int rate);
extern int motorspin;
extern int64_t motoron[FDD_NUM];
extern int motorspin;
extern int64_t motoron[FDD_NUM];
extern int swwp;
extern int disable_write;
extern int swwp;
extern int disable_write;
extern int defaultwriteprot;
extern int defaultwriteprot;
extern int writeprot[FDD_NUM], fwriteprot[FDD_NUM];
extern int fdd_cur_track[FDD_NUM];
extern int fdd_changed[FDD_NUM];
extern int drive_empty[FDD_NUM];
extern int drive_type[FDD_NUM];
extern int writeprot[FDD_NUM], fwriteprot[FDD_NUM];
extern int fdd_cur_track[FDD_NUM];
extern int fdd_changed[FDD_NUM];
extern int drive_empty[FDD_NUM];
extern int drive_type[FDD_NUM];
/*Used in the Read A Track command. Only valid for fdd_readsector(). */
#define SECTOR_FIRST -2
#define SECTOR_NEXT -1
#if 0
/* Bits 0-3 define byte type, bit 5 defines whether it is a per-track (0) or per-sector (1) byte, if bit 7 is set, the byte is the index hole. */
#define BYTE_GAP0 0x00
#define BYTE_GAP1 0x10
#define BYTE_GAP4 0x20
#define BYTE_GAP2 0x40
#define BYTE_GAP3 0x50
#define BYTE_I_SYNC 0x01
#define BYTE_ID_SYNC 0x41
#define BYTE_DATA_SYNC 0x51
#define BYTE_IAM_SYNC 0x02
#define BYTE_IDAM_SYNC 0x42
#define BYTE_DATAAM_SYNC 0x52
#define BYTE_IAM 0x03
#define BYTE_IDAM 0x43
#define BYTE_DATAAM 0x53
#define BYTE_ID 0x44
#define BYTE_DATA 0x54
#define BYTE_ID_CRC 0x45
#define BYTE_DATA_CRC 0x55
#define BYTE_IS_FUZZY 0x80
#define BYTE_INDEX_HOLE 0x80 /* 1 = index hole, 0 = regular byte */
#define BYTE_IS_SECTOR 0x40 /* 1 = per-sector, 0 = per-track */
#define BYTE_IS_POST_TRACK 0x20 /* 1 = after all sectors, 0 = before or during all sectors */
#define BYTE_IS_DATA 0x10 /* 1 = data, 0 = id */
#define BYTE_TYPE 0x0F /* 5 = crc, 4 = data, 3 = address mark, 2 = address mark sync, 1 = sync, 0 = gap */
#define BYTE_TYPE_GAP 0x00
#define BYTE_TYPE_SYNC 0x01
#define BYTE_TYPE_AM_SYNC 0x02
#define BYTE_TYPE_AM 0x03
#define BYTE_TYPE_DATA 0x04
#define BYTE_TYPE_CRC 0x05
#endif
typedef union {
uint16_t word;
uint8_t bytes[2];
@@ -176,94 +163,92 @@ typedef union {
void fdd_calccrc(uint8_t byte, crc_t *crc_var);
typedef struct
{
uint16_t (*disk_flags)(int drive);
uint16_t (*side_flags)(int drive);
void (*writeback)(int drive);
void (*set_sector)(int drive, int side, uint8_t c, uint8_t h, uint8_t r, uint8_t n);
uint8_t (*read_data)(int drive, int side, uint16_t pos);
void (*write_data)(int drive, int side, uint16_t pos, uint8_t data);
int (*format_conditions)(int drive);
int32_t (*extra_bit_cells)(int drive, int side);
uint16_t* (*encoded_data)(int drive, int side);
void (*read_revolution)(int drive);
uint32_t (*index_hole_pos)(int drive, int side);
uint32_t (*get_raw_size)(int drive, int side);
uint8_t check_crc;
typedef struct {
uint16_t (*disk_flags)(int drive);
uint16_t (*side_flags)(int drive);
void (*writeback)(int drive);
void (*set_sector)(int drive, int side, uint8_t c, uint8_t h,
uint8_t r, uint8_t n);
uint8_t (*read_data)(int drive, int side, uint16_t pos);
void (*write_data)(int drive, int side, uint16_t pos,
uint8_t data);
int (*format_conditions)(int drive);
int32_t (*extra_bit_cells)(int drive, int side);
uint16_t* (*encoded_data)(int drive, int side);
void (*read_revolution)(int drive);
uint32_t (*index_hole_pos)(int drive, int side);
uint32_t (*get_raw_size)(int drive, int side);
uint8_t check_crc;
} d86f_handler_t;
d86f_handler_t d86f_handler[FDD_NUM];
extern const int gap3_sizes[5][8][48];
extern d86f_handler_t d86f_handler[FDD_NUM];
void d86f_common_handlers(int drive);
extern void d86f_setup(int drive);
extern void d86f_destroy(int drive);
extern int d86f_export(int drive, wchar_t *fn);
extern void d86f_unregister(int drive);
extern void d86f_common_handlers(int drive);
extern void d86f_set_version(int drive, uint16_t version);
extern int d86f_is_40_track(int drive);
extern void d86f_reset_index_hole_pos(int drive, int side);
extern uint16_t d86f_prepare_pretrack(int drive, int side, int iso);
extern uint16_t d86f_prepare_sector(int drive, int side, int prev_pos,
uint8_t *id_buf, uint8_t *data_buf,
int data_len, int gap2, int gap3,
int deleted, int bad_crc);
extern void d86f_set_track_pos(int drive, uint32_t track_pos);
extern void d86f_set_cur_track(int drive, int track);
extern void d86f_zero_track(int drive);
extern void d86f_initialize_last_sector_id(int drive, int c, int h,
int r, int n);
extern void d86f_initialize_linked_lists(int drive);
extern void d86f_destroy_linked_lists(int drive, int side);
extern uint16_t *common_encoded_data(int drive, int side);
extern void common_read_revolution(int drive);
extern uint32_t common_get_raw_size(int drive, int side);
extern void null_writeback(int drive);
extern void null_write_data(int drive, int side, uint16_t pos,
uint8_t data);
extern int null_format_conditions(int drive);
extern int32_t null_extra_bit_cells(int drive, int side);
extern void null_set_sector(int drive, int side, uint8_t c, uint8_t h,
uint8_t r, uint8_t n);
extern uint32_t null_index_hole_pos(int drive, int side);
int d86f_is_40_track(int drive);
extern const uint8_t dmf_r[21];
extern const uint8_t xdf_physical_sectors[2][2];
extern const uint8_t xdf_gap3_sizes[2][2];
extern const uint16_t xdf_trackx_spos[2][8];
void d86f_reset_index_hole_pos(int drive, int side);
uint16_t d86f_prepare_pretrack(int drive, int side, int iso);
uint16_t d86f_prepare_sector(int drive, int side, int prev_pos, uint8_t *id_buf, uint8_t *data_buf, int data_len, int gap2, int gap3, int deleted, int bad_crc);
extern int gap3_sizes[5][8][48];
void null_writeback(int drive);
void null_write_data(int drive, int side, uint16_t pos, uint8_t data);
int null_format_conditions(int drive);
void d86f_unregister(int drive);
extern uint8_t dmf_r[21];
extern uint8_t xdf_physical_sectors[2][2];
extern uint8_t xdf_gap3_sizes[2][2];
extern uint16_t xdf_trackx_spos[2][8];
typedef struct
{
uint8_t h;
uint8_t r;
typedef struct {
uint8_t h;
uint8_t r;
} xdf_id_t;
typedef union
{
uint16_t word;
xdf_id_t id;
typedef union {
uint16_t word;
xdf_id_t id;
} xdf_sector_t;
extern xdf_sector_t xdf_img_layout[2][2][46];
extern xdf_sector_t xdf_disk_layout[2][2][38];
extern const xdf_sector_t xdf_img_layout[2][2][46];
extern const xdf_sector_t xdf_disk_layout[2][2][38];
uint32_t td0_get_raw_tsize(int side_flags, int slower_rpm);
void d86f_set_track_pos(int drive, uint32_t track_pos);
int32_t null_extra_bit_cells(int drive, int side);
uint16_t* common_encoded_data(int drive, int side);
void common_read_revolution(int drive);
void null_set_sector(int drive, int side, uint8_t c, uint8_t h, uint8_t r, uint8_t n);
uint32_t null_index_hole_pos(int drive, int side);
uint32_t common_get_raw_size(int drive, int side);
typedef struct
{
uint8_t c;
uint8_t h;
uint8_t r;
uint8_t n;
typedef struct {
uint8_t c;
uint8_t h;
uint8_t r;
uint8_t n;
} sector_id_fields_t;
typedef union
{
uint32_t dword;
uint8_t byte_array[4];
sector_id_fields_t id;
typedef union {
uint32_t dword;
uint8_t byte_array[4];
sector_id_fields_t id;
} sector_id_t;
void d86f_set_version(int drive, uint16_t version);
void d86f_initialize_last_sector_id(int drive, int c, int h, int r, int n);
void d86f_destroy_linked_lists(int drive, int side);
void d86f_set_fdc(void *fdc);
void fdi_set_fdc(void *fdc);
@@ -271,10 +256,6 @@ void fdd_set_fdc(void *fdc);
void imd_set_fdc(void *fdc);
void img_set_fdc(void *fdc);
extern void d86f_set_cur_track(int drive, int track);
extern void d86f_zero_track(int drive);
extern int d86f_export(int drive, wchar_t *fn);
#ifdef __cplusplus
}