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This commit is contained in:
Jasmine Iwanek
2023-01-06 15:36:05 -05:00
parent 95cf08611c
commit a40630ba63
311 changed files with 6218 additions and 6062 deletions
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50
src/floppy/fdd_86f.c
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@@ -155,23 +155,23 @@ typedef struct {
} sector_t;
/* Disk flags:
* Bit 0 Has surface data (1 = yes, 0 = no)
* Bits 2, 1 Hole (3 = ED + 2000 kbps, 2 = ED, 1 = HD, 0 = DD)
* Bit 3 Sides (1 = 2 sides, 0 = 1 side)
* Bit 4 Write protect (1 = yes, 0 = no)
* Bits 6, 5 RPM slowdown (3 = 2%, 2 = 1.5%, 1 = 1%, 0 = 0%)
* Bit 7 Bitcell mode (1 = Extra bitcells count specified after
* disk flags, 0 = No extra bitcells)
* The maximum number of extra bitcells is 1024 (which
* after decoding translates to 64 bytes)
* Bit 8 Disk type (1 = Zoned, 0 = Fixed RPM)
* Bits 10, 9 Zone type (3 = Commodore 64 zoned, 2 = Apple zoned,
* 1 = Pre-Apple zoned #2, 0 = Pre-Apple zoned #1)
* Bit 11 Data and surface bits are stored in reverse byte endianness
* Bit 12 If bits 6, 5 are not 0, they specify % of speedup instead
* of slowdown;
* If bits 6, 5 are 0, and bit 7 is 1, the extra bitcell count
* specifies the entire bitcell count
* Bit 0 Has surface data (1 = yes, 0 = no)
* Bits 2, 1 Hole (3 = ED + 2000 kbps, 2 = ED, 1 = HD, 0 = DD)
* Bit 3 Sides (1 = 2 sides, 0 = 1 side)
* Bit 4 Write protect (1 = yes, 0 = no)
* Bits 6, 5 RPM slowdown (3 = 2%, 2 = 1.5%, 1 = 1%, 0 = 0%)
* Bit 7 Bitcell mode (1 = Extra bitcells count specified after
* disk flags, 0 = No extra bitcells)
* The maximum number of extra bitcells is 1024 (which
* after decoding translates to 64 bytes)
* Bit 8 Disk type (1 = Zoned, 0 = Fixed RPM)
* Bits 10, 9 Zone type (3 = Commodore 64 zoned, 2 = Apple zoned,
* 1 = Pre-Apple zoned #2, 0 = Pre-Apple zoned #1)
* Bit 11 Data and surface bits are stored in reverse byte endianness
* Bit 12 If bits 6, 5 are not 0, they specify % of speedup instead
* of slowdown;
* If bits 6, 5 are 0, and bit 7 is 1, the extra bitcell count
* specifies the entire bitcell count
*/
typedef struct {
FILE *f;
@@ -2732,14 +2732,14 @@ d86f_prepare_sector(int drive, int side, int prev_pos, uint8_t *id_buf, uint8_t
* ((track << 1) + 1);
*
* - Any bits that differ are treated as thus:
* - Both are regular but contents differ -> Output is fuzzy;
* - One is regular and one is fuzzy -> Output is fuzzy;
* - Both are fuzzy -> Output is fuzzy;
* - Both are physical holes -> Output is a physical hole;
* - One is regular and one is a physical hole -> Output is fuzzy,
* the hole half is handled appropriately on writeback;
* - One is fuzzy and one is a physical hole -> Output is fuzzy,
* the hole half is handled appropriately on writeback;
* - Both are regular but contents differ -> Output is fuzzy;
* - One is regular and one is fuzzy -> Output is fuzzy;
* - Both are fuzzy -> Output is fuzzy;
* - Both are physical holes -> Output is a physical hole;
* - One is regular and one is a physical hole -> Output is fuzzy,
* the hole half is handled appropriately on writeback;
* - One is fuzzy and one is a physical hole -> Output is fuzzy,
* the hole half is handled appropriately on writeback;
* - On write back, apart from the above notes, the final two tracks
* are written;
* - Destination ALWAYS has surface data even if the image does not.