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ao486: support for secondary IDE.

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sorgelig
2017-08-19 15:17:49 +08:00
parent 17975484f3
commit 8d8e2a9044
1 changed files with 245 additions and 192 deletions
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437
x86.c
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@@ -39,22 +39,25 @@
#define ALT_CPU_CPU_FREQ 90000000u
#define FLOPPY_BASE 0x8800
#define HDD_BASE 0x8840
#define PC_BUS_BASE 0x88a0
#define PIO_OUTPUT_BASE 0x8860
#define SOUND_BASE 0x9000
#define PIT_BASE 0x8880
#define RTC_BASE 0x8c00
#define SD_BASE 0x0A00
#define FLOPPY0_BASE 0x8800
#define HDD0_BASE 0x8840
#define FLOPPY1_BASE 0x9800
#define HDD1_BASE 0x9840
#define PC_BUS_BASE 0x88a0
#define PIO_OUTPUT_BASE 0x8860
#define SOUND_BASE 0x9000
#define PIT_BASE 0x8880
#define RTC_BASE 0x8c00
#define SD_BASE 0x0A00
#define CFG_VER 1
#define CFG_VER 2
typedef struct
{
uint32_t ver;
char fdd_name[1024];
char hdd_name[1024];
char hdd0_name[1024];
char hdd1_name[1024];
} x86_config;
static x86_config config;
@@ -219,16 +222,27 @@ static bool floppy_is_2_88m= false;
#define CMOS_FDD_TYPE ((floppy_is_2_88m) ? 0x50 : (floppy_is_1_44m || floppy_is_1_68m) ? 0x40 : (floppy_is_720k) ? 0x30 : (floppy_is_1_2m) ? 0x20 : 0x10)
static fileTYPE fdd_image = { 0 };
static fileTYPE hdd_image = { 0 };
static fileTYPE fdd_image0 = { 0 };
static fileTYPE fdd_image1 = { 0 };
static fileTYPE hdd_image0 = { 0 };
static fileTYPE hdd_image1 = { 0 };
static bool boot_from_floppy = 1;
#define IMG_TYPE_FDD 0x800
#define IMG_TYPE_HDD 0x000
#define IMG_TYPE_FDD0 0x0800
#define IMG_TYPE_FDD1 0x1800
#define IMG_TYPE_HDD0 0x0000
#define IMG_TYPE_HDD1 0x1000
static __inline fileTYPE *get_image(uint32_t type)
{
return (type == IMG_TYPE_FDD) ? &fdd_image : &hdd_image;
switch (type)
{
case IMG_TYPE_HDD0: return &hdd_image0;
case IMG_TYPE_HDD1: return &hdd_image1;
case IMG_TYPE_FDD0: return &fdd_image0;
}
return &fdd_image1;
}
static int img_mount(uint32_t type, char *name)
@@ -295,8 +309,8 @@ static int fdd_set(char* filename)
floppy_is_1_68m = false;
floppy_is_2_88m = false;
int floppy = img_mount(IMG_TYPE_FDD, filename);
uint32_t size = get_image(IMG_TYPE_FDD)->size/512;
int floppy = img_mount(IMG_TYPE_FDD0, filename);
uint32_t size = get_image(IMG_TYPE_FDD0)->size/512;
if (floppy && size)
{
if (size >= 5760) floppy_is_2_88m = true;
@@ -360,24 +374,183 @@ static int fdd_set(char* filename)
(floppy_is_2_88m) ? 0x40 :
0x20;
IOWR(FLOPPY_BASE, 0x0, floppy ? 1 : 0);
IOWR(FLOPPY_BASE, 0x1, (floppy && (get_image(IMG_TYPE_FDD)->mode & O_RDWR)) ? 0 : 1);
IOWR(FLOPPY_BASE, 0x2, floppy_cylinders);
IOWR(FLOPPY_BASE, 0x3, floppy_spt);
IOWR(FLOPPY_BASE, 0x4, floppy_total_sectors);
IOWR(FLOPPY_BASE, 0x5, floppy_heads);
IOWR(FLOPPY_BASE, 0x6, 0); // base LBA
IOWR(FLOPPY_BASE, 0x7, (int)(floppy_wait_cycles / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY_BASE, 0x8, (int)(1000000.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY_BASE, 0x9, (int)(1666666.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY_BASE, 0xA, (int)(2000000.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY_BASE, 0xB, (int)(500000.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY_BASE, 0xC, floppy_media);
IOWR(FLOPPY0_BASE, 0x0, floppy ? 1 : 0);
IOWR(FLOPPY0_BASE, 0x1, (floppy && (get_image(IMG_TYPE_FDD0)->mode & O_RDWR)) ? 0 : 1);
IOWR(FLOPPY0_BASE, 0x2, floppy_cylinders);
IOWR(FLOPPY0_BASE, 0x3, floppy_spt);
IOWR(FLOPPY0_BASE, 0x4, floppy_total_sectors);
IOWR(FLOPPY0_BASE, 0x5, floppy_heads);
IOWR(FLOPPY0_BASE, 0x6, 0); // base LBA
IOWR(FLOPPY0_BASE, 0x7, (int)(floppy_wait_cycles / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY0_BASE, 0x8, (int)(1000000.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY0_BASE, 0x9, (int)(1666666.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY0_BASE, 0xA, (int)(2000000.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY0_BASE, 0xB, (int)(500000.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(FLOPPY0_BASE, 0xC, floppy_media);
//cmos_set(0x10, CMOS_FDD_TYPE);
return floppy;
}
typedef struct
{
uint32_t type;
uint32_t base;
uint32_t hd_cylinders;
uint32_t hd_heads;
uint32_t hd_spt;
uint32_t hd_total_sectors;
uint32_t present;
char* name;
} hdd_config;
static hdd_config hdd[2] = {
{ IMG_TYPE_HDD0, HDD0_BASE, 0, 0, 0, 0, 0, config.hdd0_name },
{ IMG_TYPE_HDD1, HDD1_BASE, 0, 0, 0, 0, 0, config.hdd1_name }
};
static int hdd_set(uint32_t num)
{
hdd[num].hd_cylinders = 0;
hdd[num].hd_heads = 0;
hdd[num].hd_spt = 0;
hdd[num].hd_total_sectors = 0;
hdd[num].present = img_mount(hdd[num].type, hdd[num].name);
if (hdd[num].present)
{
hdd[num].hd_heads = 16;
hdd[num].hd_spt = 63;
hdd[num].hd_cylinders = get_image(hdd[num].type)->size / (hdd[num].hd_heads * hdd[num].hd_spt * 512);
if (hdd[num].hd_cylinders > 131071) hdd[num].hd_spt = 255;
else if (hdd[num].hd_cylinders > 65535) hdd[num].hd_spt = 127;
hdd[num].hd_cylinders = get_image(hdd[num].type)->size / (hdd[num].hd_heads * hdd[num].hd_spt * 512);
if (hdd[num].hd_cylinders > 65535) hdd[num].hd_cylinders = 65535;
hdd[num].hd_total_sectors = hdd[num].hd_spt*hdd[num].hd_heads*hdd[num].hd_cylinders;
}
/*
0x00.[31:0]: identify write
0x01.[16:0]: media cylinders
0x02.[4:0]: media heads
0x03.[8:0]: media spt
0x04.[13:0]: media sectors per cylinder = spt * heads
0x05.[31:0]: media sectors total
0x06.[31:0]: media sd base
*/
uint32_t identify[256] =
{
0x0040, //word 0
hdd[num].hd_cylinders, //word 1
0x0000, //word 2 reserved
hdd[num].hd_heads, //word 3
(uint16_t)(512 * hdd[num].hd_spt), //word 4
512, //word 5
hdd[num].hd_spt, //word 6
0x0000, //word 7 vendor specific
0x0000, //word 8 vendor specific
0x0000, //word 9 vendor specific
('A' << 8) | 'O', //word 10
('H' << 8) | 'D', //word 11
('0' << 8) | '0', //word 12
('0' << 8) | '0', //word 13
('0' << 8) | ' ', //word 14
(' ' << 8) | ' ', //word 15
(' ' << 8) | ' ', //word 16
(' ' << 8) | ' ', //word 17
(' ' << 8) | ' ', //word 18
(' ' << 8) | ' ', //word 19
3, //word 20 buffer type
512, //word 21 cache size
4, //word 22 number of ecc bytes
0,0,0,0, //words 23..26 firmware revision
('A' << 8) | 'O', //words 27..46 model number
(' ' << 8) | 'H',
('a' << 8) | 'r',
('d' << 8) | 'd',
('r' << 8) | 'i',
('v' << 8) | 'e',
(('0' + (char)num) << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
16, //word 47 max multiple sectors
1, //word 48 dword io
1 << 9, //word 49 lba supported
0x0000, //word 50 reserved
0x0200, //word 51 pio timing
0x0200, //word 52 pio timing
0x0007, //word 53 valid fields
hdd[num].hd_cylinders, //word 54
hdd[num].hd_heads, //word 55
hdd[num].hd_spt, //word 56
hdd[num].hd_total_sectors & 0xFFFF, //word 57
hdd[num].hd_total_sectors >> 16, //word 58
0x0000, //word 59 multiple sectors
hdd[num].hd_total_sectors & 0xFFFF, //word 60
hdd[num].hd_total_sectors >> 16, //word 61
0x0000, //word 62 single word dma modes
0x0000, //word 63 multiple word dma modes
0x0000, //word 64 pio modes
120,120,120,120, //word 65..68
0,0,0,0,0,0,0,0,0,0,0, //word 69..79
0x007E, //word 80 ata modes
0x0000, //word 81 minor version number
1 << 14, //word 82 supported commands
(1 << 14) | (1 << 13) | (1 << 12) | (1 << 10), //word 83
1 << 14, //word 84
1 << 14, //word 85
(1 << 14) | (1 << 13) | (1 << 12) | (1 << 10), //word 86
1 << 14, //word 87
0x0000, //word 88
0,0,0,0, //word 89..92
1 | (1 << 14) | 0x2000, //word 93
0,0,0,0,0,0, //word 94..99
hdd[num].hd_total_sectors & 0xFFFF, //word 100
hdd[num].hd_total_sectors >> 16, //word 101
0, //word 102
0, //word 103
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,//word 104..127
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, //word 128..255
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
for (int i = 0; i<128; i++) IOWR(hdd[num].base, 0, hdd[num].present ? ((unsigned int)identify[2 * i + 1] << 16) | (unsigned int)identify[2 * i + 0] : 0);
IOWR(hdd[num].base, 1, hdd[num].hd_cylinders);
IOWR(hdd[num].base, 2, hdd[num].hd_heads);
IOWR(hdd[num].base, 3, hdd[num].hd_spt);
IOWR(hdd[num].base, 4, hdd[num].hd_spt * hdd[num].hd_heads);
IOWR(hdd[num].base, 5, hdd[num].hd_spt * hdd[num].hd_heads * hdd[num].hd_cylinders);
IOWR(hdd[num].base, 6, 0); // base LBA
printf("HDD%d:\n present %d\n hd_cylinders %d\n hd_heads %d\n hd_spt %d\n hd_total_sectors %d\n\n", num, hdd[num].present, hdd[num].hd_cylinders, hdd[num].hd_heads, hdd[num].hd_spt, hdd[num].hd_total_sectors);
return hdd[num].present;
}
static uint8_t bin2bcd(unsigned val)
{
return ((val / 10) << 4) + (val % 10);
@@ -425,137 +598,8 @@ void x86_init()
//-------------------------------------------------------------------------- hdd
unsigned int hd_cylinders = 0;
unsigned int hd_heads = 0;
unsigned int hd_spt = 0;
unsigned int hd_total_sectors = 0;
unsigned int hdd_sd_base = 0;
int hdd = img_mount(IMG_TYPE_HDD, config.hdd_name);
if (hdd)
{
hd_cylinders = 1024;
hd_heads = 16;
hd_spt = 63;
hd_total_sectors = get_image(IMG_TYPE_HDD)->size / 512;
}
/*
0x00.[31:0]: identify write
0x01.[16:0]: media cylinders
0x02.[4:0]: media heads
0x03.[8:0]: media spt
0x04.[13:0]: media sectors per cylinder = spt * heads
0x05.[31:0]: media sectors total
0x06.[31:0]: media sd base
*/
uint32_t identify[256] =
{
0x0040, //word 0
(hd_cylinders > 16383)? 16383 : hd_cylinders, //word 1
0x0000, //word 2 reserved
hd_heads, //word 3
(uint16_t)(512 * hd_spt), //word 4
512, //word 5
hd_spt, //word 6
0x0000, //word 7 vendor specific
0x0000, //word 8 vendor specific
0x0000, //word 9 vendor specific
('A' << 8) | 'O', //word 10
('H' << 8) | 'D', //word 11
('0' << 8) | '0', //word 12
('0' << 8) | '0', //word 13
('0' << 8) | ' ', //word 14
(' ' << 8) | ' ', //word 15
(' ' << 8) | ' ', //word 16
(' ' << 8) | ' ', //word 17
(' ' << 8) | ' ', //word 18
(' ' << 8) | ' ', //word 19
3, //word 20 buffer type
512, //word 21 cache size
4, //word 22 number of ecc bytes
0,0,0,0, //words 23..26 firmware revision
('A' << 8) | 'O', //words 27..46 model number
(' ' << 8) | 'H',
('a' << 8) | 'r',
('d' << 8) | 'd',
('r' << 8) | 'i',
('v' << 8) | 'e',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
(' ' << 8) | ' ',
16, //word 47 max multiple sectors
1, //word 48 dword io
1<<9, //word 49 lba supported
0x0000, //word 50 reserved
0x0200, //word 51 pio timing
0x0200, //word 52 pio timing
0x0007, //word 53 valid fields
(hd_cylinders > 16383)? 16383 : hd_cylinders, //word 54
hd_heads, //word 55
hd_spt, //word 56
hd_total_sectors & 0xFFFF, //word 57
hd_total_sectors >> 16, //word 58
0x0000, //word 59 multiple sectors
hd_total_sectors & 0xFFFF, //word 60
hd_total_sectors >> 16, //word 61
0x0000, //word 62 single word dma modes
0x0000, //word 63 multiple word dma modes
0x0000, //word 64 pio modes
120,120,120,120, //word 65..68
0,0,0,0,0,0,0,0,0,0,0, //word 69..79
0x007E, //word 80 ata modes
0x0000, //word 81 minor version number
1<<14, //word 82 supported commands
(1<<14) | (1<<13) | (1<<12) | (1<<10), //word 83
1<<14, //word 84
1<<14, //word 85
(1<<14) | (1<<13) | (1<<12) | (1<<10), //word 86
1<<14, //word 87
0x0000, //word 88
0,0,0,0, //word 89..92
1 | (1<<14) | 0x2000, //word 93
0,0,0,0,0,0, //word 94..99
hd_total_sectors & 0xFFFF, //word 100
hd_total_sectors >> 16, //word 101
0, //word 102
0, //word 103
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,//word 104..127
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, //word 128..255
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
for(int i=0; i<128; i++) IOWR(HDD_BASE, 0, hdd ? ((unsigned int)identify[2*i+1] << 16) | (unsigned int)identify[2*i+0] : 0);
IOWR(HDD_BASE, 1, hd_cylinders);
IOWR(HDD_BASE, 2, hd_heads);
IOWR(HDD_BASE, 3, hd_spt);
IOWR(HDD_BASE, 4, hd_spt * hd_heads);
IOWR(HDD_BASE, 5, hd_spt * hd_heads * hd_cylinders);
IOWR(HDD_BASE, 6, 0); // base LBA
printf("HDD:\n hd_cylinders %d\n hd_heads %d\n hd_spt %d\n hd_total_sectors %d\n\n", hd_cylinders, hd_heads, hd_spt, hd_total_sectors);
hdd_set(0);
hdd_set(1);
//-------------------------------------------------------------------------- rtc
@@ -566,12 +610,16 @@ void x86_init()
IOWR(RTC_BASE, 128, (int)(1000000000.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
IOWR(RTC_BASE, 129, (int)(122070.0 / (1000000000.0 / ALT_CPU_CPU_FREQ)));
/*
bool translate_none = hd_cylinders <= 1024 && hd_heads <= 16 && hd_spt <= 63;
bool translate_large= !translate_none && (hd_cylinders * hd_heads) <= 131072;
bool translate_lba = !translate_none && !translate_large;
unsigned char translate_byte = 1; //(translate_large) ? 1 : (translate_lba) ? 2 : 0;
unsigned char translate_byte = (translate_large) ? 1 : (translate_lba) ? 2 : 0;
*/
unsigned char translate_byte1 = 1;
unsigned char translate_byte2 = 1;
time_t t = time(NULL);
struct tm tm = *localtime(&t);
@@ -597,7 +645,7 @@ void x86_init()
CMOS_FDD_TYPE, //0x10: floppy drive type; 0-none, 1-360K, 2-1.2M, 3-720K, 4-1.44M, 5-2.88M
0x00, //0x11: configuration bits; not used
0xF0, //0x12: hard disk types; 0-none, 1:E-type, F-type 16+
(hdd[0].present ? 0xF0 : 0x00) | (hdd[1].present ? 0x0F : 0x00), //0x12: hard disk types; 0-none, 1:E-type, F-type 16+
0x00, //0x13: advanced configuration bits; not used
0x0D, //0x14: equipment bits
0x80, //0x15: base memory in 1k LSB
@@ -605,27 +653,27 @@ void x86_init()
0x00, //0x17: memory size above 1m in 1k LSB
0xFC, //0x18: memory size above 1m in 1k MSB
0x2F, //0x19: extended hd types 1/2; type 47d
0x00, //0x1A: extended hd types 2/2
0x2F, //0x1A: extended hd types 2/2
hdd ? hd_cylinders & 0xFF : 0, //0x1B: hd 0 configuration 1/9; cylinders low
hdd ? (hd_cylinders >> 8) & 0xFF : 0, //0x1C: hd 0 configuration 2/9; cylinders high
hdd ? hd_heads : 0, //0x1D: hd 0 configuration 3/9; heads
hdd ? 0xFF : 0, //0x1E: hd 0 configuration 4/9; write pre-comp low
hdd ? 0xFF : 0, //0x1F: hd 0 configuration 5/9; write pre-comp high
hdd ? 0xC8 : 0, //0x20: hd 0 configuration 6/9; retries/bad map/heads>8
hdd ? hd_cylinders & 0xFF : 0, //0x21: hd 0 configuration 7/9; landing zone low
hdd ? (hd_cylinders >> 8) & 0xFF : 0, //0x22: hd 0 configuration 8/9; landing zone high
hdd ? hd_spt : 0, //0x23: hd 0 configuration 9/9; sectors/track
hdd[0].present ? hdd[0].hd_cylinders & 0xFF : 0, //0x1B: hd 0 configuration 1/9; cylinders low
hdd[0].present ? (hdd[0].hd_cylinders >> 8) & 0xFF : 0, //0x1C: hd 0 configuration 2/9; cylinders high
hdd[0].present ? hdd[0].hd_heads : 0, //0x1D: hd 0 configuration 3/9; heads
hdd[0].present ? 0xFF : 0, //0x1E: hd 0 configuration 4/9; write pre-comp low
hdd[0].present ? 0xFF : 0, //0x1F: hd 0 configuration 5/9; write pre-comp high
hdd[0].present ? 0xC8 : 0, //0x20: hd 0 configuration 6/9; retries/bad map/heads>8
hdd[0].present ? hdd[0].hd_cylinders & 0xFF : 0, //0x21: hd 0 configuration 7/9; landing zone low
hdd[0].present ? (hdd[0].hd_cylinders >> 8) & 0xFF : 0, //0x22: hd 0 configuration 8/9; landing zone high
hdd[0].present ? hdd[0].hd_spt : 0, //0x23: hd 0 configuration 9/9; sectors/track
0x00, //0x24: hd 1 configuration 1/9
0x00, //0x25: hd 1 configuration 2/9
0x00, //0x26: hd 1 configuration 3/9
0x00, //0x27: hd 1 configuration 4/9
0x00, //0x28: hd 1 configuration 5/9
0x00, //0x29: hd 1 configuration 6/9
0x00, //0x2A: hd 1 configuration 7/9
0x00, //0x2B: hd 1 configuration 8/9
0x00, //0x2C: hd 1 configuration 9/9
hdd[1].present ? hdd[1].hd_cylinders & 0xFF : 0, //0x24: hd 1 configuration 1/9; cylinders low
hdd[1].present ? (hdd[1].hd_cylinders >> 8) & 0xFF : 0, //0x25: hd 1 configuration 2/9; cylinders high
hdd[1].present ? hdd[1].hd_heads : 0, //0x26: hd 1 configuration 3/9; heads
hdd[1].present ? 0xFF : 0, //0x27: hd 1 configuration 4/9; write pre-comp low
hdd[1].present ? 0xFF : 0, //0x28: hd 1 configuration 5/9; write pre-comp high
hdd[1].present ? 0xC8 : 0, //0x29: hd 1 configuration 6/9; retries/bad map/heads>8
hdd[1].present ? hdd[1].hd_cylinders & 0xFF : 0, //0x2A: hd 1 configuration 7/9; landing zone low
hdd[1].present ? (hdd[1].hd_cylinders >> 8) & 0xFF : 0, //0x2B: hd 1 configuration 8/9; landing zone high
hdd[1].present ? hdd[1].hd_spt : 0, //0x2C: hd 1 configuration 9/9; sectors/track
(boot_from_floppy)? 0x20u : 0x00u, //0x2D: boot sequence
@@ -644,9 +692,9 @@ void x86_init()
0x00, //0x36: ?
0x20, //0x37: IBM PS/2 century
0x00, //0x38: eltorito boot sequence; not used
translate_byte, //0x39: ata translation policy 1/2
0x00, //0x3A: ata translation policy 2/2
0x00, //0x38: eltorito boot sequence; not used
translate_byte1, //0x39: ata translation policy 1/2
translate_byte2, //0x3A: ata translation policy 2/2
0x00, //0x3B: ?
0x00, //0x3C: ?
@@ -756,15 +804,20 @@ void x86_poll()
void x86_set_image(int num, char *filename)
{
if (num == 2)
{
strcpy(config.hdd_name, filename);
}
if (num == 0)
switch (num)
{
case 0:
strcpy(config.fdd_name, filename);
fdd_set(filename);
break;
case 2:
strcpy(config.hdd0_name, filename);
break;
case 3:
strcpy(config.hdd1_name, filename);
break;
}
}