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Fill out bios.h

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Jonathan Campbell 2025-01-20 18:47:50 -08:00
parent 1bb52e5672
commit efa9bd4fff
1 changed files with 72 additions and 48 deletions
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120
include/bios.h
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@ -28,11 +28,24 @@
#define BIOS_ADDRESS_LPT1 0x408 /* uint16_t */
#define BIOS_ADDRESS_LPT2 0x40a /* uint16_t */
#define BIOS_ADDRESS_LPT3 0x40c /* uint16_t */
/* 0x40e is reserved */
#define BIOS_ADDRESS_LPT4 0x40e /* uint16_t (older systems) */
#define BIOS_EXTENDED_BIOS_DATA_SEGMENT 0x40e /* uint16_t (newer systems since PS/2) */
#define BIOS_CONFIGURATION 0x410 /* uint16_t */
/* 0x412 is reserved */
#define BIOS_MEMORY_SIZE 0x413 /* uint16_t */
#define BIOS_TRUE_MEMORY_SIZE 0x415 /* uint16_t */
/* [15:14] = number of LPT devices
* [13:12] = reserved
* [11: 9] = number of serial devices
* [ 8: 8] = reserved
* [ 7: 6] = number of floppy drives minus 1
* [ 5: 4] = initial video mode
* 00b = EGA,VGA,etc
* 01b = 40x25 color text
* 10b = 80x25 color text
* 11b = 80x25 monochrome
*/
/* 0x412 is reserved (POST flag?) */
#define BIOS_MEMORY_SIZE 0x413 /* uint16_t, in KB, conventional memory */
#define BIOS_TRUE_MEMORY_SIZE 0x415 /* uint16_t, in KB, conventional memory (XT) */
/* 0x415 is reserved (AT error code?) */
#define BIOS_KEYBOARD_STATE 0x417
#define BIOS_KEYBOARD_FLAGS1 BIOS_KEYBOARD_STATE
@ -49,64 +62,63 @@
#define BIOS_KEYBOARD_FLAGS2_LCTRL_PRESSED (1 << 0)
#define BIOS_KEYBOARD_FLAGS2_LALT_PRESSED (1 << 1)
#define BIOS_KEYBOARD_FLAGS2_SYSTEMKEY_HELD (1 << 2)
#define BIOS_KEYBOARD_FLAGS2_SUSPENDKEY_TOGGLED (1 << 3)
#define BIOS_KEYBOARD_FLAGS2_SUSPENDKEY_TOGGLED (1 << 3) /* pause active */
#define BIOS_KEYBOARD_FLAGS2_SCROLL_LOCK_PRESSED (1 << 4)
#define BIOS_KEYBOARD_FLAGS2_NUM_LOCK_PRESSED (1 << 5)
#define BIOS_KEYBOARD_FLAGS2_CAPS_LOCK_PRESSED (1 << 6)
#define BIOS_KEYBOARD_FLAGS2_INSERT_PRESSED (1 << 7)
#define BIOS_KEYBOARD_TOKEN 0x419 /* used for keyboard input with Alt-Number */
#define BIOS_KEYBOARD_TOKEN 0x419 /* Alt+Numpad work area */
#define BIOS_KEYBOARD_BUFFER_HEAD 0x41a /* uint16_t */
#define BIOS_KEYBOARD_BUFFER_TAIL 0x41c /* uint16_t */
#define BIOS_KEYBOARD_BUFFER 0x41e /* uint16_t[] */
#define BIOS_DRIVE_ACTIVE 0x43e
#define BIOS_DRIVE_RUNNING 0x43f
#define BIOS_DISK_MOTOR_TIMEOUT 0x440
#define BIOS_DISK_STATUS 0x441
/* #define bios_fdc_result_buffer (*(unsigned short *) 0x442) */
#define BIOS_VIDEO_MODE 0x449
#define BIOS_SCREEN_COLUMNS 0x44a
#define BIOS_VIDEO_MEMORY_USED 0x44c
#define BIOS_VIDEO_MEMORY_ADDRESS 0x44e
#define BIOS_VIDEO_CURSOR_POS 0x450
#define BIOS_CURSOR_SHAPE 0x460
#define BIOS_CURSOR_LAST_LINE 0x460
#define BIOS_CURSOR_FIRST_LINE 0x461
#define BIOS_CURRENT_SCREEN_PAGE 0x462
#define BIOS_VIDEO_PORT 0x463
#define BIOS_VDU_CONTROL 0x465
#define BIOS_VDU_COLOR_REGISTER 0x466
/* 0x467-0x468 is reserved */
#define BIOS_KEYBOARD_BUFFER 0x41e /* uint16_t[16] */
#define BIOS_DRIVE_ACTIVE 0x43e /* Floppy calibration status */
#define BIOS_DRIVE_RUNNING 0x43f /* Floppy motor status */
#define BIOS_DISK_MOTOR_TIMEOUT 0x440 /* Floppy motor timeout */
#define BIOS_DISK_STATUS 0x441 /* Floppy drive status */
#define BIOS_FLOPPY_CONTROLLER_STAT_CMD_REGS 0x442 /* uint8_t[7] status/command bytes */
#define BIOS_VIDEO_MODE 0x449 /* Current INT 10h mode */
#define BIOS_SCREEN_COLUMNS 0x44a /* uint16_t */
#define BIOS_VIDEO_MEMORY_USED 0x44c /* uint16_t */
#define BIOS_VIDEO_MEMORY_ADDRESS 0x44e /* uint16_t */
#define BIOS_VIDEO_CURSOR_POS 0x450 /* struct { uint8_t col, row } pos[8] */
#define BIOS_CURSOR_SHAPE 0x460 /* uint16_t */
#define BIOS_CURSOR_LAST_LINE 0x460 /* lower uint8_t */
#define BIOS_CURSOR_FIRST_LINE 0x461 /* upper uint8_t */
#define BIOS_CURRENT_SCREEN_PAGE 0x462 /* uint8_t */
#define BIOS_VIDEO_PORT 0x463 /* uint16_t */
#define BIOS_VDU_CONTROL 0x465 /* CGA port 3D8h/MDA port 3B8h */
#define BIOS_VDU_COLOR_REGISTER 0x466 /* CGA port 3D9h */
#define BIOS_POST_RESET_VECTOR 0x467 /* uint32_t FAR 16:16 address to jump to after specific 286 reset */
#define BIOS_LAST_UNEXPECTED_IRQ 0x46b
#define BIOS_TIMER 0x46c
#define BIOS_24_HOURS_FLAG 0x470
#define BIOS_CTRL_BREAK_FLAG 0x471
#define BIOS_CTRL_ALT_DEL_FLAG 0x472
#define BIOS_TIMER 0x46c /* uint32_t Timer ticks (at 18.2Hz) since midnight */
#define BIOS_24_HOURS_FLAG 0x470 /* nonzero if timer tick rollover past midnight */
#define BIOS_CTRL_BREAK_FLAG 0x471 /* CTRL+Break flag (bit 7=1) */
#define BIOS_CTRL_ALT_DEL_FLAG 0x472 /* uint16_t POST reset flag 1234h=warm boot */
#define BIOS_FIXED_DISK_LAST_OP_STATUS 0x474
#define BIOS_HARDDISK_COUNT 0x475
/* 0x474, 0x476, 0x477 is reserved */
#define BIOS_FIXED_DISK_CONTROL_BYTE 0x476 /* XT only */
#define BIOS_FIXED_DISK_IO_PORT_OFFSET 0x477 /* XT only */
#define BIOS_LPT1_TIMEOUT 0x478
#define BIOS_LPT2_TIMEOUT 0x479
#define BIOS_LPT3_TIMEOUT 0x47a
/* 0x47b is reserved */
#define BIOS_LPT4_TIMEOUT 0x47b
#define BIOS_VIRTUAL_DMA_SUPPORT 0x47b /* set bit 5 to signal, see INT 4Bh */
#define BIOS_VIRTUAL_DMA_IS_SUPPORTED (1 << 5)
#define BIOS_COM1_TIMEOUT 0x47c
#define BIOS_COM2_TIMEOUT 0x47d
#define BIOS_COM3_TIMEOUT 0x47e
#define BIOS_COM4_TIMEOUT 0x47f
/* 0x47e is reserved */ //<- why that?
/* 0x47f-0x4ff is unknow for me */
#define BIOS_KEYBOARD_BUFFER_START 0x480
#define BIOS_KEYBOARD_BUFFER_END 0x482
#define BIOS_KEYBOARD_BUFFER_START 0x480 /* uint16_t */
#define BIOS_KEYBOARD_BUFFER_END 0x482 /* uint16_t */
#define BIOS_ROWS_ON_SCREEN_MINUS_1 0x484
#define BIOS_FONT_HEIGHT 0x485
#define BIOS_FONT_HEIGHT 0x485 /* uint16_t */
#define BIOS_VIDEO_INFO_0 0x487 /* EGA/VGA control */
#define BIOS_VIDEO_INFO_1 0x488 /* EGA/VGA switches */
#define BIOS_VIDEO_INFO_2 0x489 /* MCGA/VGA control */
#define BIOS_VIDEO_COMBO 0x48a /* MCGA/VGA Display Combination Code */
#define BIOS_VIDEO_INFO_0 0x487
#define BIOS_VIDEO_INFO_1 0x488
#define BIOS_VIDEO_INFO_2 0x489
#define BIOS_VIDEO_COMBO 0x48a
#define BIOS_KEYBOARD_PCJR_FLAG2 0x488 /* KB_FLAG_2 */
#define BIOS_KEYBOARD_PCJR_FLAG2 0x488 /* KB_FLAG_2 (PCjr) */
#define BIOS_KEYBOARD_PCJR_FLAG2_PUTCHAR (1 << 0)
#define BIOS_KEYBOARD_PCJR_FLAG2_INIT_DELAY (1 << 1)
#define BIOS_KEYBOARD_PCJR_FLAG2_HALF_RATE (1 << 2)
@ -116,6 +128,18 @@
#define BIOS_KEYBOARD_PCJR_FLAG2_FN_BREAK (1 << 6)
#define BIOS_KEYBOARD_PCJR_FLAG2_FN_FLAG (1 << 7)
#define BIOS_FLOPPY_MEDIA_CONTROL 0x48b
#define BIOS_FIXED_DISK_CTRL_STATUS 0x48c
#define BIOS_FIXED_DISK_CTRL_ERROR 0x48d
#define BIOS_FIXED_DISK_INT_CTRL 0x48e
#define BIOS_FLOPPY_CONTROLLER_INFORMATION 0x48f
#define BIOS_FLOPPY_DRIVE_0_MEDIA_STATE 0x490
#define BIOS_FLOPPY_DRIVE_1_MEDIA_STATE 0x491
#define BIOS_FLOPPY_DRIVE_0_MEDIA_STATE_AT_START 0x492
#define BIOS_FLOPPY_DRIVE_1_MEDIA_STATE_AT_START 0x493
#define BIOS_FLOPPY_DRIVE_0_CURRENT_TRACK 0x494
#define BIOS_FLOPPP_DRIVE_1_CURRENT_TRACK 0x495
#define BIOS_KEYBOARD_FLAGS3 0x496
#define BIOS_KEYBOARD_FLAGS3_HIDDEN_E1 (1 << 0)
#define BIOS_KEYBOARD_FLAGS3_HIDDEN_E0 (1 << 1)
@ -136,15 +160,15 @@
#define BIOS_KEYBOARD_LEDS_MODE (1 << 6)
#define BIOS_KEYBOARD_LEDS_TRANSMIT_ERROR (1 << 7)
#define BIOS_WAIT_FLAG_POINTER 0x498
#define BIOS_WAIT_FLAG_COUNT 0x49c
#define BIOS_WAIT_FLAG_POINTER 0x498 /* uint32_t FAR 16:16 */
#define BIOS_WAIT_FLAG_COUNT 0x49c /* uint32_t */
#define BIOS_WAIT_FLAG_ACTIVE 0x4a0
#define BIOS_WAIT_FLAG_TEMP 0x4a1
#define BIOS_LAN_BYTES 0x4a1 /* uint8_t[7] */
#define BIOS_VIDEO_SAVEPTR 0x4a8 /* uint32_t FAR 16:16 */
#define BIOS_PRINT_SCREEN_FLAG 0x500
#define BIOS_VIDEO_SAVEPTR 0x4a8
#define CURSOR_SCAN_LINE_NORMAL (0x6)
#define CURSOR_SCAN_LINE_INSERT (0x4)
#define CURSOR_SCAN_LINE_END (0x7)