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jamieiles |
// Copyright Jamie Iles, 2017
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//
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// This file is part of s80x86.
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//
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// s80x86 is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// s80x86 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with s80x86. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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struct __attribute__((packed)) bios_data_area {
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unsigned short com_addresses[4];
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unsigned short lpt_addresses[4];
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unsigned short equipment_list;
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unsigned char ir_kbd_error_count;
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unsigned short mem_kbytes;
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unsigned char reserved1;
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unsigned char ps2_bios_control;
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unsigned char keyboard_flags[2];
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unsigned char keypad_entry;
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unsigned short kbd_buffer_head;
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unsigned short kbd_buffer_tail;
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unsigned short kbd_buffer[16];
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unsigned char drive_recalibration_status;
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unsigned char diskette_motor_status;
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unsigned char motor_shutoff_count;
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unsigned char diskette_status;
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unsigned char nec_diskette_motor_status[7];
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unsigned char video_mode;
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unsigned short num_screen_cols;
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unsigned short video_regen_buffer_bytes;
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unsigned short video_regen_offset;
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unsigned short cursor_offsets[8];
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unsigned char cursor_end;
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unsigned char cursor_start;
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unsigned char active_page;
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unsigned short crt_controller_base;
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unsigned char crt_mode_control;
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unsigned char cga_pallette_mask;
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unsigned char cassette_take_ctrl[5];
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unsigned short timer_counter_low;
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unsigned short timer_counter_high;
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unsigned char clock_rollover;
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unsigned char break_hit;
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unsigned short soft_reset_flag;
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unsigned char hard_disk_status;
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unsigned char num_hard_disks;
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unsigned char fixed_disk_control;
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unsigned char fixed_disk_controller_port;
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unsigned long parallel_timeout;
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unsigned long serial_timeout;
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unsigned short keyboard_buffer_start;
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unsigned short keyboard_buffer_end;
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unsigned char last_screen_row;
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};
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