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config_v1.1.s
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config_v1.1.s
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RST0: EQU 0x0000
BDOS: EQU 0x0005
CON_READ: EQU 0x01
CON_WRITE: EQU 0x02
CON_RAWIO: EQU 0x06
CON_RAWIO_PEEK_CHAR: EQU 0xff
CON_WRITESTR: EQU 0x09
DRV_SET: EQU 0x0E
BIOS_config_byte: EQU 0xfa34
BIOS_WRITE_fa2a: EQU 0xfa2a
BIOS_SETSEC_fa21: EQU 0xfa21
BIOS_SETTRK_fa1e: EQU 0xfa1e
BIOS_SETDMA_fa24: EQU 0xfa24
io_port_00_serial_baud_rate: EQU 0x00
changes_pending_yes: EQU 0x00
changes_pending_no: EQU 0xff
write_safe_yes: EQU 0xff
write_safe_no: EQU 0x00
; ASCII codes
no_key: EQU 0x00
line_feed: EQU 0x0a
form_feed: EQU 0x0c
return_key: EQU 0x0d
clear_screen: EQU 0x1a
escape: EQU 0x1b
home: EQU 0x1e
ORG 0x0100
JP main_menu_reset
move_cursor:
; Output an 0xff terminated string in DE to console
LD A, (DE)
CP 0xff
RET Z
PUSH DE
LD C, CON_WRITE
LD E, A
CALL BDOS
POP DE
INC DE
JR move_cursor
main_menu_reset:
; The config will be stored in B:
LD A, 0x1
LD (disk_drive_destination), A
; Let's mark that there are no changes to save
LD A, changes_pending_no
LD (changes_pending), A
main_menu:
; Show the main menu and select an option
LD C,CON_WRITESTR
LD DE,msg_menu_header
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_main_menu
CALL BDOS
LD C,CON_READ
CALL BDOS
PUSH AF
LD C,CON_WRITESTR
LD DE,msg_new_line
CALL BDOS
POP AF
CP '1'
JP Z,menu_1_iobyte
CP '2'
JP Z,menu_2_write_safe
CP '3'
JP Z,menu_3_cursor_keys
CP '4'
JP Z,menu_4_keypad
CP '5'
JP Z,menu_5_baud_rate
CP escape
JP Z,menu_exit
JP main_menu
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; OPTION 5: Configure the serial port baud rate
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
menu_5_baud_rate:
; Show the baud rate menu and select an option
LD C,CON_WRITESTR
LD DE,msg_menu_header
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_baud_rate_menu
CALL BDOS
LD C,CON_READ
CALL BDOS
PUSH AF
LD C,CON_WRITESTR
LD DE,msg_new_line
CALL BDOS
POP AF
CP '1'
JP Z,menu_5_baud_rate_1_help
CP escape
JP Z,main_menu
CP '2'
JP Z,menu_5_baud_rate_2_change
JP menu_5_baud_rate
menu_5_baud_rate_2_change:
; Show the baud rate change menu
LD C,CON_WRITESTR
LD DE,msg_baud_rate_change_menu
CALL BDOS
baud_rate_selection_reset:
LD A,0x0
LD (current_selection),A
LD C,CON_WRITESTR
LD DE,msg_form_feeds
CALL BDOS
baud_rate_selection:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,baud_rate_selection
CP escape
JR Z,menu_5_baud_rate
CP line_feed
JP Z,baud_rate_selection_next
CP return_key
JR NZ,baud_rate_selection
; We have a selection
LD A,(current_selection)
CP 0x10
JP NC,baud_rate_selection
; The selection is valid
; Update the copy of the BIOS with the baud rate
LD (bios_content_baud_rate),A
; Configure the serial port
OUT (io_port_00_serial_baud_rate),A
; Mark that there are changes to save
XOR A
LD (changes_pending),A
JP menu_5_baud_rate
baud_rate_selection_next:
; Select the next baud rate
LD A,(current_selection)
INC A
LD (current_selection),A
; If we are past the last option, restart
CP 0x11
JR Z,baud_rate_selection_reset
LD C,CON_WRITESTR
LD DE,msg_line_feed
CALL BDOS
JR baud_rate_selection
current_selection:
; Variable uses on all the sections
db 0h
msg_baud_rate_change_menu:
db clear_screen
db " 50\r\n"
db " 75\r\n"
db " 110\t\tMove the cursor to the baud rate which\r\n"
db " 134.5\r\n"
db " 150\t\tyou want to use by typing the [LINE FEED] key.\r\n"
db " 300\r\n"
db " 600\r\n"
db " 1200\t\tWhen the cursor is at the rate you want\r\n"
db " 1800\r\n"
db " 2000\t\ttype the RETURN key and it will be set.\r\n"
db " 2400\r\n"
db " 3600\t\tThe new baud rate will be effective now.\r\n"
db " 4800\r\n"
db " 7200\r\n"
db " 9600\r\n"
db "19200\r\n"
db "Type [ESC] key to return to the previous menu (no changes)\r\n\r\n\n$"
msg_form_feeds:
db home,form_feed,form_feed,form_feed,form_feed,form_feed,"$"
msg_line_feed:
db "\n$"
menu_5_baud_rate_1_help:
; Show the baud rate help screen
LD C,CON_WRITESTR
LD DE,msg_help_baud_rate
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_press_any_key
CALL BDOS
LD C,CON_READ
CALL BDOS
JP menu_5_baud_rate
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; OPTION 4: Configure the keypad mappings
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
menu_4_keypad:
; Show the keypad menu and select an option
LD C,CON_WRITESTR
LD DE,msg_menu_header
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_keypad_menu
CALL BDOS
LD C,CON_READ
CALL BDOS
PUSH AF
LD C,CON_WRITESTR
LD DE,msg_new_line
CALL BDOS
POP AF
CP '1'
JP Z,menu_4_keypad_1_help
CP '2'
JP Z,menu_4_keypad_2_change
CP escape
JP Z,main_menu
JP menu_4_keypad
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; HEX INPUT:
; Used on options 3 and 4 to retreive an hex value
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
key_selection_input:
; Set the next key to map
LD A,(current_selection)
INC A
LD (current_selection),A
; Retrieve the HEX mapping
CALL key_edit_H
; Store the key if there is data
JR NZ,store_key_change
; Return to the sequence if we had a line feed
CP line_feed
RET Z
; We are done, back to the previous menu
POP HL
LD HL,(menu_escape_address)
JP (HL)
; unused
db 0xC8
store_key_change:;
; Mark that there are changes to save
LD A,changes_pending_yes
LD (changes_pending),A
; Calculate the position on the BIOS copy to store the mapping
; HL has the section and we offset with the selection - 1
LD DE,0x0
LD A,(current_selection)
DEC A
LD E,A
LD HL,(key_config_base_address)
ADD HL,DE
LD A,C
; Store it
LD (HL),A
RET
key_edit_H:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,key_edit_H
CP line_feed
RET Z
CP escape
RET Z
; If less than '0' ignore the key press
CP '0'
JR C,key_edit_H
; Is it '9' or less?
CP '9' + 1
; Yes, it is a decimal digit between 0 and 9
JR C,key_decimal_digit_H
; No, it must be A to F, if not we will ignore the key press
; To lowercase
RES 0x5,A
CP 'F' + 1
JR NC,key_edit_H
CP 'A'
JR C,key_edit_H
; It is an hex digit, echo it
PUSH AF
LD C,CON_WRITE
LD E,A
CALL BDOS
POP AF
; substract 7 to have A-F just after 0-9
SUB 'A' - '9' - 1
JR key_process_digit_H
key_decimal_digit_H:
; It is a decimal digit, echo it
PUSH AF
LD C,CON_WRITE
LD E,A
CALL BDOS
POP AF
key_process_digit_H:
; Convert the ASCII digit to a number
SUB '0'
; Set it as the high nibble
RLC A
RLC A
RLC A
RLC A
AND 0xf0
PUSH AF
key_edit_L:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,key_edit_L
CP line_feed
JR Z,key_edit_L_cancel
CP escape
JR NZ,key_edit_L_continue
key_edit_L_cancel:
POP HL
RET
key_edit_L_continue:
; If less than '0' ignore the key press
CP '0'
JR C,key_edit_L
; Is it '9' or less?
CP '9' + 1
; Yes, it is a decimal digit between 0 and 9
JR C,key_decimal_digit_L
; No, it must be A to F, if not we will ignore the key press
; To lowercase
RES 0x5,A
CP 'F' + 1
JR NC,key_edit_L
CP 'A'
JR C,key_edit_L
PUSH AF
; It is an hex digit, echo it
LD C,CON_WRITE
LD E,A
CALL BDOS
POP AF
; substract 7 to have A-F just after 0-9
SUB 'A' - '9' - 1
JR key_process_digit_L
key_decimal_digit_L:
; It is a decimal digit, echo it
PUSH AF
LD C,CON_WRITE
LD E,A
CALL BDOS
POP AF
key_process_digit_L:
; Convert the ASCII digit to a number
SUB '0'
; Set it as the low nibble
AND 0xf
LD C,A
POP AF
OR C
LD C,A
RET NZ
INC A
RET
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; OPTION 4: Configure the keypad mappings (continued)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
menu_4_keypad_2_change:
; Set the address of the previous menu
LD HL,menu_4_keypad
LD (menu_escape_address),HL
; Set the address of the key mapping to change
LD HL,bios_content_keypad_map
LD (key_config_base_address),HL
; Show the menu
LD C,CON_WRITESTR
LD DE,msg_keypad_change_menu
CALL BDOS
keypad_sequence:
; Move through the keypad sequence
LD A,0x0
LD (current_selection),A
LD DE,keypad_options_positions
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+5
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+10
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+15
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+20
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+25
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+30
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+35
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+40
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+45
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+50
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+55
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+60
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+65
CALL move_cursor
CALL key_selection_input
LD DE,keypad_options_positions+70
CALL move_cursor
keypad_selection_esc:
; The cursor is on the top of the ESC option
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,keypad_selection_esc
CP escape
JP Z,menu_4_keypad
CP line_feed
JR NZ,keypad_selection_esc
; Restart the sequence
JP keypad_sequence
msg_keypad_change_menu:
db clear_screen
db "-----------------------------\tMove the cursor to the key you wish\r\n"
db ": : : : :\r\n"
db ": 7 : 8 : 9 : - :\tto change. Use the [LINE FEED] key.\r\n"
db ": : : : :\r\n"
db ": 37 : 38 : 39 : 2D :\tThe default HEXADECIMAL code will be\r\n"
db ";------;------;------;------:\r\n"
db ": : : : :\tthe number which is flashing.\r\n"
db ": 4 : 5 : 6 : , :\r\n"
db ": : : : :\r\n"
db ": 34 : 35 : 36 : 2C :\tWhen you reach the key you wish to change.\r\n"
db ":------:------:------:------:\r\n"
db ": : : : :\tType in the new HEXADECIMAL code.\r\n"
db ": 1 : 2 : 3 : :\r\n"
db ": : : : :\r\n"
db ": 31 : 32 : 33 : ENTER:\t(* NOTE: you must enter both digits *)\r\n"
db ":------:------:------: :\r\n"
db ": : : 0D :\t(* to change the code. *)\r\n"
db ": 0 : . : :\r\n"
db ": : : :\r\n"
db ": 30 : 2E : : Type the [ESC] key to return to the previous menu\r\n"
db "-----------------------------\r\n$"
keypad_options_positions:
db 0x1B,"=3&",0xFF
db 0x1B,"=.#",0xFF
db 0x1B,"=.*",0xFF
db 0x1B,"=.1",0xFF
db 0x1B,"=)#",0xFF
db 0x1B,"=)*",0xFF
db 0x1B,"=)1",0xFF
db 0x1B,"=$#",0xFF
db 0x1B,"=$*",0xFF
db 0x1B,"=$1",0xFF
db 0x1B,"=$8",0xFF
db 0x1B,"=)8",0xFF
db 0x1B,"=08",0xFF
db 0x1B,"=31",0xFF
db 0x1B,"=3I",0xFF
menu_4_keypad_1_help:
; Show the help for keypad configuration
LD C,CON_WRITESTR
LD DE,msg_help_keypad
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_press_any_key
CALL BDOS
LD C,CON_READ
CALL BDOS
JP menu_4_keypad
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; OPTION 3: Configure the corsor keys mappings
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
menu_3_cursor_keys:
; Show the cursor keys menu and select the option
LD C,CON_WRITESTR
LD DE,msg_menu_header
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_cursor_keys_menu
CALL BDOS
LD C,CON_READ
CALL BDOS
PUSH AF
LD C,CON_WRITESTR
LD DE,msg_new_line
CALL BDOS
POP AF
CP '1'
JP Z,menu_3_cursor_keys_1_help
CP escape
JP Z,main_menu
CP '2'
JP Z,menu_3_cursor_keys_2_change
JR menu_3_cursor_keys
menu_3_cursor_keys_2_change:
; Set the address of the keypad mapping to change
LD HL,bios_content_arrow_key_map
LD (key_config_base_address),HL
; Set the address of the previous menu
LD HL,menu_3_cursor_keys
LD (menu_escape_address),HL
; Show the menu
LD C,CON_WRITESTR
LD DE,msg_cursor_keys_change_menu
CALL BDOS
cursor_keys_sequence:
; Move through the cursor keys sequence
LD A,0x0
LD (current_selection),A
LD DE,cursor_keys_options_positions
CALL move_cursor
CALL key_selection_input
LD DE,cursor_keys_options_positions+5
CALL move_cursor
CALL key_selection_input
LD DE,cursor_keys_options_positions+10
CALL move_cursor
CALL key_selection_input
LD DE,cursor_keys_options_positions+15
CALL move_cursor
CALL key_selection_input
LD DE,cursor_keys_options_positions+20
CALL move_cursor
cursor_keys_selection_esc:
; The cursor is on top of the ESC option
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,cursor_keys_selection_esc
CP line_feed
JP Z,cursor_keys_sequence
CP escape
JR NZ,cursor_keys_selection_esc
JP menu_3_cursor_keys
; Restart the sequence
JP cursor_keys_sequence
menu_3_cursor_keys_1_help:
; Show the help for cursor keys configuration
LD C,CON_WRITESTR
LD DE,msg_help_cursor_keys
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_press_any_key
CALL BDOS
LD C,CON_READ
CALL BDOS
JP menu_3_cursor_keys
msg_cursor_keys_change_menu:
db clear_screen
db "\r\n"
db "\r\n"
db " ---------------------------------\r\n"
db " : : : : :\r\n"
db " : ^ : : : <- : -> :\r\n"
db " : : : v : : :\r\n"
db " : : : : :\r\n"
db " : 0B : 0A : 08 : 0C :\r\n"
db " ---------------------------------\r\n"
db "\r\n"
db "\r\n"
db " Type the [ESC] key to return to the previous menu.\r\n"
db "\r\n"
db " Move the cursor to the key which you wish to change by pressing\r\n"
db " the [LINE FEED] key. The default HEXADECIMAL code will be the flashing number.\r\n"
db " Type the new HEXADECIMAL number you wish to assign to the key.\r\n"
db "\r\n"
db " You must type both digits to effect the change.\r\n\r\n$"
cursor_keys_options_positions:
db 0x1B,"='/",0xFF
db 0x1B,"='7",0xFF
db 0x1B,"='?",0xFF
db 0x1B,"='G",0xFF
db 0x1B,"=+2",0xFF
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; OPTION 2: Configure the write safe flag
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
menu_2_write_safe:
; Show the menu and select the option
LD C,CON_WRITESTR
LD DE,msg_menu_header
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_write_safe_menu
CALL BDOS
LD C,CON_READ
CALL BDOS
PUSH AF
LD C,CON_WRITESTR
LD DE,msg_new_line
CALL BDOS
POP AF
CP '1'
JP Z,menu_2_write_safe_1_help
CP '2'
JP Z,menu_2_write_safe_2_change
CP escape
JP Z,main_menu
JP menu_2_write_safe
menu_2_write_safe_2_change:
; Show the change menu
LD C,CON_WRITESTR
LD DE,msg_write_safe_change_menu
CALL BDOS
; There is a sequence of three states: YES, NO and ESC
write_safe_yes_option:
; We are on the YES option
LD DE,write_safe_options_position_yes
CALL move_cursor
write_safe_yes_option_loop:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,write_safe_yes_option_loop
CP line_feed
; Line feed: go to the NO option
JR Z,write_safe_no_option
CP escape
; Escape: go back to the menu
JP Z,menu_2_write_safe
CP return_key
JR NZ,write_safe_yes_option
; Return: select the YES option
LD A,write_safe_yes
LD (bios_content_config_byte),A
LD A,changes_pending_yes
LD (changes_pending),A
JP menu_2_write_safe
write_safe_no_option:
; We are on the NO option
LD DE,write_safe_options_position_no
CALL move_cursor
write_safe_no_option_loop:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,write_safe_no_option_loop
CP line_feed
; Line feed go to the ESC option
JR Z,write_safe_esc_option
CP escape
; Escape: go back to the menu
JR Z,menu_2_write_safe
CP return_key
JR NZ,write_safe_no_option
; Return: select the NO option
LD A,write_safe_no ; = changes_pending_yes
LD (bios_content_config_byte),A
LD (changes_pending),A
JP menu_2_write_safe
write_safe_esc_option:
; We are on the ESC option
LD DE,write_safe_options_position_esc
CALL move_cursor
write_safe_esc_option_loop:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,write_safe_esc_option_loop
CP escape
; Escape: go back to the menu
JP Z,menu_2_write_safe
CP line_feed
JP NZ,write_safe_esc_option
; Line feed: go to the YES option
JP write_safe_yes_option
menu_2_write_safe_1_help:
; Show the help for write safe flag
LD C,CON_WRITESTR
LD DE,msg_help_write_safe
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_press_any_key
CALL BDOS
LD C,CON_READ
CALL BDOS
JP menu_2_write_safe
msg_write_safe_change_menu:
db clear_screen
db "\r\n"
db "\r\n"
db "\r\n"
db "Yes I want Write Safe enabeled.\r\n"
db "\r\n"
db "No do not enable Write Safe.\tThis is the default mode on your KAYPRO II .\r\n"
db "\r\n"
db "Type the [ESC] key to return to the previous menu.\r\n"
db "\r\n"
db "\r\n"
db "Use the [LINE FEED] key to move the cursor to the mode\r\n"
db "which you wish to use and then type the [RETURN] key to\r\n"
db "enter your choice.\r\n"
db "\r\n"
db "**** PLEASE read the help file before you enable Write Safe. ****\r\n"
db "**** If you do not understand it ASK your dealer. ****\r\n$"
write_safe_options_position_yes:
db 0x1B,"=# ",0xFF
write_safe_options_position_no:
db 0x1B,"=% ",0xFF
write_safe_options_position_esc:
db 0x1B,"='+",0xFF
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; OPTION 1: Configure the IOBYTE
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
menu_1_iobyte:
; Show the menu and select the option
LD C,CON_WRITESTR
LD DE,msg_menu_header
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_iobyte_menu
CALL BDOS
LD C,CON_READ
CALL BDOS
PUSH AF
LD C,CON_WRITESTR
LD DE,msg_new_line
CALL BDOS
POP AF
CP '1'
JP Z,menu_1_iobyte_1_help
CP '2'
JP Z,menu_1_iobyte_2_change
CP escape
JP Z,main_menu
JP menu_1_iobyte
menu_1_iobyte_2_change:
LD C,CON_WRITESTR
LD DE,msg_iobyte_change_menu
CALL BDOS
; Set to the address of the IOBYTE on the BIOS copy
LD HL,bios_content_io_byte
LD (key_config_base_address),HL
; Set the address of the previous menu
LD HL,menu_1_iobyte
LD (menu_escape_address),HL
iobyte_sequence_CON:
LD A,0x0
LD (current_selection),A
; Two options to set CON
LD DE,iobyte_options_position_CON_CRT
CALL move_cursor
CALL iobyte_selection_input
LD DE,iobyte_options_position_CON_TTY
CALL move_cursor
CALL iobyte_selection_input
iobyte_sequence_LST:
; Two options to set LST
LD DE,iobyte_options_position_LST_LPT
CALL move_cursor
CALL iobyte_selection_input
LD DE,iobyte_options_position_LST_TTY
CALL move_cursor
CALL iobyte_selection_input
iobyte_sequence_esc:
LD DE,iobyte_options_position_esc
CALL move_cursor
iobyte_selection_esc:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,iobyte_selection_esc
CP escape
; Escape: go back to the menu
JP Z,menu_1_iobyte
CP line_feed
; Line feed: restart the sequence
JR NZ,iobyte_selection_esc
JP iobyte_sequence_CON
iobyte_selection_input:
LD C,CON_RAWIO
LD E,CON_RAWIO_PEEK_CHAR
CALL BDOS
CP no_key
JR Z,iobyte_selection_input
CP escape
; No escape, process the key press
JR NZ,iobyte_process_key
; Escape: go back to the menu
POP HL
LD HL,(menu_escape_address)
JP (HL)
iobyte_process_key:
CP line_feed
JR NZ,iobyte_process_key_continue
; Line feed: continue the sequence
LD A,(current_selection)
INC A
LD (current_selection),A
RET
iobyte_process_key_continue:
CP return_key
JR NZ,iobyte_selection_input
; Return key: select the option
LD A,changes_pending_yes
LD (changes_pending),A
; Calculate the address of the function to call. The
; address is in:
; selection_id*2 + iobyte_options_handlers
LD A,(current_selection)
ADD A,A ; A = A*2
LD DE,0x0
LD E,A
LD HL,iobyte_options_handlers
ADD HL,DE
; Read low byte
LD E,(HL)
; Read high byte
INC HL
LD D,(HL)
EX DE,HL
LD DE,(key_config_base_address)
JP (HL)
iobyte_options_handlers:
dw iobyte_option_handler_CON_CRT
dw iobyte_option_handler_CON_TTY
dw iobyte_option_handler_LST_LPT
dw iobyte_option_handler_LST_TTY
iobyte_option_handler_CON_CRT:
LD A,(DE)
; iobyte CONSOLE = 01-CRT
RES 0x1,A
SET 0x0,A
LD (DE),A
; Continue on the LST options
LD HL,iobyte_sequence_LST
LD A,0x2
LD (current_selection),A
POP DE
JP (HL)
iobyte_option_handler_CON_TTY:
LD A,(DE)
; iobyte CONSOLE = 00-TTY
RES 0x0,A
RES 0x1,A
LD (DE),A
; Continue on the LST options (just the next one)
LD A,(current_selection)
INC A
LD (current_selection),A
RET
iobyte_option_handler_LST_LPT:
LD A,(DE)
; iobyte LIST = 10-LPT
RES 0x6,A
SET 0x7,A
LD (DE),A
; Continue on the ESC option
LD HL,iobyte_sequence_esc
JP (HL)
iobyte_option_handler_LST_TTY:
LD A,(DE)
; iobyte LIST = 00-TTY
RES 0x7,A
RES 0x6,A
LD (DE),A
; Continue on the ESC option
RET
menu_1_iobyte_1_help:
; Display the help
LD C,CON_WRITESTR
LD DE,msg_help_iobyte
CALL BDOS
LD C,CON_WRITESTR
LD DE,msg_press_any_key
CALL BDOS
LD C,CON_READ
CALL BDOS
JP menu_1_iobyte
msg_iobyte_change_menu:
db clear_screen
db "\r\n"
db "\r\n"
db "\tDefault settings\tPosibile changes\r\n"
db "\t----------------\t----------------\r\n"
db "\r\n"
db "\tCON:=CRT:\t\tCON:=TTY:\tType the [LINE FEED] key to \r\n"
db "\tLST:=LPT:\t\tLST:=TTY:\tmove the cursor to the mode \r\n"
db "\tPUN:=TTY:\t\t- none -\tyou wish to select.\r\n"
db "\tRDR:=TTY:\t\t- none -\tThen the RETURN key to enter\r\n"
db "\t\t\t\t\t\tyour selection.\r\n"
db "\tType the [ESC] key to return to the previous menu.\r\n"
db "\r\n"
db "* CON: If you chose CON:=TTY: then all input and output will be through the\r\n"
db "\tserial connector on the back of your KAYPRO II instead of through the\r\n"
db "\tkeyboard and the CRT.\r\n"
db "\r\n"
db "\r\n"
db "* LST:\tThis setting will decide wether the output directed at a printer\r\n"
db "\twill go through the LPT: (parallel connector) or to the\r\n"
db "\tTTY: (serial connector).\r\n$"
iobyte_options_position_CON_CRT:
db 0x1B,"=%,",0xFF
iobyte_options_position_CON_TTY:
db 0x1B,"=%D",0xFF
iobyte_options_position_LST_LPT:
db 0x1B,"=&,",0xFF
iobyte_options_position_LST_TTY:
db 0x1B,"=&D",0xFF
iobyte_options_position_esc:
db 0x1B,"=*3",0xFF
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; EXIT AND SAVE
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
menu_exit:
LD A,(changes_pending)
CP changes_pending_no
; If changes are pending, ask the user if he wants to save them
JP NZ,save_changes_menu
exit_without_saving_changes:
; Reset the BIOS config in memory (not on disk)
; Why?
LD A,write_safe_no
LD (BIOS_config_byte),A
JP Z,RST0