to make life easier for emacs, backspace will send $7f instead of $08.

command-backspace will send $08 (as will Control-H).
If you have an extended keyboard, delete will also send $08.
(mame uses delete to toggle keyboard mode so it's not yet tested).
This commit is contained in:
Kelvin Sherlock 2022-01-29 15:43:08 -05:00
parent 18daf26568
commit 1f7e3b3b4c

View File

@ -23,6 +23,27 @@ kmUpdateMod equ %0010_0000
kmOption equ %0100_0000
kmCommand equ %1000_0000
*
* The vt100 has a delete key and a backspace key.
* delete sends 0x7f. backspace sends 0x08.
* stty is general set so 0x7f is the erase character.
* termcaps generally claim 0x08 is the backspace character.
*
* emacs, by default, thinks 0x08 ( ^H ) means you want help.
*
* so, backspace will send 0x7f. control-H or command-backspace
* will send 0x08.
*
* TODO - keys
* command-L -> local/online mode?
* command-Q -> quit
* command-K -> clear screen?
* command-R -> reset settings
*
dispatch
jmp write_modem
@ -72,9 +93,9 @@ keypress ent
bra :send
:notctrl
cmp #$7f ; delete - special case
bne :send
lda #$08
* cmp #$7f ; delete - special case
* bne :send
* lda #$08
:send jmp dispatch
command ; or option
@ -105,7 +126,8 @@ command ; or option
:MIN equ 49
:MAX equ 52
:bs jmp dispatch ;
:bs lda #$08
jmp dispatch ;
:lf lda #$0a
jmp dispatch
@ -119,19 +141,28 @@ command ; or option
keypad
* todo - keypad enters honors LNM?
lda key
cmp #:MIN
blt :rts
cmp #:MAX+1
bcs :rts
bcs :other
sec
sbc #:MIN
asl
tax
jmp (:table,x)
:other
* keypad delete key ($75 aka 'u') will send as backspace ($08)
*
cmp #'u'
bne :rts
lda #$08
jmp dispatch
:rts rts
:MIN equ 13
@ -182,9 +213,9 @@ keypad
dw digit ; 7
dw digit ; 8
dw digit ; 9
dw $0 ; :
dw $0 ; ;
dw $0 ; <
dw :rts ; :
dw :rts ; ;
dw :rts ; <
dw pf2 ; = PF2 -> ESC Q