; DIRPAT3 Install program (c) ESKAY
;
z80
request syslib
;
cr equ 0dh
lf equ 0ah
;
cseg
;
start: ld sp,stack
call print##
cr,lf,lf
'DIRPAT v3.xx INSTALL program (c) 1985 ESKAY',cr,lf,lf,0
ld de,record
ld c,26
call bdos##
ld de,fcb
call f$open##
jr z,..ok.
call print##
'ERROR: DIRPAT.COM not found!',cr,lf,7,0
rst 0
;
.ok.: call f$read##
.cls: call print##
cr,lf
'Current CLS bytes : ',0
ld hl,cls
call get5
call print##
cr,lf,lf
'Current cursor positioning bytes : ',0
ld hl,curpos
call get5
call print##
cr,lf,lf
'Is Row or Column first? (R or C) ',0
call capin##
cp 'R'
ld a,0
jr z,.row.
dec a
row.: ld (xory),a
call print##
cr,lf,lf
'Enter cursor offset in hex (normally 20H) ',0
call bbline##
call eval16
ld (coffs),a
call print##
cr,lf,lf
'Do you want continuous time-display on the screen? (Y or N) ',0
call capin##
cp 'Y'
ld a,0ffh
jr z,..to.
inc a
.to.: ld (timeon),a
call print##
cr,lf,lf
'Inexplicably, WYSE-50 terminals get confused at high baud rates',cr,lf
'with DIRPAT cursor addressing. If you wish to add delays to',cr,lf
'Prevent erratic cursor movements, enter "Y", else enter "N" : ',0
call capin##
cp 'Y'
ld a,0ffh
jr z,..dl.
inc a
.dl.: ld (wyse),a
call print##
cr,lf,lf
'Thanks.',0
ld de,fcb
ld hl,0
ld (fcb+32),hl
ld (fcb+34),hl
ld c,34
call bdos##
call print##
' DIRPAT.COM installed.',cr,lf,lf,0
rst 0
;
get5: ld b,5
push hl
clsd.: ld a,(hl)
call pa2hc##
ld a,' '
call cout##
inc hl
djnz .clsd.
call print##
cr,lf
'Enter new bytes in hex, one at a time, '
'fill remainder with 0:',cr,lf,0
pop hl
ld b,5
clg..: push hl
call print##
cr,lf,': ',0
call bbline##
call eval16##
pop hl
ld (hl),a
inc hl
djnz .clg..
ret
;
dseg
;
fcb: db 0,'DIRPAT COM',0,0,0,0
ds 24
ds 60
stack equ $
;
record equ $
ds 2
cls: db 1bh,'E',0,0,0,0 ; clear screen
curpos: db 1bh,'F',0,0,0,0 ; cursor pos
xory: db 0 ; 0=xy, nz=yx
coffs: db 32 ; cursor offset
timeon: db 0
wyse: db 0
;
end
RPAT cursor addressing. If you wish to add delays to',
