Sharp MZ-800 - 3.2 Getting to Know the Keyboard

MZ-800
b) Write format register (WR) (OUT & CC)
• WMD 0 - 2 .....
Selects the logical operational mode for read-
modify-write .
• B/A (NOTE)
Standard MZ-800 ---> "0": Frame A access .....
• I, Il, rn, IV .....
Frame A is accessed for the display mode.
"1": Frame B access .....
Color plane designation
Frame B is accessed for the display mode.
Write
mode
'2 1 0 IV ill IT VD : VRAM data
WMD B/",: Color plane Function [WD: Write data 1
-SINGLE-- . +- 0 0 1 0 (*) 0/1 -~ 0/1- -----lc~~~I-;ne of;;1~WD, wri;---------
WRITE ~ 320 x 200, i Color plane of "0": Fixed
o r 0- --t
r
-
1
-
11
Frame A: 0 I o~T, ~/~ +,1,'~/01, - 4/16 colors jcolor pl~~~--;:;-0Y-WD <:BVO--------
OIl I 640 x 200, ,Color plane of "0": Fixed
----t--- ---j ,-- t---r- --;1 I---~' ---------- -------.-------
o I __ ~ 01 Frame B: 1 :_~/~ .j,_~l_i_ 0~~0/1: 1/4 colors ll~-:;~~;~~ ~:~~:::F~; VD ______ _
0-1 I 1 I ,I 1 iColorplaneof"l":WD.VD
-,1 -~ -Iu=i=- ('F~:: i ;;;;:-;oo@, ! :;;~~:~~';:f::~~,:::',:,O;--' -------
I r-~--. _ 0/~_+0/-1_·1i _ x--~--~"li ~2~I:r~o~_~ (Character write to the graphic plane)
'L x I, 0/1 ~ OIl OIl i OIl I. .' I Color plane of "1": WD
i I , , 16 colors I
x i_. 0 __ ---l+I---x-i--lI----~--t~ ! 0/~r~4~-=-;~ ®, 1 Calor plane of "0": Writes "0".
i I ___ ~ __ J __ ><....t~~><_l_~l-~~olor ~ Calor plane of "X": Fixed
1 I x I x ,011 I x i OIl! 640 x 200, !
to-~~_--- I ~-t-~~ i 0/1 i
0/
132: :o~:~s ®, -r-~rites only- bi.t "1 ~:-~-;-~~ i;;~pecific calor.
I f-- 1 ___ ~ _9Q .<>'~J.-~-' x -i-- ~<:<>Iors ~ (Character write to graphic plane)
I
I
x I OIl 11 0/1 I OIl T;1 I 3~~ x 1
200
,
I Calor plane of "1": WD + VD
x
I t' I co ors 1
r- - "0-- -r -;-:--~- -;-1o~1 ~~~-;;-~®~-! Calor plane of "0": WD· VD
r- --1-- ~ x I OIl 1 x ! x 1 calor, ® ! Calor plane of "X": Fixed
I I i
--"'-r-- - ----r----t------- 1
EXOR
OR
RESET
REPLACE
PSET
o
,
I
MZ-700
1
0
o
x i x : OIl I x I OIl! 640 x 200, 11
__ +- _____ ! _ 1I 1I I I 4 ~?Iors . _____ _
o 0 I 0 I 0 I 0 I 1 I MZ-700 ' Writes WD into the DATA, ATB, and CG area.
(*) Refer to Table-l display frame
NOTES:
•
Write for the non-existing VRAM are not assured.
• The above parameter has to be set up for the MZ-700
mode.
• BI A must be set to "0" for the standard version
MZ-800.
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