IBM XT 5160 Technical Reference page 210

IBM Personal Comput.er MACRO Assembler Version 2.00
VIDEO ---- 01/10/86 VIDEO DISPLAY BIOS
ASSUME CS:CODE,DS:DATA,ES:NOTHING
BX, CX, OX, S I ,0 I ,BP, SP, OS, ES, SS PRESERVED OUR I NG CALLS EXCEPT FOR
BX, CX, OX RETURN VALUES ON FUNCTI ONS 03H, 04H, ODH AND ODH. ON ALL CALLS
AX IS MODIFIED.
5-63
; TABLE OF ROUTINES WITHIN VIDEO I/O
; RESERVED
; RESERVED
; RESERVED
; CASE 13H, WRITE STRING
VIDEO (01/10/86)
SET MODE
SET-CTYPE
SET-CPOS
READ CURSOR
READ-LPEN
ACT 01 SP PAGE
SCROLL UP
SCROLL-DOWN
READ AC CURRENT
WR I TE AC CURRENT
WR I TE-C CURRENT
SET COLOR
WRITE DOT
READ DOT
WRITE TTY
VIDEO-STATE
V IDEO-RETURN
V IDEO-RETURN
V IDEO-RETURN
WR I TE:STR I NG
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
OFFSET
S-Ml
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
OW
EQU
( AH) = ODH READ DOT
(OX) = ROW NUMBER
( CX ) = COLUMN NUMBER
( AL ) RETURNS THE DOT READ
ASC I I TELETYPE ROUT I NE FOR OUTPUT
(AH I = OEH WR I TE TELETYPE TO ACT I VE PAGE
(ALl = CHAR TO WR I TE
(BL I = FOREGROUND COLOR I N GRAPH I CS MODE
NOTE -- SCREEN WIDTH I S CONTROLLED BY PREV IOUS MODE SET
(AH I = OFH CURRENT V IDEO STATE
RETURNS THE CURRENT V IDEO STATE
(ALl = MODE CURRENTLY SET ( SEE ( AH I = OOH FOR EXPLANAT I ON )
( AH) = NUMBER OF CHARACTER COLUMNS ON SCREEN
(BH) = CURRENT ACTI VE 0 I SPLAY PAGE
(AH I = 10H RESERVED
(AH) = 11 H RESERVED
( AH) = 12H RESERVED
(AHI = 13H WRITE STRING
ES:BP - POINTER TO STRING TO BE WRITTEN
CX - LENGTH OF CHARACTER STR I NG TO WR I TTEN
OX - CURSOR POS I T I ON FOR STR I NG TO BE WR I TTEN
BH - PAGE NUMBER
(AL 1= OOH WR I TE CHARACTER STR I NG
BL - ATTR I BUTE
STR I NG I S <CHAR, CHAR, ••• ,CHAR>
CURSOR NOT MOVED
(AL) = 0 I H WR I TE CHARACTER STR I NG AND MOVE CURSOR
BL - ATTR I BUTE
STR I NG I S <CHAR, CHAR, ••• ,CHAR>
CURSOR I S MOVED
( AL ) = 02H WR I TE CHARACTER AND ATTR I BUTE STR I NG
( VAL I 0 FOR ALPHA MODES ONLY I
STRING IS <CHAR,ATTR,CHAR,ATTR.. ,CHAR,ATTR>
CURSOR I S NOT MOVED
(ALI = 03H WRITE CHARACTER AND ATTRIBUTE STRING AND MOVE CURSOR
( VAL I 0 FOR ALPHA MODES ONLY)
STRING IS <CHAR,ATTR,CHAR,ATTR •• ,CHAR,ATTR>
CURSOR I S MOVED
NOTE: CARR I AGE RETURN, LINE FEED, BACKSPACE, AND BELL ARE
TREATED AS COMMANDS RATHER THAN PR I NTABLE CHARACTERS.
(AH) = OCH WRITE OOT
(OX) = ROW NUMBER
( CX) = COLUMN NUMBER
( AL ) = COLOR VALUE
IF BIT 7 OF AL = 1, THEN THE COLOR V ALUE I S EXCLUS I VE
ORed WITH THE CURRENT CONTENTS OF THE DOT
(CX) = COUNT OF CHARACTERS TO WR I TE
( ALl = CHAR TO WR I TE
(BL) = ATTR I BUTE OF CHARACTER (ALPHA) / COLOR OF CHAR (GRAPH I CS I
SEE NOTE ON WR I TE OOT FOR BIT 7 OF BL = I.
(AH) = OAH WRITE CHARACTER ONLY AT CURRENT CURSOR POSITION
(BHI = DISPLAY PAGE (VALID FOR ALPHA MODES ONLY I
(CX) = COUNT OF CHARACTERS TO WR I TE
(ALI = CHAR TO WRITE
NOTE: USE FUNCTION (AHI= 09H IN GRAPHICS MODES
FOR READ/WRITE CHARACTER INTERFACE WHILE IN GRAPHICS MODE, THE
CHARACTERS ARE FORMED FROM A CHARACTER GENERATOR IMAGE
MAINTAINED IN THE SYSTEM ROM. ONLY THE 1ST 128 CHARS
ARE CONTA I NED THERE. TO READ / WR I TE THE SECOND 128 CHARS,
THE USER MUST INITIALIZE THE POINTER AT INTERRUPT IFH
(LOCATION 0007CHI TO POINT TO THE lK BYTE TABLE CONTAINING
THE CODE PO I NTS FOR THE SECONO 128 CHARS (128-255).
FOR WR I TE CHARACTER I NTERFACE I N GRAPH I CS MODE, THE REPL I CAT I ON FACTOR
CONTAINED IN (CXI ON ENTRY WILL PRODUCE VALID RESULTS ONLY
FOR CHARACTERS CONTAINED ON THE SAME ROW. CONTINUATION TO
SUCCEED I NG LINES WILL NOT PRODUCE CORRECTLY.
GRAPH I CS I NTERF ACE
(AH) = OBH SET COLOR PALETTE
(BH) = PALETTE COLOR 10 BEING SET (0-1271
( BL ) = COLOR VALUE TO BE USED WITH THAT COLOR 10
NOTE: FOR THE CURRENT COLOR CARD, TH I S ENTRY PO I NT HAS
MEANING ONLY FOR 320X200 GRAPHICS.
COLOR 10 = 0 SELECTS THE BACKGROUND COLOR (0-15 I
COLOR 10 = 1 SELECTS THE PALETTE TO BE USED:
o
= GREEN ( 1 I /RED(2) /YELLOW(31
I = CYAN( I) /MAGENTA(21 /WHITE(3)
IN 40X25 OR 80X25 ALPHA MODES, THE VALUE SET FOR
PALETTE COLOR 0 INDICATES THE BORDER COLOR
TO BE USED (VALUES 0-31, WHERE 16-31 SELECT
THE HIGH I NTENS I TY BACKGROUND SET.
Ml
MIL
115
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207 0000 005F R
208 0002 0146 R
209 0004 0167 R
210 0006 018F R
211 0008 0785 R
212 OOOA 01A6 R
213 OOOC 020F R
214 OOOE 02AD R
215 0010 02FF R
216 0012 035C R
217 0014 038E R
218 0016 01C8 R
219 0018 0450 R
220 001 A 043F R
221 001 C 06FE R
222 00 1E 0 1EE R
223 0020 0130 R
224 0022 0130 R
225 0024 0130 R
226 0026 03BB R
227 = 0028
228