IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)

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LOC OBJ LINE SOURCE F6E5 DIE 1 4586 5Hl eX.l ; SHIFT ONLY MASK NOW. MOVING TO NEXT BASE F6E7 73fC 4587 JNe 522 ; USE MASK BIT COMING OUT TO TERMINATE F6E9 8BC2 4588 MOV AX.OX ; RESULT TO PARM REGISTER F6EB 5B 4589 POP BX F6EC 59 4590 POP ex j RECOVER REGISTERS F6ED SA 4591 POP ox F6EE C3 4592 RET I ALL DONE 4593 521 ENDP 4594 l------------ - - - ------- - - ------------------- 4595 J HED_READ_BYTE 4596 f THIS ROUTINE WILL TAKE 2 BYTES FROM rtfE REGEN BUFFER. 4597 I COMPARE AGAINST THE CURRENT fOREGROUND COLOR. AND PLACE 4598 ; THE CQRRESPQtmING ONIOFF BIT PATTERN INTO THE CURRENT 4599 POSITION IN THE SAVE AREA 4600 ENTRY - 4601 SI,OS :: POINTER TO REGEN AREA OF INTEREST 4602 ,BX = EXPANDED FOREGROUND COLOR 4603 BP = POINTER TO SAVE AREA 4604 , EXIT - 4605 ; SP IS INCPEMENT AFTER SAVE 4606 1------------------------------------------- F6EF 4607 S23 PRoe NEAR F6EF 8A24 4608 HOV AH. [SI 1 ; GET FIRST BYTE F6Fl 844401 4609 MOV AL.[SI+l1 ; GET SECOND BYTE F6F4 6900CO 461D HOV eX.DCODDH ; 2: BIT MASK TO TEST THE ENTRIES F6F7 B200 4611 HOV DL.O ; RESULT REGISTER F6F9 4612 S24: F6F9 85Cl 4613 TEST AX.CX ; IS THIS SECTION BACKGROUHD? F6FB F8 4614 eLe ; CLEAR CARRY IN HOPES THAT IT IS F6FC 7401 4615 JZ 525 ; IF ZERO. IT IS BACKGROUND F6FE '9 4616 5Te , WASN'T, so SET CARRY F6FF 0002 4617 S25: ReL DL,! ; MOVE THAT BIT INTO THE RESULT F701 DlE9 4618 SHR CXol F703 DJE9 4619 5HR CX,! , MOVE THE MASK TO THE RIGHT BY 2 BITS F705 73F2 462. JNe 52. ; DO IT AGAm IF MASK DIDN'T FALL OUT F707 885600 4621 MOV [BPl,DL ; STORE RESULT IN SAVE AREA nOA 45 4622 It~C BP ; ADJUST POINTER F70B C3 4623 RET ; ALL DONE 4624 S23 ENOP 4625 ; - - ----- - - ------------------------------ - 4626 ; V4_POSITION 4627 ; THIS ROUTINE TAKES THE CURSOR POSITION CONTAINED IN 4626 THE MEMORY LOCATION. AND COtNERTS IT INTO AN OFFSET 4629 I INTO THE REGEN BUFFER, ASSUMING ONE BYTE/CHAR. 4630 FOR MEDIUM RESOLUTION GRAPHICS, THE NUMBER MUST 4631 BE DOUBLED. 4632 ENTRY -- NO REGISTERS,MEMORY LOCATION CURSOR_POSH IS USED 4633 EXIT- 4634 AX CONTAINS OFFSET INTO REGEN BUFFER 4635 ; --------------------------------- ------- F70C 4636 52. PROC NEAR FlOC A15000 4637 HOV AX.CURSOR_POSN ; GET CURRENT CURSOR F70F 4638 GRAPH_POSH LABEL NEAR F70F 53 4639 PU5H BX I SAVE REGISTER F710 8808 4640 HOV BX,AX ; SAVE A COpy OF CURRENT CURSOR F712 8AC4 4641 HOV AL.AH I GET ROWS TO AL F714 F6264AOO 4642 HUl BYTE PTR CRT_COLS ; NULTIPLY BY BYTES/COLUMN F7l8 DIED 4643 5HL AX'! ; MULTIPLY * 4 SINCE 4 ROWS/BYTE F7lA DIED 4644 SHl AXd F71C 2AFF 4645 SUB BH,BH ; ISOLATE COLUMN VALUE F7lE 03C3 4646 ADO AX,BX ; DETERMINE OFFsET F720 56 4647 POP BX ; RECOVER POINTER F721 C3 464& RET ; ALL DONE 4649 526 ENDP 4650 ;------------------------------------------- 4651 4652 , THIS INTERFACE PROVIDES A TElETYPE LIKE INTERFACE TO THE 4653 VIDEO CARD. THE INPUT CHARACTER IS WRITTEN TO THE CURRENT 4654 ClJ;!SOR POSITION. AND THE CURSOR IS MOVED TO THE NEXT POSITION. 4655 IF THE CURSOR LEAVES THE LAST COLUMN OF THE FIELD, THE COLUMN 4656 IS SET TO ZERO. AND THE ROW VALUE IS INCREMENTED. IF THE ROW 4657 ROW VALUE LEAVES THE FIELD. THE CURSOR IS PLACED ON THE LAST ROW. 4658 FIRST COLUMN, AND THE ENTIRE SCREEN IS SCROLLED UP ONE LIUE. 4659 WHEN THE SCREEN IS SCROLLED UP. THE ATTRIBUTE FOR FILLING THE 4660 NEWLY BLANKED LINE IS READ FROM THE CURSOR POSITION ON THE PREVIOUS 4661 LINE BEFORE THE SCROLL. lH CHARACTER MODE. IN GRAPHICS MODE, A-63
lOC OBJ LINE SOLIRCE 4662 THE 0 COLOR IS USED. 4663 ~ ENTRY - 4664 (AH) = CURRENT CRT MODE 4665 (AL) = CHARACTER TO BE WRInEN 4666 NOTE THAT BACK SPACE, CAR RET, BEll AND LINE FEED ARE HANDLED 4667 AS COI1MANOS RATHER THAN AS DISPUYABLE GRAPHICS 4668 (BLI = FOReGROUND COLOR FOR CHAR WRITE IF CURRENTLY IN A GRAPHICS f10DE 4669 EXIT - 4670 All REGISTERS SAVED ~671 F722 F722 50 F723 50 F724 8403 F726 COlO F728 58 F7Z9 3C08 f'728 7459 F72D 3COD F72F 745£ F731 3eOA F733 745E F735 lC07 F737 7461 F739 6A3E6200 F73D B40A F73F 890100 F742 COlO F7" FEe2 F746 3Al64AOO F74A 753(, F74C B200 F74E 80F£18 F751 7520 F753 F753 B402 F755 8700 F757 COlO F759 A04900 F75C 3C04 F75E 12.06 F760 3e07 F762 B700 F764 7506 F766 F766 6408 F768 COlO f76A SAFe F76C F76C 880106 F76F 690000 F772 B618 F774 8A164ADO F778 FECA F77A F77A COlO F77C F77C 58 46n: ASSUME CS:CQDE.DS:DATA 4673 WRITE_TTY PROC NEAR 4674 PUSH AX • SAVE REGISTERS 4675 PUSH Ax ; SAVE CHAR TO WRITE 4676 MOV AH.3 4677 INT 10H ; READ THE CURRENT CURSOR POSITION 4678 POP AX ; RECOVER CHAR 4679 4680 ;------ DX NOW HAS THE CURRENT CURSOR pOSITION 4681 4682 CM' AL,e ; IS IT A BACKSPACE 4683 JE U8 j BACK_SPACE 4684 CM" Al.ODH j IS IT CARRIAGE RE11.mN 4685 JE U9 ; CAR_RET 4686 CMP ALtOAH ; IS IT A LINE FEED 4687 JE UIO ; LINEJEED 468a Ct1P AL,07H ; IS IT A BELL 4689 JE Ull ; BELL 4690 4691 ;------ WRITE THE CHAR TO THE SCREEN 4692 4693 MOV BH.ACTIVE_PAGE; GH THE CURRENT ACTIVE PAGE 4694 MOV AH.I0 ; I..'RIT£ CHAR ONLY 4695 t1Qy CX.l ; ONLY ONE CHAR 4696 tNT 10H i WR ITE THE CHAR 4697 4698 ;------ POSITION THE CURSOR FOR NEXT CHAR 4699 4700 IHC OL 4701 eMP OL,BYTE PTR CRT_COLS ; TEST FOR COLUMN OVERflOW 4702 JNl U7 ; SET_CURSOR 4703 MOV DL,D ; COLUMN FOR CURSOR 4704 CM' DH,24 4705 JHZ U6 4706 4707 ; ------ SCROLL REQUIRED 4708 VI: 4709 4710 HOV AH.2 4711 MOV BH,O 4712 INT 10" ; SET TH E CURSOR 4713 4714 1------ DfTERMINE VALUE TO FILL WITH DURING S'ROLL 4715 4716 l10V Al.eRT_MOOE GET THE CURRENT HOOE 4717 CM' Al.4 4718 JC ua READ-CURSOR 4719 CM" Al.7 4720 MOV 8H,0 ; FILL a.llTH BACKGROUND 4721 JNE U3 ; SCROLL-UP 4722 4723 U2: ; READ-CURSOR 4724 HOV AH,e 4725 INT IOH ; READ CHAR/AHR AT CURRENT CURSOR 4726 MOV BH.AH STORE IN BH 472.7 4128 U3: I SCROLL-UP 4729 I10V AX.601H SCROLL ONE LINE 4730 HOV CX,O ; UPPER LEFT CORNER 4731 MOV OH,24 ; LOWER RIGHT ROW 4732 MOV OL,BYTE PTR CRT_COLS ; LOlolfR RIGHT COLutIN 4733 DEC OL 4734 lJ4, , VIDEO-CALL-RETURN 4735 INT 10H ; SCROLL UP THE SCREEN 4736 us: ; TTY-R!;TURN 4737 POP AX ; JilESTORE THE CHARACTER A-64
Page 1:
April 2011 IMPORTANT 1. The motherb
Page 5 and 6:
FEDERAL COMMUNICATIONS COMMISSION R
Page 8 and 9:
CONTENTS SECTION 1. HARDWARE OVERV
Page 10 and 11:
Programming Considerations ........
Page 12 and 13:
INS 8250 Functional Pin Description
Page 14 and 15:
FIGURE LISTING 1. System Block Dia
Page 16 and 17:
SECTION I. HARDWARE OVERVIEW The
Page 18 and 19:
The 16KB Memory Expansion Kits allo
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SECTION 2. HARDWARE ~ Contents: Sys
Page 22 and 23:
SYSTEM BOARD The System Board fits
Page 24 and 25:
The memory is dynamic 16K x 1 chips
Page 26 and 27:
System Board Data Flow Figure 2. S
Page 28 and 29:
1/0 Channel Diagram REAR PANEl SI
Page 30 and 31:
I/O CHRDY I I/O Channel Ready: This
Page 32 and 33:
System Board Component Diagram REA
Page 34 and 35:
Keyboard Interface B lock Diagram
Page 36 and 37:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Page 38 and 39:
Cassette User Interface The cassett
Page 40 and 41:
Cassette Interface Connector Specif
Page 42 and 43:
I/O Address Map HEX RANGE 9 8 7 6
Page 44 and 45:
System Memory Map X'OOOOO' 16 TO 6
Page 46 and 47:
System Memory Map Cont. START ADDR
Page 48 and 49:
5-1/4" Diskette Drives Switch Setti
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32/64KB Memory Expansion Option Sw
Page 52 and 53:
Power Supply The system DC power su
Page 54 and 55:
N I ~ VI ) § I • \. ~ o el so.
Page 56 and 57:
IBM Monochrome Display and Parallel
Page 58 and 59:
System Channel Interface Lines Used
Page 60 and 61:
Programming Considerations Programm
Page 62 and 63:
• CRT Status Port (I/O Address '3
Page 64 and 65:
Color/Graphics Monitor Adapter The
Page 66 and 67:
CPU .. r-- ) ) ) DISPLAY ADDRESS BU
Page 68 and 69:
Modes of Operation There are two ba
Page 70 and 71:
IBM Monochrome Display Adapter V s.
Page 72 and 73:
Color selection is determined by th
Page 74 and 75:
1"'"""""\ Table 5. I R G B Summary
Page 76 and 77:
Programming the Mode Control and St
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Bit 5 When on, this bit will change
Page 80 and 81:
I/O Address and Bit Map Read/Write
Page 82 and 83:
Color/Graphics Monitor Adapter Auxi
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Parallel Printer Adapter The Printe
Page 86 and 87:
Programming Considerations The Prin
Page 88 and 89:
Parallel Printer Adapter Interface
Page 90 and 91:
Table 7. Printer Specifications (1
Page 92 and 93:
Table 9. Functions and Conditions o
Page 94 and 95:
Table 10. Connector Pin Assignment
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(4) Data transfer sequence Fig. 17
Page 98 and 99:
ASCII Control Codes Control Codes V
Page 100 and 101:
(8) DC 2 (Device Control 2) The DC
Page 102 and 103:
(b) 3) ESC 2 (Escape 2) Receipt of
Page 104 and 105:
ehaves like the LF code. Therefore,
Page 106 and 107:
[DATA] IESCGI ABCDEFGHI [PRINT] ABC
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5 1/4-Inch Diskette Drive Adapter T
Page 110 and 111:
~ Functional Description From a pro
Page 112 and 113:
The FOe is capable of performing 15
Page 114 and 115:
Table 13. Symbol Descriptions (cont
Page 116 and 117:
Command Summary (continued) DATA B
Page 118 and 119:
Command Summary (continued) DATA B
Page 120 and 121:
Table 15. Status Register I BIT NO.
Page 122 and 123:
Table 17. Status Register 3 BIT NO.
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~ ~ +AO-9 +AEN -lOW -lOR -DACK2 +T
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Adapter Inputs -Index -Write Protec
Page 128 and 129:
5-1/4" Diskette Drive Adapter Exter
Page 130 and 131:
(3) The write-protect sensor disabl
Page 132 and 133:
Memory Expansion Options Two Memory
Page 134 and 135:
Switch - Configurable Start Address
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Game Control Adapter The Game Co
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I/O Channel Description A9-AO: D7-D
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) ) ) 15 PIN MALE '0' SHELL c....t
Page 142 and 143:
Asynchronous Communications Adapter
Page 144 and 145:
Modes of Operation The different mo
Page 146 and 147:
I TRANSMIT 'IACUIT I +5V ~ 4S-"l Tx
Page 148 and 149:
INS8250 Functional Pin Description
Page 150 and 151:
Data Set Ready (DSR), Pin 37: When
Page 152 and 153:
Input/Output Signals Data (D7-DO) B
Page 154 and 155:
Bit 3: This bit is the Parity Enabl
Page 156 and 157:
Table 23. BAUD RATE AT 1.843 Mhz De
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Interrupt Identification Register T
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Interrupt Enable Register This 8-bi
Page 162 and 163:
In the diagnostic mode, the receive
Page 164 and 165:
Transmitter Holding Register The T
Page 166 and 167:
Page 168 and 169:
SECTION 3. ROM and SYSTEM r", USAGE
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MOV AH,l ;function is to set time o
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Vectors With Special Meanings Inter
Page 174 and 175:
BIOS Memory Map STARTING ADDRESS H
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The timer is set mode 3 which means
Page 178 and 179:
Keyboard Encoding and Usage Encodin
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Keys 71-83 have meaning only in bas
Page 182 and 183:
ALT - Temporarily shifts keys 2-13,
Page 184 and 185:
Keyboard Usage This section is inte
Page 186 and 187:
Table 28. BASIC Screen Editor Speci
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Low Memory Maps (O-'0600'x) Table 3
Page 190 and 191:
BASIC Workspace Variables If you do
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APPENDICES Contents: Appendix A: RO
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lOC OBJ LINE SOURCE STITlE( ROM BIO
Page 197 and 198:
LOC OBJ LINE SOURCE 0068 ?! 155 De
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LOC OBJ LINE SOURCE E09E BBf5 EOAO
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lOC OBJ LINE SOURCE £179 E2FD 462
Page 203 and 204:
LOC OBJ LINE SOURCE E278 7408 612 J
Page 205 and 206: lOC OBJ LINE SOURCE 755 ; ---------
Page 207 and 208: LOC OSJ LINE SOU RCE E42B 7440 900
Page 209 and 210: lOC OBJ LINE SOURCE ESIE 884000 E52
Page 211 and 212: LaC OBJ LINE SOURCE E613 803E120001
Page 213 and 214: LaC OSJ LINE SOURCE E6EC eSOAOE E6E
Page 215 and 216: LaC OBJ LINE SOURCE E7SF 1505 .402:
Page 217 and 218: LaC OBJ LINE SOURCE 1659 ASSUME CS:
Page 219 and 220: LOC OBJ LINE SOURCE E994 8E08 1798
Page 221 and 222: LOC 08J LINE SOURCE £"91 474849 EA
Page 223 and 224: LaC OBJ LINE SOURCE E890 E99700 E89
Page 225 and 226: LOC 08J LINE SOURCE 2255 ;-- INT 13
Page 227 and 228: LOC OS! LINE SOURCE 2407 ;------ DI
Page 229 and 230: lOC OBJ LINE SOURCE (Eol 7438 fE03
Page 231 and 232: LOC OBJ LINE SOURCE Ef'tD £67200 2
Page 233 and 234: LOC OBJ LINE SOURCE 2870 I ~- -----
Page 235 and 236: LOC (lBJ LINE SOURCE 3007 j --- INT
Page 237 and 238: laC OBJ LINE SOURCE 3157 (AH}=6 SCR
Page 239 and 240: lOC OBJ LINE SOURt.:E FOA43828ZDOAI
Page 241 and 242: lOC OBJ LINE SOURCE FtC7 3458 VIDEO
Page 243 and 244: LOC OBJ LINE SOURCE F260 750E f2:62
Page 245 and 246: LOC OBJ LINE SOURCE F32B 06 3760 PU
Page 247 and 248: LOC OBJ LINE SOURCE F3Cl 3910 NEAR
Page 249 and 250: laC OBJ LINE SOURCE 1'460 80HfE F46
Page 251 and 252: LOC OBJ LINE SOURCE F4FF BSFB 4213
Page 253 and 254: LOC OBJ LINE SOURCE 4359 j------ IM
Page 255: LOC OBJ LINE SOURCE F689 57 4511 PU
Page 259 and 260: LOC OBJ LINE SOURCE F7Cl 8AC4 F7e]
Page 261 and 262: LaC OBJ LINE SOURCE F840 4967 EQUIP
Page 263 and 264: LOC OBJ LINE SOURCE F8DA E304 5116
Page 265 and 266: LOC OBJ LINE SOURCE F97E EBF9 5268
Page 267 and 268: LOC OBJ LINE SOURCE H20 C3 5415 RET
Page 269 and 270: LOC OBJ LINE SOURCE fC46 0030300000
Page 271 and 272: LOC OBJ LINE SOURCE FEBS 833E6E0018
Page 273 and 274: lOC OBJ LINE SOURCE 5866 ;.*.-•
Page 275 and 276: A-82 NOTES
Page 277 and 278: 8088 REGISTER MODEL AX: AH Al ACCUM
Page 279 and 280: MEMORY SEGMENTATION MODEL LOGICAL
Page 281 and 282: XCHG =Exchange RegisterImemory with
Page 283 and 284: SBB = Subtract with borrow Reg./mem
Page 285 and 286: AND = And Reg./memory and register
Page 287 and 288: Indirect within segment 11111111 mo
Page 289 and 290: 8088 CONDITIONAL TRANSFER OPERATION
Page 291 and 292: BOBBINSTRUCTION SET MATRIX LO HI 0
Page 293 and 294: INSTRUCTION SET INDEX Mnemonic Pag
Page 295 and 296: VALUE AS CHARACTERS AS TEXT ATTRIBU
Page 305 and 306: Character Set (OO-7F) Quick Referen
Page 307 and 308:
C-14 NOTES
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SYSTEM BOARD (PROCESSOR AND SUPPORT
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SYSTEM BOARD (DEVICE DECODES) I~ i
Page 313 and 314:
SYSTEM BOARD (ROS AND BUS DRIVER) ~
Page 315 and 316:
Ṉ-0 SYSTEM BOARD (DYNAMIC MEMORY
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SYSTEM BOARD (KEYBOARD/SENSE/CONTRO
Page 319 and 320:
\:j I " m < -tv CI:I Q » :11:1 Q P
Page 321 and 322:
I- z ..... 0 t:::I 0 ... ;:; ~ r
Page 323 and 324:
tl I-0'1 ," r-" "~ (S"T" 'RESET I E
Page 325 and 326:
~ ~ ~ ~ ~~ IBM MONOCHROME DISPLAY A
Page 327 and 328:
tj III ~ N 14L.517') ~ 0 __________
Page 329 and 330:
~ N s: N CI CO J ~ CI 2 A Y 18 n DA
Page 331 and 332:
IBM MONOCHROME OISPLAY DANGER HAZAR
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COLOR/GRAPHICS MONITOR ADAPTER ~
Page 335 and 336:
1'. -- COLOR/GRAPHICS MONITOR ADAPT
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1 COLOR/GRAPHICS MONITOR ADAPTER :;
Page 341 and 342:
PARALLEL PRINTER ADAPTER D-34
Page 343 and 344:
t:l +AEN AND U'I GATE , ., + ENABL
Page 345 and 346:
t:! W CI CHARGE PUMP 00 AOI en U ~I
Page 347 and 348:
5%" DISKETTE DRIVE .., CI -N ... ';
Page 349 and 350:
t:j ~ N o W z N ;:1'1: ~ aZKO: ." R
Page 351 and 352:
32KB MEMORY EXPANSION d-w- I NNO) 3
Page 353 and 354:
64 ~~ MEMORY EXPANSION ~~ D-46
Page 355 and 356:
BO~ t::l azq +';V[)( +'>vOC 'f c+o;
Page 357 and 358:
D-50 NOTES
Page 359 and 360:
IBM Monochrome Display Size: Length
Page 361 and 362:
12. Binary: (1) Pertaining to a sel
Page 363 and 364:
40. Hertz (Hz.): A unit offrequency
Page 365 and 366:
70. OR: A logic operator having the
Page 367 and 368:
G-8 NOTES
Page 369 and 370:
Other Related Publications 7. NATIO
Page 371 and 372:
Page 373 and 374:
Character Codes 3-11 Generator 2-
Page 375 and 376:
DIN (Connectors) 2-5 DIP (Dual In-L
Page 377 and 378:
Game Control Adapter (continued) C
Page 379 and 380:
I/O (Input/Output) Address Map 2-33
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Microsecond 2-3 Mnemonic B-18 Mod
Page 383 and 384:
Parameters, 6845 Initialization 2-4
Page 385 and 386:
Read/Write Memory (continued) Grap
Page 387 and 388:
s Scan Codes 2-17 Screen 2-43 Sche
Page 389 and 390:
u Unit Specifications Appendix E
Page 391 and 392:
1-22 NOTES
Page 393:
III"I UNITED NO POSTAGE NECESSARY
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