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

LOC OBJ LINE SOURCE
F04S
F045 FeFO
F047 CFFI
F049 Fon
F04B JAF2
F040 A9F7
F04F 30F,
FOS1 9CF2
F05] 41F3
FOSS 70n
Fost C3f3
F059 F6F3
FOSS 54F2:
rOSO 38F4
FOSF 27F4
F06! 22F7
F063 7AF2
0020
FObS
FObS FB
F066 Fe
F061 06
F06,8 IE
F069 52
FObA 51
F068 53
F06C 56
F060 57
F06E 50
F06F 8AC4
F071 32E4
F073 DIED
F075 68FO
F071 302000
F07A n04
F07e 58
F07D E94701
f080 884000
F083 8E08
F085 B80066
f088 863ElOOO
F08e 81E73000
F090 83FF30
F093 7503
F095 880080
F098 8Eeo
F09A 58
F098 8A2:6490D
F09F 2EfFA445FO
FOA4
3232 (AH) 15 CURREI'ff VIDEO STATE
32:33 RETURNS THE CURRENT VIDEO STATE
3234 (All ::: HOOE CURRWTLY SET I SEe AH=O FOR EXPLANATION)
3235 (AH) :: NU11BER Of CHARACTER COLUMNS ON SCREEN
3236 (BH) :: CURRENT ACTIVE DISPLAY PAGE
3237
3238 CS,SS,DS,ES,8X,CX,DX PRESERVED DURING CALL
3239 ALL OTHERS DESTROYED
~2:40 ; ------------------------­- -------------­---­
32:41 ASSUME CS :CODE IDS:DATA ,ES :VIOEO_RAM
32:42:
3243 HI LABEL WORD I TABLE OF ROUTINES WITHIN VIDEO I/O
32:44 OW OFFSET SET_MOOE
32:45 ow OFFSET SET_CTYPE
3246 ow OFf'SET SET_CPOS
32:47 ow OfFSET READJUPSOR
32:48 ow OFFSET READ_LPEH
32:49 ow OffSET ACT_crsp_PAGE
3250 0"
OFFSET SCROLL_UP
3251 ow OFFSET SCROLL_DOWN
32:52: ow OFFSET READ_AC_CURREtIT
3253 0" OFFSET WRITCAC_CURRENT
3254 0"
OFFSt:T WRlTE_C_CURRENT
3255 0" OFFSET SET_COLOR
3256
0"
OFFSET I-'RITE_OOT
3257
0" OFFSET READ_DOT
3258
OFFSET WRITE_TTY
0"
3259 0" OFFSET VIDEO_STATE
3260 HIL EOU $-Ml
3261
3262 rROC tl::AR
3263 STI ; INTERP-UPTS BACK ON
3264 CLO SET DIRECTION FORWARD
3265 PUSH ES
3266 PUSH DS ; SAVE SEGMENT REGISTERS
3267 PUSH ox
3268 PUSH CX
3269 PUSH ex
3270 PUSH 51
3271 PUSH 01
3272 PUSH AX ; SAVE AX VALUE
3273 MOV AL,AH ; GET INTO LOW BYTE
3274 XOR AH IAH I ZERO TO HIGH BYTE
3215 SAL AX,1 *2 FOR TABLE LOOKUP
3276 MOV SI,AX PUT INTO SI FOR BRANCH
3277 CMP AX , 111L TEST FOR WITHIN RANGE
3278 JB 11£ 1 BRANCH AROUND BRANCH
3279 POP AX THROW AWAY THE PARAMETER
3280 JMP VIDEO_RETURN ; DO NOTHING IF NOT IN RANGE
3281 MOV AX,OATA
3282 HOV OS,AX
3283 MOV AX , OB800H SEGMENT FOR COLOR CARD
3284 MOV 01 I EqUIP_FLAG GET EQUIPMENT SETTING
3285 AHD DI , 30H ISOLATE CRT SWITCHES
3286 CMP OI,30H IS SETTING FOR Bioi CARD?
3287 JNE M3
3288 MOV AX,OBOOOH ; SEGMnlT FOR Bioi CARD
3289 MOV ES,AX I SET UP TO POINT AT VIDEO RAI1 AREAS
3290 POP AX ) RECOVER VALUE
3291 MOV AH,CRT_HOOE I GET CURRENt MODE INTO AH
3292 JMP WORD PTR CS:[SI.. OFFSET MIl
3293 VIDEO_IO ENDP
3294 ; -­------------­--------------------------­
3295 ; SET_MODE
3296 THIS ROUTINE INITIALIZES THE ATtACHMENT TO
3297 THE SELECTED MODE. THE SCREEN IS BLANKEO.
3296 ; INPUT
3299 {ALI ::: MODE SELECTED (RANGE 0-9)
3300 i OUTPUT
3301 NONE
3302 ; -------­ -----­ ----------------------------­
3303
3304 i------ TABLES FOR USE IN SEn!NG OF MODE
3305
3306 LABEL 'BYTE
3307 1------ !NIT_TABLE
A-45