The Computer
5-8 Manual # 42-02-1P21
The Computer Internal Memory Chart (Table 5.3) indicates the meaning of these data digits at
different addresses.
For example, the internal memory display might look like this:
The address on the display is 29; the data at that address is
11110000. To figure out what this means, simply match up the data digits with row 29 of the
Computer Internal Memory Chart:
Display Data: 1 1 1 1 0 0 0 0
Row 29: DNDO LD DPD DDP UPDO LU UPD UDP
Notice that the DNDO, LD, DPD and DDP signals are ON and the UPDO, LU, UPD and UDP
signals are OFF.
Table 5.3 Computer Internal Memory Chart
FLAGS AND VARIABLES
ADD 8 765432 1
10: DOLMR PHER DZR DOLR DBCR DOBR GEUR GEDR
11: TFAR DCR UCR CCR NDSR FDCR DHOR DOIR
12: DCFR DCPR DOFR LOTR GHTR HCTR CCTR SDTR
13: DOCR SER DCLCR CSBR DCCR NUDGR NDGBPSR DSHTR
20: DOLM PHE DZ DOL DBC DOB GEU GED
21: TFA DC UC CC NDS FDC DHO DOI
22: DCF DCP DOF LOT GHT HCT CCT SDT
23: DOC SE DCLC CSB DCC NUDG NDGBPS DSHT
24: VCI FRA FCS FRS DNS UPS STD/R0 STU/R1
25: SCE FCCC FCHLD HLI VCA EXMLT FWI PIC
26: LFP UFP NYDS CCH DIN DPR GTDE GTUE
27: HD FCOFF DHLD IND IN DLKS MLTP MLTDO
28: LLW DLK DDF SUD ISR INCF REAR LLI
29: DNDO LD DPD DDP UPDO LU UPD UDP
2A: DMD DCB UCB CCB DMU DCA UCA CCA
2B: TOS MLT VLT SST H HSEL DSH RUN
2C: DZP STC SAF HCR HCDX CCD ISV ISRT
2D: TEMPB UFQ DZORDZ FCSM FRM FRSS FRAS FRC
2E: SD SDA DSD BFD SU SUA USD TFD
2F: FRBYP FRON
HYD1_TRC0
ECC CD ECRN EPR PFG
30: R4 R2 R3 FREE DEADZ DHLDI PH1 NDGF
31: CTLDOT CTLF CTL ALV EPSTP AUTO EPRUN EPI
33: API SAB TEST DHENDR DHEND CTST HOSPH2 HOSP
38: HML SLV CCC CNFG DLI DLW LWCE HLW
42: COMMUNICATION TIME-OUT ERROR COUNT
43: COMMUNICATION CHECKSUM ERROR COUNT
D NORMAL OPERATI
PI 8 29:1111OOOO
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