AND THENM zt A. F E 0 0 I t t THE SYSTEM HAS REMEMBERED THE ADDRESS YOU WERE USING (WHICH DOESN'T HAVE TO BE FE00) TO INSPECT MEMORY NOW ENTER THE ADDRESS 0030 AND TERMINATE WITH ANY COMMAND KEY \ CO LU m j _ ,_ t ( j 0- t X t A. 0 0 3 0 X X CO K 1 X 1 > t t X t > 0030 IS AN ADDRESS IN THE ALTERABLE SECTION OF THE MEMORY. PRESSING DIGIT KEYS NOW WILL CAUSE THE INFORMATION IN0030TO CHANGE (WHAT HAPPENS AT FE00?? TRY IT! YOU CANNOT WRITE INTO THE o DC Q Z 1 1 0 CD 1 MONITOR PROM, (i.e. THE PROGRAMMABLE READ ONLY MEMORY). PRESS 0, 1. > CO ID 1 1 1 1 1 UJ CO 1 1 1 1 1 1 A. 0030 01 x^ CO ^t CO 1 1 1 1 1 CJ CO 1 1 CO \- PRESS 2.3 0030 LU A.
23 D _ J O CO CO AS BEFORE INFORMATION ISSHIFTED IN UNTIL TERMINATED BY ANY COMMAND KEY. BUT, UNLI KE THE ADDRESS FETCHING PHASE, THE COMMAND *^ co «?r CJ CN u UJ 0 CJ ^ UJ CJ LU 00 CJ 00 x CO UJ LU Q UJ LL UJ in UJ CO LU KEY Wl LL BE EXECUTED. USEFUL TERMINATORS ARE THE M, t & I KEYS. PRESS t. N CN 1 1 1 1 CO CO 1 a CO 1 CO CO A. 0 0 3 1 X X O DC UJ N X. N CN 1 1 1 1 1 1 O) CO CO UJ 0 UJ CJ LU LJJ UJ LU CN HI CO UJ 0 CN CO CN LU CJ 1 CO 00 00 CN CO CO CD Q CD LL s 8 CD CJ z CO a. % 0 cc CJ PR ESS 4,5 Q ZERO ING ECROS PAGE .VES NCH& BRA A. 0 0 3 1 45 cc o I/Ml UJ CN CN 1 UJ § 1 t 1 1 CN LO s 8 CO UJ CD CN § PRESS 4- flULA ESS IN CJ A.
0 0 3 0 23 DC UJ Q Q Q O CO CO UJ DC LU Q Q Q O LL CN & t AGAIN o O MJ Z CJ ruz CJ MJ z 1 MJ NJ Z CJ z MJ Z MJ Z CJ MJ Z CJ MJ Z CJ MJ Z O I CJ 0 0 3 1 45 THAN FLAGS )W!TH ESTBIT CO STER STER REGI ISTER ISTER UJ 1- LL I ENT 1 ION 1 BRAh YOU CAN GO UP AND DOWN INSPECTING & MODIFYING THE MEMORY CONTENTS IF THERE IS NO ALTERABLE MEMORY (E.G. A PROM) AT A PARTICULAR ADDRESS, THE INFORMATION WILL NOT CHANGE. TO CLOSE THIS SECTION WE'LL MAKE THE MONITOR DO A LITTLE TRICK. M,0,0,0,E, k cc UJ I I—I LLJ Z H —1 ^ . X UJ DC CL REGI 1 > LL 5 E FLA CO 0 TICS DECR LU NCRE 111 SHIF h- LEFT RIGH 1- DPER, LL + LU DC Q .
X Q X LU cc O LU LLJ DC DC >- LU DC O _J LU UJ LU LL I uz CO cc UJ DO DC LU > CJ __ iZ O co O O u O CJ a. Q CO DC UJ > CJ RITH EFT INAR DC z OGIC LSR IGHT OTAT OTAT CLE 1 DC DO O ( k = ANY COMMAND KEY) 5 UJ cc - I _J CO CO 1 O CO CO cc DC DC CJ IAI3NI O X Q _ l UJ OC ION X UJ DC LL 2. t CO X Q . CJ Q_ CJ Q_ Q _ j X CO CO > 3NI/M ASL DEC INC ROL DC O DC