Jump Group

One of the most common things that must be done in programs is the repetitive execution of certain Instructions. Think of the number of times vou use a FOR-NEXT loop in a Basic program In an assembly language program you muat build your FOR-NEXT loops from scratch. The NEXT part of the loop is accomplished by a JUMP Statement. JUMP statements transfer control of the program from the next instruction to another location In memory by altering the contents, of the Program Counter (PC). There are...

Rek Mverticai Scale Factor M

POP 1-1 TO 47 Y-I SET(0,Y)tSET(1,1) NEXT I FOR 1-1 T0127 X 1 SET(X,4 7)sNBXT I FOR 1-1 TO 30 X 4 A (I) Y 4 -47*A(50+I) M IFY> 47 THEN Y-47 IF Y< 0 THEN Y 0 SET (X -Y) Y-4 7-4 7 A(100*I) MiIF Y> 47 THEN Y-47 IF Y< 0 THEN Y-0 SET (X,Y) Y-47-47 A(1504l) M IF Y> 47 THEN Y-47 IF Y< 0 THEN Y 0 SET (X,Y) PRINT AT 0, 200' PRINT AT 4 4 8 1 00 s PRINT AT960,0j P P. INTAT 1000,M20 j PRINTAT9B0 , 10 11PRINTAT1 020 , H 30 i PRINTAT280,LINPBLAD RESONANCESJ

Dish Based Business

I If OKI DATA SKR VIC S I' O BOX 24112 ANAHEIM, CA. V2JHM THE-DATA IM'RBER Inlilinilt utvy TRS80 PKCM.K AM I APE Yes, even those in machine language heed vour cassette into the Data Dubber and get out exact replicas of the TRS-AO CSA VE data pulses. Obtain perfect CLOADs even from tapes with noise. hum. distortion or minor dropouts and without constantly adjusting the volume. Connect a second cassette to the Data Dubber and make perfect reproductions, just as if the data came from the TRSS0....

Random Access

Have you looked yet I really Is 48 pages this time The comments concerning our January White Sale In the Jan-Feb Issue were Interesting, to say the least. Those eight white pages at the end were an accomplished act before we knew about It, and there was no time to redo the run. The insert was the only graceful way out. And wouldn't you know It Some readers suggested doing that all the time, for notes We welcome three new staff members to our pages this Issue PHIL PILGRIM is doing the SYSTEM...

Level Ii Poke Graphics

Here It a bendy refereece tlildi you can use far the d vplopmftnr ctf yrohic duplny . Too ey weet to aiefce e copy el tfcia page and piece It befweea two ibeeti of piestfc, to tfcet yee tea prep It ep eoif to year coaipator for bandy refereece. WWW yom aro ot h, mote a Hit of tbe error co ti or tbe ASCII codai , and pot H becktobeck wttb tWi pefo before yoe onceto ffceei b plastic. TWt vey yoer refereece cerd 11 bo Bwre wiefull LEVEL II GRAPHICS USING POKE rUNCTIONS Tho PRINT AT location on...