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Technology Stocks : Microsoft - The Evil empire
MSFT 398.09+1.1%11:23 AM EST
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To: Columbo who wrote (156)10/29/1997 11:44:00 AM
From: Typhoon  Read Replies (1) of 1600
 
Hi Columbo. See you're having fun as well. Here's one of my favorite code fragments.
The best part is that it runs great without an operating system.
We could have a fun game of "guess the processor".
Very few people would be able to guess this one.
This fragment contains an unnecessary instruction, but it still works.


OVER: MVI A,0
STAW ECNTCUR ;CLEAR ERROR COUNT HOLDING REGISTER

LDAW PNTCNT
MOV C,A ;POINT COUNTER

MXP: LDAX D+ ;GET SCALED DATA POINT
MOV B,A ;COPY TO B
LDAX H ;GET MAX TABLE POINT
DCR C
NOP
SUBNB A,B ;A <- A-B MAX-DATA
JMP MER ;SKIP THIS INSTR IF OK
JMP GHI
MER: LDAX H ;GET MAX POINT AGAIN
SUBNB B,A ;B <- B-A DATA-MAX
NOP
MOV A,B ;RESULT IN B, PUT BACK IN A
;UPDATE ERROR SUM:
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