XPost: comp.sys.ibm.pc.classic, comp.sys.ti, comp.sys.sinclair   
   From: tlake@twcny.rr.com   
      
   "James"  wrote in message   
   news:12mrh4071bov8f1@corp.supernews.com...   
   > INP and OUT were unique to the Z80 in Microsoft Basic.  As I remember the   
   > 8080 was memory mapped and did not have these port calls.  I used the Z80   
   > in those days and these commands were an integral part of many programs I   
   > wrote at the time.   
      
   No, the 8080 can use ports, too.  Altair BASIC had INP and OUT.   
   ANY chip can use memory mapping (look at the screen locations in   
   the TRS-80) but the 68xx and 65xx series could ONLY use memory   
   mapping.   
      
   Tom Lake   
      
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