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- From: pfk@rz.uni-jena.de (Frank Klemm)
- Newsgroups: comp.sys.intel
- Subject: Re: Intel claims the Pentium is 64-bit! (who cares if it real
- Message-ID: <1992Dec14.193040.26879@rz.uni-jena.de>
- Date: 14 Dec 92 19:30:40 GMT
- References: <tim-081292112603@129.38.222.43> <723877924snz@mccomp.demon.co.uk>
- Sender: pfk@rz.uni-jena.de (Frank Klemm)
- Reply-To: pfk@rz.uni-jena.de (Frank Klemm)
- Organization: Friedrich-Schiller-University Jena, Germany
- Lines: 35
-
-
- Z80
- ~~~
- The 8 bit registers are A, B, C, D, E, H, L, IXL, IXH, IYL, IYH. The 8 bit accu is A. The following
- addressings modes are available (HL), (IX+n), (IY+n)
- The following operations are available:
-
- MOV r,r MOV r,n MOV A,(nn) MOV (nn),A
- ADD A,r
- ADC A,r
- SUB A,r
- SBB A,r
- AND A,r
- OR A,r
- XOR A,r
- CMP A,r
- INC r
- DEC r
- TEST r,(1 << s)
-
- The 16 bit registers are BC, DE, HL, IX and IY. The 16 bit accu can be used HL, IX and IY.
- The following operations are available.
-
- MOV rr,nn MOV rr,(nn) MOV (nn),rr
- ADC aa,rr
- SBB aa,rr
- INC rr
- DEC rr
- PUSH rr
- POP rr
-
- To my mind the Z80 is a 8 bit processor with many helpful 16 bit stuff. If you know the 6502/10 series (C64),
- it is much easier to program the Z80 becuase of that.
-
- Frank
-