INTEL 80x86 : what do you think about that complicated processor ?
Hello all,
I wrote a page describing quickly the Intel 80x86 family. I would like your opinion about it and also what I could add usefull to it. Thanks http://programmershouse.ifrance.com/...ics/intel.html ---------------- INTEL 80x86 : INTEL 80x86 is a very complex and badly conceived processor. But you will find it on most desktops...because Intel has a lot of money and makes good commercial ads. GENERAL REGISTERS : EAX Accumulator EBX Base ECX Loop Counter EDX Datas ESI Source Index EDI Dest. Index ESP Stack Pointer EBP Base Pointer SEGMENT REGISTERS : CS Code Segment DS Data Seg ES Extra Data Seg FS Extra Data Seg GS Extra Data Seg SS Stack Seg OTHER REGISTERS : EIP Instr Pointer EFLAGS There are many Adressing Modes... very useless. Memory Management is a nightmare. LINKS : IA-32 Intel? Architecture Software Developer?s Manual IA-32 Intel? Architecture Software Developer's Manual Volume 2A IA-32 Intel? Arxhitecture Software Developer's Manual Volume 2B |
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i was always under the impression that the general registers didn't start with "E" unless you needed them to
and where are there little "high" and "low" registers (just makes things more complicated!) (ah, aL, bh, bl ..... etc etc etc etc) ....... or is that the later chips? |
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I think E has to do if it is 64 or 32 bits ? I didnt write about H and L to simplify things, which are already complex. |
i think its 32 bits, then 16, then 8 for the H and L
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and for 64 bits ?
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x86 chips have no general purpose 64-bit registers
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