Re^2: AMD K6 200

[Christos Ricudis]

Hello Linux-greek-users!

In <LINUX-USERS.GR> Linux-greek-users wrote:

 L> Oi epeksergastes 686 exoun diaforetiki texnologia apo tous
 L> pentium kai diaforetiko op-code set. Einai vasismenoi se 
 L> texnologia Risc, eno oi pentium se texnologia Sisc.

E, xm, oxi, ayto einai la8os. to opcode set enos epeksergasth kai h
arxitektonikh toy den einai eykola parametropoihshma pragmata, einai zhthmata
sxediasmoy. Oloi oi X86-compatible epeksergastes ousiastika einai CISC. Mporei
kapoioi na basizontai se kapoia psiloRISC-designed cores kai opcode emulation,
alla 8ewrountai panta CISC mia poy sygkekntrwnoyn ola ta xarakthristika twn
CISC epeksergastwn (pollapla addressing modes, sygkritika ligoys general
purpose registrers, mikres pipelines, metablhto mege8os opcodes, megalo command
set, mikrh sxetika syxnothta leitoyrgias). 

Mhn perimenete na doyme syntoma pragmatika dual-personality epeksergastes, ayto
anhkei mallon sth sfaira ths fantasias pros to paron. Pragmatika RISC designs
apaitoyn rizikes allages toso sto opcode set kai ta semantics toy X86 oso kai
sthn eswterikh toy arxitektonikh, pragma poy 8a exei san apotelesma ena entelws
kainoyrio, asymbato epeksergasth. 

H kalyterh lysh einai to software emulation pantws. H Digital me to FX32 exei
petyxei symfwna me ta legomena ths performance analogo me pentium sta 200MHz
xrhsimopoiwntas ton Alpha AXP21164 sta 500MHz. 

Christos Ricudis, ricudis at paiko.the.forthnet.gr         2:413/11.0.
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