ָIJ(sh)
ָIJ(sh)(sh)ַķʽQ錤ַʽָIJ(sh)ׂ(g)
1(sh)ָСȡָͬr(sh)(sh)ҲSȡ@N(sh)Q(sh)
2(sh)CPUij(g)(ni)ĴԓĴCPU(ni)ȡ(sh)Ҳ^
3(sh)ڃ(ni)惦(ch)Сڃ(ni)惦(ch)CPUⲿڌҴ˷N(sh)r(sh)Ҫ(zh)һ(g)ҵԓ(sh)ڃ(ni)дŵĵַُԓ ַȡ(sh)80x86C(j)ϵy(tng)Уκ(ni)ԪĵַɶλַƫƵַַQƫMλַɶμĴṩƫƵַtĂ(g) ֽM϶ɣ
ַĴ
gַĴQ׃ַĴ
λ
@Ă(g)ֱQƫƵַԪһ㌢@ķNԪذijNӋ(j)㷽MγɵƫƵַQЧַEAEffectiveAddressĽMϷʽӋ(j)㷽飺
EAַ+gַ×ӣ+λ
16λַr(sh)λ8λ16λBXBPַĴSIDIgַĴӞ1
32λַr(sh)ʹ8λ32λλ32λͨüĴַĴgַĴESPgַҿɲ248Nͬıӡ
@ķNԪؿɃ(yu)Mϳ9N惦(ch)ַʽ(sh)ַͼĴַ11NַʽԔ(x)ӑՓf(sh)(j)ČַʽԅRZеMOVָָĸʽ飺MOVĿ(bio)(sh)Դ(sh)书njԴ(sh)͵Ŀ(bio)(sh)
1.(sh)ַImmediateAddressing
ָ(sh)ָУڲaOP(sh)8λ16λ32λָ(zh)^(sh)ָһֱӏָA(y)ȡԪȡҪL惦(ch)@Nַʽ(zh)ٶȿ
磬MOVAX1020Hָ1020H(sh)ԓָĹnj(sh)1020H͵AX(zh)ʾDҊ
(sh)ַr(sh)ֻSԴ(sh)(sh)Ŀ(bio)(sh)ǼĴ惦(ch)ǽoĴ惦(ch)Ԫxֵ
2.ĴַRegisterAddressing
ָ(sh)CPUij(g)Ĵڴȡ(sh)CPU(ni)M(jn)УԈ(zh)ٶȿ
磺MOVAL,BL
(zh)rҊ
3.ֱӌַDirectAddressing
(sh)һڴ惦(ch)Ĕ(sh)(j)У(sh)ЧַEA16λ32λָoֱӌַУȡò(sh)Ų(sh)Ĵ惦(ch)Ԫַ(sh)ڔ(sh)(j)tãַDS×16+EA^
磺MOVAX,DS[2000H]
O(sh)DS3000Hַ3000H×16+2000H32000H惦(ch)32000H32001Hɂ(g)Ԫă(ni)͵AXĴע͵ַĴ惦(ch)Ԫ32000Hă(ni)͵AXĵֹ(ji)AL
ֱӌַS÷̖(ho)ַ攵(sh)ֵַ磺MOVAX[DATA]˕r(sh)׃DATAŲ(sh)Ĵ惦(ch)Ԫķ̖(ho)ַָ߀Ɍ飺MOVAX,DATAǵЧġֱӌַm̎(g)׃
4.ĴgӌַRegisterIndirectAddressing
(sh)ڴ惦(ch)(sh)ЧַEAij(g)ĴReg䌤ַʽĴʹ16λַ32λַr(sh)һӡ
116λַ
ƫƵַSIDIBXBP
ָָļĴBXSIDIt(sh)ڔ(sh)(j)(sh)ַ飺
ַDS×16+BX
……SI
……DI
ָָļĴBPt(sh)ڶїУλַSS(sh)ַ飺
ַSS×16+BP
232λַ
8(g)32λͨüĴĴgӌַáESPEBPĬJ(rn)μĴSS6(g)ͨüĴĬJ(rn)μĴDS
ߣW(xu)W(wng) ԴW(xu)W(wng)
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