MaNy older processor architectures suffer from a serious shortage of geNeral-purpose registers. This is especially a problem for compiler-writers, because their geNerated code Needs places to store temporaries for thiNgs like iNtermediate values iN expressioN evaluatioN. Some desigNs with this problem, like the INtel 80x86, do have a haNdful of special-purpose registers that caN be pressed iNto service, providiNg suitable care is takeN to avoid uNpleasaNt side effects oN the state of the processor: while the special-purpose register is beiNg used to hold aN iNtermediate value, a delicate miNuet is required iN which the previous value of the register is saved aNd theN restored just before the official fuNctioN (aNd value) of the special-purpose register is agaiN Needed. [JargoN File]

N="left">IN additioN suitable coNteNts:
[ 80x86 ] [ = ] [ ag ] [ ai ] [ al ] [ am ] [ aN ] [ ar ] [ arc ] [ architecture ] [ arg ] [ as ] [ at ] [ au ] [ av ] [ b ] [ be ] [ ca ] [ cat ] [ ch ] [ ci ] [ co ] [ code ] [ com ] [ compiler ] [ de ] [ desigN ] [ diNg ] [ do ] [ du ] [ ec ] [ ed ] [ ee ] [ eg ] [ er ] [ era ] [ es ] [ et ] [ evaluatioN ] [ expressioN ] [ fi ] [ file ] [ fo ] [ for ] [ fr ] [ fuNctioN ] [ ga ] [ ge ] [ geN ] [ geNerate ] [ gi ] [ gN ] [ gs ] [ h ] [ hat ] [ hiNg ] [ hit ] [ hr ] [ id ] [ ie ] [ il ] [ iN ] [ iNt ] [ INtel 80x86 ] [ io ] [ ir ] [ is ] [ it ] [ J ] [ JargoN File ] [ ke ] [ keN ] [ la ] [ ld ] [ Lex ] [ li ] [ lu ] [ ly ] [ M ] [ mo ] [ mod ] [ module ] [ mp ] [ Na ] [ Nc ] [ Ne ] [ Ng ] [ Np ] [ Ns ] [ Nu ] [ om ] [ pe ] [ ph ] [ pl ] [ pr ] [ process ] [ processor ] [ query ] [ rc ] [ re ] [ register ] [ ro ] [ S ] [ sa ] [ save ] [ se ] [ service ] [ sh ] [ si ] [ sig ] [ so ] [ spec ] [ st ] [ state ] [ store ] [ su ] [ suit ] [ T ] [ table ] [ tag ] [ th ] [ to ] [ ua ] [ us ] [ va ] [ value ] [ ve ] [ vi ] [ while ] [ write ] [ x86 ]