Instructions providing new functionality for utilization by a target system program of host system container words during computer system emulation with host word size larger than that of the emulated machine
申请公布号:US7689403(B2)
申请号:US20080148205
申请日期:2008.04.17
申请公布日期:2010.03.30
发明人:GUENTHNER RUSSELL W.;ANDRESS SIDNEY L;HEATH JOHN
分类号:G06F9/455
主分类号:G06F9/455
摘要:Two unique instructions for the instruction set of a target 36-bit machine which is emulated on a host 64-bit machine are provided in order to achieve visibility, to an emulated application program, of a“containing”word stored in the memory of the host machine. A“LOAD64”instruction loads the emulator memory location representing an emulated“Q”(supplementary accumulator) register with the“normal”36-bits of the containing word. At the same time, the“upper”28 bits of the 64-bit containing word is copied into the emulator memory location representing an emulated“A”(accumulator) register. Thus, the emulated 36-bit machine“sees”and can examine the 64-bit word in its entirety. A“Store64”instruction stores the emulated“Q”register contents into the lower 36-bits of the 64-bit containing word, and at the same time stores the lower 28 bits of the emulated“A”register contents into the upper 28 bits of the 64-bit containing word.
CATALYST FOR OXIDATIVE AMMONOLYSIS OF PROPYLENE
Innretning for transport av forskjellige væsker og gass i samme beholder
RAILWAY PLATFORM WITH BODY FOR CARRYING SEMITRAILERS
BRAKE SYSTEM WITH ANTILOCK CONTROL AND/OR SLIP CONTROL AT TRACTION EFFORT
METHOD FOR TREATMENT OF ACUTE INSULIN-DEPENDENT DIABETES
METHOD FOR TREATMENT OF RETINAL DETACHMENT COMPLICATED WITH SUBRETINAL SCHWART FORMATION
METHOD OF STRENGTHENING PIPE LINE OPERATED UNDER PRESSURE
METHOD FOR DIFFERENTIAL DIAGNOSIS OF PERIPHERAL VITREOCHORIORETINAL DYSTROPHY