整个解释器的核心是一个虚拟的寄存器机器，及其支持的一套基本指令集。
The core of the scheme interpreter is the Virtual Register Machine with a set of supported basic instructions.
该寄存器机器还要基于向量模型来管理内存，并实现垃圾回收机制。
In the Virtual Register Machine, the memory is managed through vector model with the garbage collection facility.
如果在MSR(机器状态寄存器)中可用的浮点位被禁用，将尝试执行一个浮点指令。
An attempt was made to execute a floating point instruction when the floating point available bit in the MSR (machine status register) was disabled.
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