Christos TZOTZIOY Georgiou wrote:
For example, one could issue the following *single* instruction:
MOVE.L ($18000), ($18004)
But the cost of that design is that the machine state becomes more
complicated -- the instruction has to have two distinct memory ops.
Usually this means there is a "secret register" for the moving data,
and a "first part done" part of executing the opcode.
Modern RISC-structured machines have at most one memory operation,
so the instruction is simply completed or not, and can safely be
re-executed if it is not complete.
--Scott David Daniels
[EMAIL PROTECTED]
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