Programming model and register set The programming model and register set of the MC88100 is remarkably similar to
DLX (and by extension,
RISC-V) based CPUs, with 32
General-purpose registers (31 writable) and 51 instructions capable of accessing any of the 32 general-purpose registers at any time.
Registers The MC88100 is equipped with a total of 64 user-accessible registers, 32 of them being
Control registers, and can access up to 6 registers (4 read, 2 write) simultaneously. The actual usage of GPR is not enforced by the processor for every register except R1, which is used as a return address. ==Notes==