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The NEC V30MZ is the CPU component of the WonderSwan SoC.

Unlike the NEC V20/V30 CPU family, the V30MZ is fully compatible with the Intel 80186's documented behaviour, as well as some of its undocumented behaviour (such as the SALC opcode); it also omits the V20/V30's opcode extensions.

The NEC V30MZ datasheet uses distinct names for opcodes and registers (NEC names); as all homebrew compilers and assemblers for the platform utilize Intel's official naming (Intel names), the latter is what the wiki has standardized on.