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IIRC it also introduced index based addressing. Before that, people just wrote self modifying code to index arrays...
by solarexplorer 2y ago
IIRC it also introduced index based addressing. Before that, people just wrote self modifying code to index arrays...
- adrian_b 2y agoTrue. The 8 index registers ("B-tube") are called B0 to B7 in this manual. The B0 index register is hardwired to have the read-only value "0". A read-only null register continues to be used in many modern instruction sets, e.g. in POWER or in Aarch64.