R6500-13 - One-Chip Microprocessor
R6500-13 Features
* Enhanced 6502 CPU -Four new bit manipulation instructions
* Set Memory Bit (SMB)
* Reset Memory Bit (RMB)
* Branch on Bit Set (BBS)
* Branch on Bit Reset (BBR) -Decimal and binary arithmetic modes -13 addressing modes -True indexing
* 256-byte.mask-p