3 ms·
Yes, it had an instruction set similar in feel to the PDP-11, using 16 general-purpose "registers" and about the same set of addressing modes, but you could cha
by abecedarius 9y ago
Yes, it had an instruction set similar in feel to the PDP-11, using 16 general-purpose "registers" and about the same set of addressing modes, but you could change the base address in memory of the "register" set. (There was a BLWP instruction: branch and link with workspace pointer. https://en.wikipedia.org/wiki/Texas_Instruments_TMS9900#Instruction_set_and_addressing https://en.wikipedia.org/wiki/Texas_Instruments_TMS9900#Inst...)