4 ms·
It should be in the description for the byte instructions: LDB, DPB, IBP, and ILDB. http://bitsavers.org/pdf/dec/pdp10/1970_PDP-10_Ref/ http://bitsavers.org/pdf
by larsbrinkhoff 2y ago
It should be in the description for the byte instructions: LDB, DPB, IBP, and ILDB. http://bitsavers.org/pdf/dec/pdp10/1970_PDP-10_Ref/ http://bitsavers.org/pdf/dec/pdp10/1970_PDP-10_Ref/
Basically, loading a 0-bit byte from memory gets you a 0. Depositing a 0-bit byte will not alter memory, but may do an ineffective read-modify-write cycle. Incrementing a 0-bit byte pointer will leave it unchanged.