... D=0, instructions are 16-bit instructions, with 16-bit offsets and 16-bit registers Stacks are assumed 16-bit wide and SP is used • When D=1, 32-bits are assumed Allows 808 6-8 0286 programs to run ... 000 001 010 011 100 101 110 111 Data, read-only Data, read/write Stack, read-only Stack, read/write Code, execute-only Code, execute/read Code, execute-only, conforming Code, execute/read, conforming ... COUNT Y IVERSITY O F M YLAND BA L 1966 U M B C AR Base (2 3-0 ) Micro Arch II 16 15 Limit (1 5-0 ) CMPE 310 UMBC 14 (Feb 2, 2002) Bit 0-1 5, 1 6-1 9: Although the limit is still 20 bits (and the G bit...