The 68020 201
6. 256 bytes.
7. 32 bits.
8. The cache control register, CACR, and the cache address register,
CAAR.
9. The cache must be cleared so that it doesn’t contain instructions that
do not match the actual contents of memory.
10. It makes indexing into arrays much easier.
11. 1, 2, 4, or 8.
12. (bd,An,Rn.<size>*<scale>)
13. Any element is optional.
14. The 68020 addressing modes that use the contents of a memory
location as the address of the actual data.
15. A full 32-bit displacement.
16. Various combinations of 16-, 32-, and 64-bit operands are allowed.
17. EXTB.L DO
18. A bit field must be 32 bits or less.
19. In a register or memory.
20. A section of code similar to a subroutine that can be granted access
rights.
21. The CALLM (call module) and the RTM (return from module) in
structions.
22. The compare and swap instructions CAS and CAS2.
23. CHP2.L BOUNDS,DO
BCC ERROR
BOUNDS: DC.L 21,74
24. To convert to and from ASCII and BCD.
25.
TRAPMI
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