Computer Hardware User's Guide

DP read
DP written
Resolving Register Conflicts
8-21 Pipeline Operation
Example 8–16. Write to DP Followed by a Direct Memory Read Without a Pipeline Conflict
LDP TABLE_ADDR
POP R0
LDF *–AR3(2),R1
LDI @TABLE_ADDR,AR0
PUSHF R6
PUSH R4
Pipeline Operation
PC Fetch
Decode Read Execute
n LDP — — —
n+1 POP LDP — —
n+2 LDF POP LDP —
n+3 LDI LDF POP LDP
n+4 PUSHF LDI LDF POP
n+5 PUSH PUSHF LDI LDF