CHAPTER 7 INTERRUPT/EXCEPTION PROCESSING FUNCTION
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User’s Manual U14492EJ3V0UD
(2) Restore
Recovery from a debug trap is carried out by the DBRET instruction. By executing the DBRET instruction,
the CPU carries out the following processing and controls the address of the restored PC.
(1) Loads the restored PC and PSW from DBPC and DBPSW.
(2)
Transfers control to the address indicated by the restored PC and PSW.
Figure 7-13 illustrates the restore processing from a debug trap.
Figure 7-13. Restore Processing from Debug Trap
DBRET instruction
PC
PSW
DBPC
DBPSW
Jump to address of restored PC
Содержание V850E/IA1 mPD703116
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