231
Chapter 8
Interrupt/Exception Processing Function
Preliminary User’s Manual U15839EE1V0UM00
(2)
Restore
Recovery from an exception 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 8-25 illustrates the restore processing from an exception trap.
Figure 8-25:
Restore Processing from Exception Trap
DBRET instruction
PC
PSW
DBPC
DBPSW
Jump to address of restored PC
Summary of Contents for mPD703128
Page 6: ...6 Preliminary User s Manual U15839EE1V0UM00 ...
Page 20: ...20 Preliminary User s Manual U15839EE1V0UM00 ...
Page 32: ...32 Preliminary User s Manual U15839EE1V0UM00 MEMO ...
Page 154: ...154 Preliminary User s Manual U15839EE1V0UM00 MEMO ...
Page 238: ...238 Preliminary User s Manual U15839EE1V0UM00 MEMO ...
Page 356: ...356 Preliminary User s Manual U15839EE1V0UM00 MEMO ...
Page 522: ...522 Preliminary User s Manual U15839EE1V0UM00 MEMO ...
Page 600: ...600 Preliminary User s Manual U15839EE1V0UM00 MEMO ...
Page 610: ...610 Preliminary User s Manual U15839EE1V0UM00 ...
Page 612: ......