NEC mPD784225 Series User Manual page 509

Table 26-1. Differences Between 78K/IV ROM Correction and 78K/0 ROM Correction
Difference
Generated command codes
Change of the stack pointer
Address comparison conditions
Correction status flag
Jump destination address during
correction
CHAPTER 26 ROM CORRECTION
78K/IV
CALLT instruction
(1-byte instruction:
FCH, FDH, FEH, FFH)
Yes (3-byte save)
Instruction fetch only
None
As there is a possibility that the
addresses match owing to an invalid
fetch, the status is not necessary
CALLT Table
0078H, 007AH, 007CH, 007EH
User's Manual U12697EJ3V0UM
78K/0
Branch instruction for peripheral RAM
(3-byte instruction)
None
Instruction fetch only
Yes
Fixed address on the peripheral RAM
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