Epson S1C63000 User Manual
Page 45
S1C63000 CORE CPU MANUAL
EPSON
39
CHAPTER 4: INSTRUCTION SET
Memory
[%X], [X] ............. Memory where the X register specifies
[%Y], [Y] ............. Memory where the Y register specifies
[00addr6] ............ Memory within 0000H to 003FH where the addr6 specifies
[FFaddr6] ............ Memory within FFC0H to FFFFH where the addr6 specifies
[%SP1], [SP1] ...... 16-bit address stack where the SP1 specifies
[%SP2], [SP2] ...... 4-bit data stack where the SP2 specifies
Flags
Z ........................... Zero flag
C ........................... Carry flag
I ............................ Interrupt flag
E ........................... Extension flag
↑ ...........................
Flag is set
↓ ...........................
Flag is reset
↕ ............................ Flag is set or reset
– ............................ Flag is not changed
Operations and others
+ ........................... Addition
- ............................ Subtraction
∧ ...........................
Logical product
∨ ...........................
Logical sum
∀ ...........................
Exclusive OR
← ..........................
Data load
↔ ..........................
Data exchange
Extended addressing mode (EXT.mode)
●
●
.......................... Can be used
× ............................
Cannot be used (prohibit use)