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Epson S1C63000 User Manual

Page 45

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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)