S1C63000 CORE CPU MANUAL EPSON 107
CHAPTER 4: INSTRUCTION SET
LDB %BA,%rr Load rr reg. into BA reg. 1 cycle
Function: BA ← rr
Loads the content of the rr register (XL, XH, YL or YH) into the BA register.
Code: Mnemonic MSB LSB
LDB %BA,%XL 11111110010001FC8H
LDB %BA,%XH 11111110010011FC9H
LDB %BA,%YL 11111110010101FCAH
LDB %BA,%YH 11111110010111FCBH
Flags: EICZ
↓ –––
Mode: Src: Register direct
Dst: Register direct
Extended addressing: Invalid
LDB %BA,%sp Load stack pointer into BA reg. 1 cycle
Function: BA ← sp
Loads the content of the stack pointer sp (SP1 or SP2) into the BA register.
Code: Mnemonic MSB LSB
LDB %BA,%SP1 111111100110X1FCCH, (1FCDH)
LDB %BA,%SP2 111111100111X1FCEH, (1FCFH)
Flags: EICZ
↓ –––
Mode: Src: Register direct
Dst: Register direct
Extended addressing: Invalid
