TBLWT*+

Detailed reference for the TBLWT*+ instruction in PIC18 ISA.

Description

Write the contents of WREG into the table location addressed by TBLPTR, then post‑increment TBLPTR by one.

The instruction has no operands.
After the write, TBLPTR automatically increments, so the next write will address the following byte.

Examples

; TBLPTR set to 0x2000, WREG contains 0xAB – write and increment
TBLWR+I ; writes 0xAB to table at 0x2000; TBLPTR becomes 0x2001

; TBLPTR set to 0x2000, WREG contains 0xAB – write and increment
TBLWR+I ; writes 0xAB to table at 0x2000; TBLPTR becomes 0x2001

; TBLPTR set to 0x200F, WREG contains 0x55 – write and increment across page boundary
TBLWR+I ; writes 0x55 to 0x200F; TBLPTR becomes 0x2010

; TBLPTR set to 0x200F, WREG contains 0x55 – write and increment across page boundary
TBLWR+I ; writes 0x55 to 0x200F; TBLPTR becomes 0x2010

; TBLPTR pre‑loaded with 0x3000, WREG = 0x00 – clear table byte and increment
TBLWR+I ; writes 0x00 to 0x3000; TBLPTR becomes 0x3001

; TBLPTR pre‑loaded with 0x3000, WREG = 0x00 – clear table byte and increment
TBLWR+I ; writes 0x00 to 0x3000; TBLPTR becomes 0x3001

; WREG has been loaded with a literal value (e.g., MOVLW 0x10 was executed before)
TBLWR+I ; writes 0x10 to the table address in TBLPTR; TBLPTR increments by one

; WREG has been loaded with a literal value (e.g., MOVLW 0x10 was executed before)
TBLWR+I ; writes 0x10 to the table address in TBLPTR; TBLPTR increments by one