gc80c520a CORERIVER Semiconductor, gc80c520a Datasheet - Page 96

• Manufacturer Part Number: gc80c520a
• Description: Midas1.0 Family Mask Rom/eprom/romless 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

Instruction Set
AJMP
addr11
Absolute Jump
Function:
Description:
AJMP transfers program execution to the indicated address, which is formed at
run-time by concatenating the high-order five bits of the PC (after incrementing
the PC twice), opcode bits 7-5, and the second byte of the instruction. The
destination must therefore be within the same 2K block of program memory as
the first byte of the instruction following AJMP.
Example:
The label “JMPADR” is at program memory location 0123h. The instruction,
AJMP JMPADR
is at location 0345h and will load the PC with 0123h.
Bytes:
2
3
Cycles:
Encoding:
a10 a9 a8 0
0 0 0 1
a7 a6 a5 a4
a3 a2 a1 a0
AJMP
Operation:
←
(PC)
(PC) + 2
←
(PC
)
page address
10-0
Preliminary
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