EMS6500 EM Microelectronic, EMS6500 Datasheet - Page 51

• Manufacturer Part Number: EMS6500
• Description: Microcontroller Development System 4-bit (Emmon), Simulators 4-bit
• Manufacturer: EM Microelectronic

Copyright  2003, EM Microelectronic-Marin SA
The rest of the instruction set can be represented in the following way.
ACCU = ACCU op RAM()
If I = 1 the instruction is indexed and if S = 1 a shift right is performed after the
operation.
The coding of the ALU operations (op<5>) is as follows.
ACCU = RAM
(LDR <R>)
Operation
NXOR
NAND
CPLA
CPLR
NOR
ADD
DEC
AND
XOR
SUB
SHL
INC
OR
Op code
01001
00110
00011
01100
01111
11000
10111
11110
10001
10110
11001
10101
10011
11100
10
op<5> S I RAM(i)<7>
43
Development System
www.emmicroelectronic.com
EM66xx
Binder 4.3-01/03 Rev. B/495