XC2287 / XC2286 / XC2285
XC2000 Family Derivatives
Preliminary
Functional Description
Table 8
Mnemonic
ROL/ROR
ASHR
Instruction Set Summary (cont’d)
Description
Bytes
Rotate left/right direct word GPR
2
Arithmetic (sign bit) shift right direct word GPR
Move word (byte) data
2
MOV(B)
MOVBS/Z
JMPA/I/R
JMPS
2 / 4
Move byte operand to word op. with sign/zero extension 2 / 4
Jump absolute/indirect/relative if condition is met
Jump absolute to a code segment
4
4
4
4
JB(C)
Jump relative if direct bit is set (and clear bit)
Jump relative if direct bit is not set (and set bit)
JNB(S)
CALLA/I/R
CALLS
Call absolute/indirect/relative subroutine if condition is met 4
Call absolute subroutine in any code segment
4
4
PCALL
Push direct word register onto system stack and call
absolute subroutine
TRAP
Call interrupt service routine via immediate trap number
Push/pop direct word register onto/from system stack
2
2
4
PUSH/POP
SCXT
Push direct word register onto system stack and update
register with word operand
RET(P)
Return from intra-segment subroutine
2
(and pop direct word register from system stack)
RETS
Return from inter-segment subroutine
Return from interrupt service subroutine
Software Break
2
RETI
2
SBRK
SRST
2
Software Reset
4
IDLE
Enter Idle Mode
4
PWRDN
SRVWDT
Unused instruction1)
4
Service Watchdog Timer
4
DISWDT/ENWDT Disable/Enable Watchdog Timer
4
EINIT
End-of-Initialization Register Lock
4
ATOMIC
EXTR
Begin ATOMIC sequence
2
Begin EXTended Register sequence
Begin EXTended Page (and Register) sequence
Begin EXTended Segment (and Register) sequence
2
EXTP(R)
EXTS(R)
2 / 4
2 / 4
Data Sheet
70
V0.91, 2007-02
Draft Version