ADRK #8bit
6-42
ADRK #8bit Add to Current Auxiliary Register
SYNTAX OPTIONS OPCODE OBJMODE RPT CYC
ADRK #8bit 1111 1100 IIII IIII X − 1
Operands #8bit 8-bit immediate constant value
Description Add the 8-bit unsigned constant to the XARn register pointed to by ARP:
XAR(ARP) = XAR(ARP) + 0:8bit;
Flags and
Modes
ARP The 3-bit ARP points to the current valid Auxiliary Register, XAR0 to XAR7.
This pointer determines which Auxiliary register is modified by the operation.
Repeat This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once
Example
TableA: .word 0x1111
.word 0x2222
.word 0x3333
.word 0x4444
FuncA:
MOVL XAR1,#TableA
MOVZ AR2,*XAR1
ADRK #2
MOVZ AR3,*XAR1
; Initialize XAR1 pointer
; Load AR2 with the 16-bit value
; pointed to by XAR1 (0x1111)
; Set ARP = 1
; Increment XAR1 by 2
; Load AR3 with the 16-bit value
; pointed to by XAR1 (0x3333)
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