Download H8 5XX Programming

2.2.21 LDC (LoaD to Control register)
LoaD to Control register
LDC
<Operation>
(EAs) → CR
<Condition Code>
N
∆
Z
∆
V
∆
C
∆
<Assembly-Language Format>
(1) When CR is the status register (SR or
CCR), the N, Z, V, and C bits are set
according to the result of the
operation.
(2) When CR is not the status register
(EP, TP, DP, or BR), the previous
value remains unchanged.
LDC <EAs>,CR
(Example)
LDC.B #H'01,DP
<Operand Size>
Byte
Word
(Depends on the control register)
<Description>
This instruction loads the source operand (immediate data, or general register or memory
contents) into a specified control register (CR).
The operand size specified in the instruction depends on the control register as indicated in Table
1-12 in Section 1.3.6, "Register Specification."
Interrupts are not accepted and trace exception processing is not performed immediately after the
end of this instruction.
<Instruction Format>
EA
1
0
0
0 1
c
c
c
<Addressing Modes>
Rn @Rn @(d:8,Rn) @(d:16,Rn)@–Rn @Rn+ @aa:8 @aa:16 #xx:8 #xx:16
Source
Yes Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes