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LD JKHL,(ps+d)     Load     Rabbit 4000/5000 Instruction

Opcode	Instruction	Operation
--	LD JKHL,(ps+d)	JKHL= (ps+d)
FD 0E d	LD JKHL,(PW+d)	JKHL= (PW+d)
FD 1E d	LD JKHL,(PX+d)	JKHL= (PX+d)
FD 2E d	LD JKHL,(PY+d)	JKHL= (PY+d)
FD 3E d	LD JKHL,(PZ+d)	JKHL= (PZ+d)

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 4000	15	n/a	n/a
Rabbit 5000	16	15	14

Flags				ALTD			IOI/IOE
S	Z	L/V	C	F	R	SP	S	D
-	-	-	-		·

Description

Loads JKHL with the data whose address is treated either as a logical address that will be passed through the MMU for translation into a physical address or as a physical address that does not need MMU translation.

If ps is 0xFFFFxxxx, i.e., the upper 16 bits are all ones, it represents a logical address. This is called a "long logical" address. Otherwise, it is a physical address with the low 20 bits or 24 bits being significant (depending on the memory available).

The address is computed as the sum of ps and the 8-bit signed displacement d.