Zilog EZ80F916 - Manual (Page 154)

eZ80
®
CPU
User Manual
UM007715-0415 CPU Instruction Set
145
EX (SP), HL
Exchange Stack and HL Register
Operation
if ADL = 1 {
(SPL)  HL[7:0]
(SPL+1)  HL[15:8]
(SPL+2)  HL[23:16]
}
else if ADL = 0 {
SPS  HL[7:0]
(SPS+1)  HL[15:8]
}
Description
The CPU exchanges the contents of the multibyte CPU register HL with the contents of
the memory location specified by the Stack Pointer (SP). In ADL mode, or when the .L
suffix is employed, SPL is used for SP. In Z80 mode, or when the .S suffix is employed,
SPS is used for SP.
Condition Bits Affected
None.
Attributes
Mnemonic Operand ADL Mode Cycle Opcode (hex)
EX (SP)
,HL 0/1 5/7
E3
EX.S (SP)
,HL 1 6
52, E3
EX.L (SP)
,HL 0 8
49, E3