Pokémon mini Development Documentation

POP = Pop Register from Stack

Hex	Mnemonic	Cycles	Regs stacked from top to bottom
A8	POP BA	3	B, A
A9	POP HL	3	H, L
AA	POP IX	3	IX(Hi), IX(Lo)
AB	POP IY	3	IY(Hi), IY(Lo)
AC	POP BR	2	BR
AD	POP EP	2	EP
AE	POP IP	3	XP, YP
AF	POP SC	2	SC
CF B4	POP A	3	A
CF B5	POP B	3	B
CF B6	POP L	3	L
CF B7	POP H	3	H
CF BC	POP ALL	44	B, A, H, L, IX(Hi:Lo), IY(Hi:Lo), BR
CF BD	POP ALE	56	B, A, H, L, IX(Hi:Lo), IY(Hi:Lo), BR, EP, XP, YP

Execute

A  = Register A
B  = Register B
L  = Register L
H  = Register H
BR = Register BR
SC = Register SC
EP = Register EP
XP = Register XP
YP = Register YP
BA = Register BA: (B shl 8) or A
HL = Register HL: (H shl 8) or L
IX = Register IX
IY = Register IY
SP = Register SP (Stack Pointer)

POP 16-bits

; POP r16
;
; r16 = 16-bits Register (BA, HL, IX or IY)

r16 = (Memory[SP+1] SLL 8) OR Memory[SP]
SP = SP + 2

POP 8-bits

; POP r8
;
; r8  =  8-bits Register (A, B, L, H, BR, EP and SC)

r8 = Memory[SP]
SP = SP + 1

POP IP

; POP IP

XP = Memory[SP+1]
YP = Memory[SP]
SP = SP + 2

POP ALL

; POP ALL

B = Memory[SP+8] = B
A = Memory[SP+7] = A
H = Memory[SP+6] = H
L = Memory[SP+5] = L
IX = (Memory[SP+4] SLL 8) OR Memory[SP+3]
IY = (Memory[SP+2] SLL 8) OR Memory[SP+1]
BR = Memory[SP]
SP = SP + 9

POP ALE

; POP ALE

B = Memory[SP+11]
A = Memory[SP+10]
H = Memory[SP+9]
L = Memory[SP+8]
IX = (Memory[SP+7] SLL 8) OR Memory[SP+6]
IY = (Memory[SP+5] SLL 8) OR Memory[SP+4]
BR = Memory[SP+3]
EP = Memory[SP+2]
XP = Memory[SP+1]
YP = Memory[SP]
SP = SP + 12

Description

Pop register(s) from the stack.

Conditions

None

Examples

; BA = 0x1337
; SP = 0x2000
PUSH BA
; BA = 0x1337
; SP = 0x1FFE
LD A, 0x80
; BA = 0x1380
; SP = 0x1FFE
INC B
; BA = 0x1480
; SP = 0x1FFE
POP BA
; BA = 0x1337
; SP = 0x2000

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