Popc - Renesas R8C/Tiny Series Software Manual

Chapter 3 Functions

POPC

[ Syntax ]
POPC dest
[ Operation ]
dest M(SP)
SP *1 SP
dest
*1 When is SP or when the U flag = 0 and
[ Function ]
• This instruction restores data from the stack area to the control register indicated by
• When restoring an interrupt table register, always be sure to restore INTBH and INTBL in succession.
• No interrupt requests are accepted immediately after this instruction.
[ Selectable dest ]
[ Flag Change ]
Flag
U I O
Change
*3 *3 *3 *3 *3 *3 *3 *3
[ Description Example ]
POPC SB
[ Related Instructions ]
Rev.2.00 Oct 17, 2005
REJ09B0001-0200
Restore control register
POP Control register
+ 2
B S Z D C
PUSHC, LDC, STC, LDINTB
page 102 of 263
[ Instruction Code/Number of Cycles ]
dest
is ISP, 2 is not added to SP.
FB SB SP *2
*2 Operation is performed on the stack pointer indi-
cated by the U flag.
*3 The flag changes only when
3.2
POPC
dest
dest
ISP FLG INTBH INTBL
dest
is FLG.
Functions
Page: 213
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