Electronics America Single-Chip Microcontrollers User's Manual

CHAPTER 21 INSTRUCTION SET
338 User’s Manual U15331EJ4V1UD
Mnemonic Operands
Bytes Clocks
Operation Flag
Z AC CY
CALL !addr16 3 6 (SP − 1) ← (PC + 3)H, (SP − 2) ← (PC + 3)L,
PC ← addr16, SP ← SP − 2
CALLT [addr5] 1 8 (SP − 1) ← (PC + 1)H, (SP − 2) ← (PC + 1)L,
PC
H ← (00000000, addr5 + 1),
PC
L ← (00000000, addr5), SP ← SP − 2
RET 1 6 PCH ← (SP + 1), PCL ← (SP), SP ← SP + 2
RETI 1 8 PCH ← (SP + 1), PCL ← (SP),
PSW ← (SP + 2), SP ← SP + 3
RRR
PUSH PSW 1 2 (SP − 1) ← PSW, SP ← SP − 1
rp 1 4 (SP − 1) ← rpH, (SP − 2) ← rpL, SP ← SP − 2
POP PSW 1 4 PSW ← (SP), SP ← SP + 1 R R R
rp 1 6 rpH ← (SP + 1), rpL ← (SP), SP ← SP + 2
MOVW SP, AX 2 8 SP ← AX
AX, SP 2 6 AX ← SP
BR !addr16 3 6 PC ← addr16
$addr16 2 6 PC ← PC + 2 + jdisp8
AX 1 6 PCH ← A, PCL ← X
BC $saddr16 2 6 PC ← PC + 2 + jdisp8 if CY = 1
BNC $saddr16 2 6 PC ← PC + 2 + jdisp8 if CY = 0
BZ $saddr16 2 6 PC ← PC + 2 + jdisp8 if Z = 1
BNZ $saddr16 2 6 PC ← PC + 2 + jdisp8 if Z = 0
BT saddr.bit, $addr16 4 10 PC ← PC + 4 + jdisp8 if (saddr.bit) = 1
sfr.bit, $addr16 4 10 PC ← PC + 4 + jdisp8 if sfr.bit = 1
A.bit, $addr16 3 8 PC ← PC + 3 + jdisp8 if A.bit = 1
PSW.bit, $addr16 4 10 PC ← PC + 4 + jdisp8 if PSW.bit = 1
BF saddr.bit, $addr16 4 10 PC ← PC + 4 + jdisp8 if (saddr.bit) = 0
sfr.bit, $addr16 4 10 PC ← PC + 4 + jdisp8 if sfr.bit = 0
A.bit, $addr16 3 8 PC ← PC + 3 + jdisp8 if A.bit = 0
PSW.bit, $addr16 4 10 PC ← PC + 4 + jdisp8 if PSW.bit = 0
DBNZ B, $addr16 2 6 B ← B − 1, then PC ← PC + 2 + jdisp8 if B ≠ 0
C, $addr16 2 6 C ← C − 1, then PC ← PC + 2 + jdisp8 if C ≠ 0
saddr, $addr16 3 8 (saddr) ← (saddr) − 1, then
PC ← PC + 3 + jdisp8 if (saddr) ≠ 0
NOP 1 2 No Operation
EI 3 6 IE ← 1 (Enable interrupt)
DI 3 6 IE ← 0 (Disable interrupt)
HALT 1 2 Set HALT mode
STOP 1 2 Set STOP mode
Remark One instruction clock cycle is one CPU clock cycle (f
CPU) selected by the processor clock control
register (PCC).