4554 Datasheet, PDF (116/138 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4554 Group
MACHINE INSTRUCTIONS (continued)
Parameter
Instruction code
Mnemonic
Type of
instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Hexadecimal
notation
Ba
0 1 1 a6 a5 a4 a3 a2 a1 a0 1 8 a 1
+a
BL p, a
0 0 1 1 1 p4 p3 p2 p1 p0 0 E p 2
+p
1 p6 p5 a6 a5 a4 a3 a2 a1 a0 2 p a
+p +a
BLA p
0 0 0 0 0 1 0 0 0 0 010 2
1 p6 p5 p4 0 0 p3 p2 p1 p0 2 p p
+p
BM a
0 1 0 a6 a5 a4 a3 a2 a1 a0 1 a a 1
BML p, a 0 0 1 1 0 p4 p3 p2 p1 p0 0 C p 2
+p
1 p6 p5 a6 a5 a4 a3 a2 a1 a0 2 p a
+p +a
BMLA p 0 0 0 0 1 1 0 0 0 0 0 3 0 2
1 p6 p5 p4 0 0 p3 p2 p1 p0 2 p p
+p
Function
1 (PCL) ← a6–a0
2 (PCH) ← p (Note)
(PCL) ← a6–a0
2 (PCH) ← p (Note)
(PCL) ← (DR2–DR0, A3–A0)
1 (SP) ← (SP) + 1
(SK(SP)) ← (PC)
(PCH) ← 2
(PCL) ← a6–a0
2 (SP) ← (SP) + 1
(SK(SP)) ← (PC)
(PCH) ← p (Note)
(PCL) ← a6–a0
2 (SP) ← (SP) + 1
(SK(SP)) ← (PC)
(PCH) ← p (Note)
(PCL) ← (DR2–DR0,A3–A0)
RTI
0 0 0 1 0 0 0 1 1 0 0 4 6 1 1 (PC) ← (SK(SP))
(SP) ← (SP) – 1
RT
0 0 0 1 0 0 0 1 0 0 0 4 4 1 2 (PC) ← (SK(SP))
(SP) ← (SP) – 1
RTS
0 0 0 1 0 0 0 1 0 1 0 4 5 1 2 (PC) ← (SK(SP))
(SP) ← (SP) – 1
Note: p is 0 to 63 for M34554M8,
p is 0 to 95 for M34554MC and
p is 0 to 127 for M34554ED.
Rev.3.00 Aug 06, 2004 page 116 of 136
REJ03B0043-0300Z