CHAPTER 11 INSTRUCTION SET
290 Users Manual U10676EJ3V0UM
11.4.15 Special instructions
SEL RBn
Function: RBS n n = N1-0: 0-3
Sets 2-bit immediate data n to the register bank select register (RBS).
SEL MBn
Function: MBS n n = N3-0: 0, 4, 15
Transfers 4-bit immediate data n to the memory bank select register (MBS).
GETI taddr
Function: taddr = T5-0, 0: 20H to 7FH
[MkI mode]
When table defined by TBR instruction is referenced
PC11-0 (taddr)3-0 + (taddr+1)
When table defined by TCALL instruction is referenced
(SP1) PC7-4, (SP2) PC3-0
(SP3) MBE, RBE, 0, 0
(SP4) PC11-8
PC11-0 (taddr)3-0 + (taddr+1)
SP SP4
When table defined by instruction other than TBR and TCALL is referenced
Executes instruction with (taddr) (taddr+1) as op code
[MkII mode]
When table defined by TBR instruction is referencedNote
PC11-0 (taddr)3-0 + (taddr+1)
When table defined by TCALL instruction is referencedNote
(SP2) ×, ×, MBE, RBE
(SP3) PC7-4, (SP4) PC3-0
(SP5) 0, 0, 0, 0, (SP6) PC11-8
PC11-0 (taddr)3-0 + (taddr+1), SP SP6
When table defined by instruction other than TBR and TCALL is referenced
Executes instruction with (taddr) (taddr+1) as op code
Note The address specified by the TBR and TCALL instructions is limited to 0000H to 0FFFH.
I/II