UPD703100 Datasheet, PDF (160/185 Pages) NEC – 32-Bit Single-Chip Microcontrollers

APPENDIX A INSTRUCTION MNEMONICS (IN ALPHABETICAL ORDER)
Table A-1. Instruction Mnemonics (in Alphabetical Order) (2/12)
Instruction
Mnemonic
Operand
Format CY OV S Z SAT
Instruction Function
CLR1
reg2 [reg1]
IX
−−− *
− Clear Bit. First, reads the data of reg1 to
generate a 32-bit address. Then clears the bit
specified by the data of lower 3 bits of reg2 of
the byte data referenced by the generated
address.
CMOV
cccc, reg1, reg2, reg3
XI
−−−−
− Conditional Move. Reg3 is set to reg1 if the
condition specified by condition code “cccc” is
satisfied; otherwise, set to the data of reg2.
CMOV
CMP
cccc, imm5, reg2, reg3 XII
−−−−
− Conditional Move. Reg3 is set to the data of 5-
immediate, sign-extended to word length, if the
condition specified by condition code “cccc” is
satisfied; otherwise, set to the data of reg2.
reg1, reg2
I
* * * * − Compare. Compares the word data of reg2 with
the word data of reg1, and indicates the result
by using the condition flags. To compare, the
contents of reg1 are subtracted from the word
data of reg2.
CMP
imm5, reg2
II
* * * * − Compare. Compares the word data of reg2 with
the 5-bit immediate data, sign-extended to
word-length, and indicates the result by using
the condition flags. To compare, the contents of
the sign-extended immediate data are
subtracted from the word data of reg2.
CTRET
X
****
* Restore from CALLT. Fetches the restore PC
and PWS from the appropriate system register
and restores from the routine called by CALLT.
DI
−
X
− − − − − Disables Interrupt. Sets the ID flag of the PSW
to 1 to disable the acknowledgement of
maskable interrupts; interrupts are immediately
disabled at the start of this instruction
execution.
DISPOSE imm5, list12
XIII − − − − − Function Dispose. Adds the data of 5-bit
immediate imm5, logically shifted left by 2 and
zero-extended to word length, to sp. Then pops
(loads data from the address specified by sp
and adds 4 to sp) the general-purpose registers
listed in list12.
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User’s Manual U12197EJ6V0UM