NEC PD75402A Manuale Utente
169
CHAPTER 9. INSTRUCTION SET
9.4.8
Bit Manipuration Instructions
SET1 mem. bit
Function: (mem. bit)
←
1; mem = D
7
to D
0
: 00H to 3FH, bit = B
1
to B
0
: 0 to 3
Sets the bit specified by 2-bit immediate data bit of the address specified by 8-bit immediate data mem.
SET1 fmem. bit
Function: (bit specified by operand)
←
1
Sets the data memory bit specified by bit manipulation addressing (fmem. bit).
CLR1 mem. bit
Function: (mem. bit)
←
0; mem = D
7
to D
0
: 00H to 3FH, bit = B
1
to B
0
: 0 to 3
Clears the bit specified by 2-bit immediate data bit of the address specified by 8-bit immediate data mem.
CLR1 fmem. bit
Function: (bit specified by operand)
←
0
Clears the data memory bit specified by bit manipulation addressing (fmem. bit).
SKT mem. bit
Function: Skip if (mem. bit) = 1; mem = D
7
to D
0
: 00H to 3FH, bit = B
1
to B
0
: 0 to 3
If 2-bit immediate data bit of the address specified by 8-bit immediate data mem is 1, skips the next
instruction.
SKT fmem. bit
Function: Skip if (bit specified by operand) = 1
If the data memory bit specified by bit manipulation addressing (fmem. bit) is 1, skips the next instruction.