UPSD3313D-40T6 datasheet(36/231 Pages) STMICROELECTRONICS

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Table 10. Program Branching Instruction Set

Note: 1. All mnemonics copyrighted ©Intel Corporation 1980.

Table 11. Miscellaneous Instruction Set

Note: 1. All mnemonics copyrighted ©Intel Corporation 1980.

Table 12. Notes on Instruction Set and Addressing Modes

Mnemonic(1)

and Use

Description

Length/Cycles

ACALL

addr11

Absolute subroutine call

2 byte/2 cycle

LCALL

addr16

Long subroutine call

3 byte/2 cycle

RET

Return from subroutine

1 byte/2 cycle

RETI

Return from interrupt

1 byte/2 cycle

AJMP

addr11

Absolute jump

2 byte/2 cycle

LJMP

addr16

Long jump

3 byte/2 cycle

SJMP

rel

Short jump (relative addr)

2 byte/2 cycle

JMP

@A+DPTR

Jump indirect relative to the DPTR

1 byte/2 cycle

rel

Jump if ACC is zero

2 byte/2 cycle

JNZ

rel

Jump if ACC is not zero

2 byte/2 cycle

CJNE

A, direct, rel

Compare direct byte to ACC, jump if not equal

3 byte/2 cycle

CJNE

A, #data, rel

Compare immediate to ACC, jump if not equal

3 byte/2 cycle

CJNE

Rn, #data, rel

Compare immediate to register, jump if not equal

3 byte/2 cycle

CJNE

@Ri, #data, rel

Compare immediate to indirect, jump if not equal

3 byte/2 cycle

DJNZ

Rn, rel

Decrement register and jump if not zero

2 byte/2 cycle

DJNZ

direct, rel

Decrement direct byte and jump if not zero

3 byte/2 cycle

Mnemonic(1)

and Use

Description

Length/Cycles

NOP

No Operation

1 byte/1 cycle

direct

8-bit address for internal 8032 DATA SRAM (locations 00h - 7Fh) or SFR registers (locations 80h - FFh).

@Ri

8-bit internal 8032 SRAM (locations 00h - FFh) addressed indirectly through contents of R0 or R1.

#data

8-bit constant included within the instruction.

#data16

16-bit constant included within the instruction.

addr16

16-bit destination address used by LCALL and LJMP.

addr11

11-bit destination address used by ACALL and AJMP.

rel

Signed (two-s compliment) 8-bit offset byte.

bit

Direct addressed bit in internal 8032 DATA SRAM (locations 20h to 2Fh) or in SFR registers (88h, 90h,

98h, A8h, B0, B8h, C0h, C8h, D0h, D8h, E0h, F0h).

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