ST10F271B datasheet(49/180 Pages) STMICROELECTRONICS

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ST10F271B/ST10F271E

Central processing unit (CPU)

49/180

7.2

Instruction set summary

The

Table 26 lists the instructions of the ST10F271. The detailed description of each

instruction can be found in the “ST10 Family Programming Manual”.

Table 26.

Standard instruction set summary

Mnemonic

Description

Bytes

ADD(B)

Add word (byte) operands

2 / 4

ADDC(B)

Add word (byte) operands with Carry

2 / 4

SUB(B)

Subtract word (byte) operands

2 / 4

SUBC(B)

Subtract word (byte) operands with Carry

2 / 4

MUL(U)

(Un)Signed multiply direct GPR by direct GPR (16-16-bit)

DIV(U)

(Un)Signed divide register MDL by direct GPR (16-/16-bit)

DIVL(U)

(Un)Signed long divide reg. MD by direct GPR (32-/16-bit)

CPL(B)

Complement direct word (byte) GPR

NEG(B)

Negate direct word (byte) GPR

AND(B)

Bit-wise AND, (word/byte operands)

2 / 4

OR(B)

Bit-wise OR, (word/byte operands)

2 / 4

XOR(B)

Bit-wise XOR, (word/byte operands)

2 / 4

BCLR

Clear direct bit

BSET

Set direct bit

BMOV(N)

Move (negated) direct bit to direct bit

BAND, BOR, BXOR

AND/OR/XOR direct bit with direct bit

BCMP

Compare direct bit to direct bit

BFLDH/L

Bit-wise modify masked high/low byte of bit-addressable direct word

memory with immediate data

CMP(B)

Compare word (byte) operands

2 / 4

CMPD1/2

Compare word data to GPR and decrement GPR by 1/2

2 / 4

CMPI1/2

Compare word data to GPR and increment GPR by 1/2

2 / 4

PRIOR

Determine number of shift cycles to normalize direct word GPR and

store result in direct word GPR

SHL / SHR

Shift left/right direct word GPR

ROL / ROR

Rotate left/right direct word GPR

ASHR

Arithmetic (sign bit) shift right direct word GPR

MOV(B)

Move word (byte) data

2 / 4

MOVBS

Move byte operand to word operand with sign extension

2 / 4

MOVBZ

Move byte operand to word operand with zero extension

2 / 4

JMPA, JMPI, JMPR

Jump absolute/indirect/relative if condition is met

JMPS

Jump absolute to a code segment

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