Chapter 4. API Guides
1: OR R1, R2, R3 //R1 = R2 \| R3
2: OR R1, R2, 0x1234 //R1 = R2 \| 0x1234
3: .set value1, 0x03 //constant value1=0x03
OR R1, R2, value1 //R1 = R2 \| value1
4: .global label //declaration of variable label
OR R1, R2, label //R1 = R2 \|label
...
label: nop //definition of variable label
LSH - Logical Shift Left
Syntax LSH Rdst, Rsrc1, Rsrc2
LSH Rdst, Rsrc1, imm
Operands
• Rdst - Register R[0..3]
• Rsrc1 - Register R[0..3]
• Rsrc2 - Register R[0..3]
• Imm - 16-bit signed value
Cycles 2 cycles to execute, 4 cycles to fetch next instruction
Description The instruction does logical shift to left of source register to number of bits from another source register
or 16-bit signed value and store result to the destination register.
Examples:
1: LSH R1, R2, R3 //R1 = R2 << R3
2: LSH R1, R2, 0x03 //R1 = R2 << 0x03
3: .set value1, 0x03 //constant value1=0x03
LSH R1, R2, value1 //R1 = R2 << value1
4: .global label //declaration of variable label
LSH R1, R2, label //R1 = R2 << label
...
label: nop //definition of variable label
RSH - Logical Shift Right
Syntax RSH Rdst, Rsrc1, Rsrc2
RSH Rdst, Rsrc1, imm
Operands Rdst - Register R[0..3] Rsrc1 - Register R[0..3] Rsrc2 - Register R[0..3] Imm - 16-bit signed value
Cycles 2 cycles to execute, 4 cycles to fetch next instruction
Description The instruction does logical shift to right of source register to number of bits from another source
register or 16-bit signed value and store result to the destination register.
Examples:
1: RSH R1, R2, R3 //R1 = R2 >> R3
2: RSH R1, R2, 0x03 //R1 = R2 >> 0x03
3: .set value1, 0x03 //constant value1=0x03
RSH R1, R2, value1 //R1 = R2 >> value1
4: .global label //declaration of variable label
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Espressif Systems 1480
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