Espressif ESP32-S2 Programming Manual page 1490

Chapter 4. API Guides
Description The instruction subtracts the source register from another source register or subtracts 16-bit signed
value from a source register, and stores result to the destination register.
Examples:
1: SUB R1, R2, R3
2: sub R1, R2,
3: .set value1,
SUB R1, R2, value1
4: .global label
SUB R1, R2, label
....
label: nop
AND - Logical AND of two operands
Syntax AND Rdst, Rsrc1, Rsrc2
AND 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 AND of a source register and another source register or 16-bit signed value
and stores result to the destination register.
Examples:
1: AND R1, R2, R3
2: AND R1, R2,
3: .set value1,
AND R1, R2, value1
4: .global label
AND R1, R2, label
...
label: nop
OR - Logical OR of two operands
Syntax OR Rdst, Rsrc1, Rsrc2
OR 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 OR of a source register and another source register or 16-bit signed value
and stores result to the destination register.
Examples:
Espressif Systems
//R1
0x1234 //R1
0x03 //constant
//R1
//declaration of variable label
//R1
//definition of variable label
//R1 = R2
0x1234 //R1 = R2
0x03 //constant
//R1 = R2
//declaration of variable label
//R1 = R2
//definition of variable label
1479
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= R2 - R3
= R2 - 0x1234
value1=0x03
= R2 - value1
= R2 - label
& R3
& 0x1234
value1=0x03
& value1
& label
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