I Extension

55 instructions and 24 pseudo-instructions in the I extension.

• add - Integer add
• addi - Add immediate
• addiw - Add immediate word
• addw - Add word
• and - And
• andi - And immediate
• auipc - Add upper immediate to pc
• beq - Branch if equal
• beqz - Pseudo-Instruction (→ beq)
• bge - Branch if greater than or equal
• bgeu - Branch if greater than or equal unsigned
• bgez - Pseudo-Instruction (→ bge)
• bgt - Pseudo-Instruction (→ blt)
• bgtu - Pseudo-Instruction (→ bltu)
• bgtz - Pseudo-Instruction (→ blt)
• ble - Pseudo-Instruction (→ bge)
• bleu - Pseudo-Instruction (→ bgeu)
• blez - Pseudo-Instruction (→ bge)
• blt - Branch if less than
• bltu - Branch if less than unsigned
• bltz - Pseudo-Instruction (→ blt)
• bne - Branch if not equal
• bnez - Pseudo-Instruction (→ bne)
• ebreak - Breakpoint exception
• ecall - Environment call
• fence - Memory ordering fence
• fence.tso - Memory ordering fence, total store ordering
• j - Pseudo-Instruction (→ jal)
• jal - Jump and link
• jalr - Jump and link register
• jr - Pseudo-Instruction (→ jalr)
• lb - Load byte
• lbu - Load byte unsigned
• ld - Load doubleword
• lh - Load halfword
• lhu - Load halfword unsigned
• lui - Load upper immediate
• lw - Load word
• lwu - Load word unsigned
• mret - Machine-mode Return from Trap
• mv - Pseudo-Instruction (→ addi)
• neg - Pseudo-Instruction (→ sub)
• negw - Pseudo-Instruction (→ subw)
• nop - Pseudo-Instruction (→ addi)
• not - Pseudo-Instruction (→ xori)
• or - Or
• ori - Or immediate
• ret - Pseudo-Instruction (→ jalr)
• sb - Store byte
• sd - Store doubleword
• seqz - Pseudo-Instruction (→ sltiu)
• sext.w - Pseudo-Instruction (→ addiw)
• sgtz - Pseudo-Instruction (→ slt)
• sh - Store halfword
• sll - Shift left logical
• slli - Shift left logical immediate
• slliw - Shift left logical immediate word
• sllw - Shift left logical word
• slt - Set on less than
• slti - Set on less than immediate
• sltiu - Set on less than immediate unsigned
• sltu - Set on less than unsigned
• sltz - Pseudo-Instruction (→ slt)
• snez - Pseudo-Instruction (→ sltu)
• sra - Shift right arithmetic
• srai - Shift right arithmetic immediate
• sraiw - Shift right arithmetic immediate word
• sraw - Shift right arithmetic word
• srl - Shift right logical
• srli - Shift right logical immediate
• srliw - Shift right logical immediate word
• srlw - Shift right logical word
• sub - Subtract
• subw - Subtract word
• sw - Store word
• wfi - Wait for interrupt
• xor - Exclusive Or
• xori - Exclusive Or immediate
• zext.b - Pseudo-Instruction (→ andi)