.global _start
.text
_start:
    # NOTE: nop required because cpu currently does not detect when something is needed from a later stage of the pipeline.
    # 4 clocks allows one instruction to finish before the next reads the regfile
    
    # AUIPC
    # JAL
    # JALR

    # SLLI
    # SRLI
    # SRAI
    # SLTI
    # SLTUI

    # SLL
    # SRL
    # SRA
    # SLT
    # SLTU

    # lui
    lui     x1, 0xfedcb         # x1 = 0xfedcb000
    nop
    nop
    nop

    # addi
    addi    x1, x1, 0x789       # x1 = 0xfedcb789
    addi    x2, x0, -1          # x2 = 0xffffffff
    nop
    nop
    addi    x3, x1, -0x777      # x3 = 0xfedcb012
    nop
    nop
    nop

    # add
    add     x4, x1, x2          # x4 = 0xfedcb788
    nop
    nop
    nop

    # sub
    sub     x5, x1, x3          # x5 = 0x00000777
    nop
    nop
    nop
    
    # and
    and     x6, x1, x2          # x6 = 0xfedcb789
    and     x7, x1, x0          # x7 = 0x00000000
    and     x8, x4, x3          # x8 = 0xfedcb000
    nop
    nop
    nop

    # or
    or      x9, x1, x2          # x9 = 0xffffffff
    or      x10, x1, x0         # x10 = 0xfedcb789
    or      x11, x4, x3         # x11 = 0x0xfedcb79a
    nop
    nop
    nop

    # xor
    xor     x12, x1, x2         # x12 = 0x01234876
    xor     x13, x1, x1         # x13 = 0x00000000
    xor     x14, x0, x2         # x14 = 0xffffffff
    nop
    nop
    nop

    # andi
    andi    x15, x2, -1348      # x15 = 0xfffffabc      -1348 = 0xfffffabc
    andi    x16, x2, 0x123      # x16 = 0x00000123
    andi    x17, x1, -1645      # x17 = 0xfedcb181      -1645 = 0xfffff993
    nop
    nop
    nop

    # ori
    ori     x18, x2, 0x000      # x18 = 0xffffffff
    ori     x19, x0, 0x768      # x19 = 0x768
    ori     x20, x1, 0x7ff      # x20 = 0xfedcb7ff
    nop
    nop
    nop

    # xori
    xori    x21, x2, 0x123      # x21 = 0xfffffedc
    xori    x22, x1, 0x788      # x22 = 0xfedcb001
    xori    x23, x0, 0x788      # x23 = 0x00000788
    nop
    nop
    nop


    # counter and infinite loop
    nop
    nop
    nop
    addi     x31, x0, 1          # x1 = 1

loop:
    nop
    nop
    nop
    addi     x31, x31, 1          # increment x1
    nop
    nop
    nop
    j       loop                # loop forever
    nop
    nop
    nop
    nop
    nop
    nop

.data