def jalr(rd, rs, imm):
rd = check_and_trans_reg(rd)
rs = check_and_trans_reg(rs)
v = check_and_trans_imm(imm, 12)
return pack([
(0b1100111, 7),
(rd, 5),
(0, 3),
(rs, 5),
(v, 12),
])
def alui(rd, funct3, rs1, imm):
imm = check_and_trans_imm(imm, 12)
rd = check_and_trans_reg(rd)
rs1 = check_and_trans_reg(rs1)
return pack([
(0b0010011, 7),
(rd, 5),
(funct3, 3),
(rs1, 5),
(imm, 12)
])
def flw(rd, rs1, imm):
imm = check_and_trans_imm(imm, 12)
rd = check_and_trans_reg(rd)
rs1 = check_and_trans_reg(rs1)
return pack([
(0b0000111, 7),
(rd, 5),
(0b010, 3),
(rs1, 5),
(imm, 12)
])
def shift(rd, funct3, rs1, imm1, imm2):
imm1 = check_and_trans_imm(imm1, 7)
rd = check_and_trans_reg(rd)
rs1 = check_and_trans_reg(rs1)
return pack([
(0b0010011, 7),
(rd, 5),
(funct3, 3),
(rs1, 5),
(imm1, 5),
(imm2, 7)
])
def falu(rd, rm, rs1, rs2, funct7):
rd = check_and_trans_reg(rd)
rs1 = check_and_trans_reg(rs1)
rs2 = check_and_trans_reg(rs2)
l = [
(0b1010011, 7),
(rd, 5),
(rm, 3),
(rs1, 5),
(rs2, 5),
(funct7, 7)
]
return pack(l)
def branch(imm, funct3, rs1, rs2):
imm = check_and_trans_imm(imm, 12)
rs1 = check_and_trans_reg(rs1)
rs2 = check_and_trans_reg(rs2)
val = ((imm & 0b1111) << 1) | ((imm >> 10) & 1)
val2 = ((imm >> 4) & 0b111111) | (((imm >> 11) & 1) << 6)
return pack([
(0b1100011, 7),
(val, 5),
(funct3, 3),
(rs1, 5),
(rs2, 5),
(val2, 7)
])
def fsw(rs1, rs2, imm):
imm = check_and_trans_imm(imm, 12)
rs1 = check_and_trans_reg(rs1)
rs2 = check_and_trans_reg(rs2)
val = (imm & 0b11111)
val2 = (imm >> 5)
return pack([
(0b0100111, 7),
(val, 5),
(0b010, 3),
(rs2, 5),
(rs1, 5),
(val2, 7),
])
def lui(rd, imm):
rd = check_and_trans_reg(rd)
imm = check_and_trans_imm(imm, 20)
return pack([
(0b0110111, 7),
(rd, 5),
(imm, 20)
])
def auipc(rd, imm):
rd = check_and_trans_reg(rd)
v = check_and_trans_imm(imm, 20)
return pack([
(0b0010111, 7),
(rd, 5),
(v, 20)
])
def jal(rd, imm):
rd = check_and_trans_reg(rd)
imm = check_and_trans_imm(imm, 20)
# check_alignment(imm, 2)
return pack([
(0b1101111, 7),
(rd, 5),
(bit_reorder(imm, [19, *range(9, -1, -1), 10, *range(18, 10, -1)]), 20)
])
def and_(rd, rs1, rs2):
rd = check_and_trans_reg(rd)
rs1 = check_and_trans_reg(rs1)
rs2 = check_and_trans_reg(rs2)
return pack_alu(0b0110011, rd, 0b111, rs1, rs2, 0b0000000)
