def test_sub16_neg_imm():
state = new_state(rf2=0, rf1=0)
bits = opcode_factory.sub16_immediate(rd=2, rn=1, imm=0b111)
name, executefn = decode(bits)
instr = Instruction(bits, '')
assert instr.rd == 2
assert instr.rn == 1
assert instr.imm3 == 0b111
executefn(state, instr)
expected_state = StateChecker(rf2=1, rf1=0)
expected_state.check(state)
import pytest
@pytest.mark.parametrize('name,instr',
[('add32', opcode_factory.add32(rd=0, rn=0, rm=0)),
('add16', opcode_factory.add16(rd=0, rn=0, rm=0)),
('add32', opcode_factory.add32(rd=1, rn=1, rm=1)),
('add16', opcode_factory.add16(rd=1, rn=1, rm=1)),
('sub32', opcode_factory.sub32(rd=0, rn=0, rm=0)),
('sub16', opcode_factory.sub16(rd=0, rn=0, rm=0)),
('sub32', opcode_factory.sub32(rd=1, rn=1, rm=1)),
('sub16', opcode_factory.sub16(rd=1, rn=1, rm=1)),
('add32', opcode_factory.add32_immediate(rd=1, rn=0, imm=0b01010101010)),
('add16', opcode_factory.add16_immediate(rd=1, rn=0, imm=0b0101)),
('sub32', opcode_factory.sub32_immediate(rd=1, rn=0, imm=0b01010101010)),
('sub16', opcode_factory.sub16_immediate(rd=1, rn=0, imm=0b0101)),
('and32', opcode_factory.and32(rd=1, rn=1, rm=1)),
('and16', opcode_factory.and16(rd=1, rn=1, rm=1)),
('orr32', opcode_factory.orr32(rd=1, rn=1, rm=1)),
('orr16', opcode_factory.orr16(rd=1, rn=1, rm=1)),
('eor32', opcode_factory.eor32(rd=1, rn=1, rm=1)),
('eor16', opcode_factory.eor16(rd=1, rn=1, rm=1)),
('asr32', opcode_factory.asr32(rd=1, rn=1, rm=1)),
('asr16', opcode_factory.asr16(rd=1, rn=1, rm=1)),
('lsr32', opcode_factory.lsr32(rd=1, rn=1, rm=1)),
('lsr16', opcode_factory.lsr16(rd=1, rn=1, rm=1)),
('lsl32', opcode_factory.lsl32(rd=1, rn=1, rm=1)),
('lsl16', opcode_factory.lsl16(rd=1, rn=1, rm=1)),
('lsrimm16', opcode_factory.lsr16_immediate(rd=1, rn=1, imm=1)),
('lslimm16', opcode_factory.lsl16_immediate(rd=1, rn=1, imm=1)),
('asrimm16', opcode_factory.asr16_immediate(rd=1, rn=1, imm=1)),
