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# Copyright (c) 2023 Peter McGoron <code@mcgoron.com>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
from creole import *
import unittest
import ffi
class PushTest(unittest.TestCase):
def test_parse_push_reg(self):
p = Program()
p.parse_asm_line("push r5")
b = p()
self.assertEqual(b, b'\x01\xC2\x85\x00')
ins = ffi.parse_line(b)
self.assertEqual(ins[0], Instruction.PUSH.opcode)
self.assertEqual(ins[1][0], (1,5))
def test_parse_push_imm(self):
p = Program()
p.parse_asm_line("push 5")
b = p()
self.assertEqual(b, b'\x01\xC0\x85\x00')
ins = ffi.parse_line(b)
self.assertEqual(ins[0], Instruction.PUSH.opcode)
self.assertEqual(ins[1][0], (0,5))
def test_parse_push_catch_typecheck_push_lab(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("push l0")
self.assertEqual(cm.exception.argtype, ArgType.VAL)
self.assertEqual(cm.exception.sarg, 'l0')
self.assertEqual(cm.exception.i, 0)
self.assertEqual(cm.exception.opcode, 1)
def test_parse_push_catch_typecheck_argument_overflow(self):
p = Program()
with self.assertRaises(TypecheckLenException) as cm:
p.parse_asm_line("push r1 r2")
self.assertEqual(cm.exception.opcode, 1)
self.assertEqual(cm.exception.insargs, ["r1", "r2"])
self.assertEqual(cm.exception.argtypelen, 1)
def test_parse_push_catch_typecheck_argument_underflow(self):
p = Program()
with self.assertRaises(TypecheckLenException) as cm:
p.parse_asm_line("push")
self.assertEqual(cm.exception.opcode, 1)
self.assertEqual(cm.exception.insargs, [])
self.assertEqual(cm.exception.argtypelen, 1)
def test_large_reg(self):
p = Program(reglen=0x8000000)
p.parse_asm_line("PUSH r134217727")
b = p()
self.assertEqual(b, b'\x01\xFC\x8f\xbf\xbf\xbf\xbf\x00')
def test_compile_push(self):
p = Program()
p.parse_asm_line("PUSH r0")
p.parse_asm_line("PUSH 6")
ex = ffi.Environment(p())
self.assertEqual(ex.cenv.prgend, 2)
self.assertEqual(ex.cenv.prg[0].opcode, 1)
self.assertEqual(ex.cenv.prg[0].w_flags[0], 1)
self.assertEqual(ex.cenv.prg[0].w_flags[1], 0)
self.assertEqual(ex.cenv.prg[0].w_flags[2], 0)
self.assertEqual(ex.cenv.prg[0].w[0], 0)
self.assertEqual(ex.cenv.prg[0].w[1], 0)
self.assertEqual(ex.cenv.prg[0].w[2], 0)
self.assertEqual(ex.cenv.prg[1].opcode, 1)
self.assertEqual(ex.cenv.prg[1].w_flags[0], 0)
self.assertEqual(ex.cenv.prg[1].w_flags[1], 0)
self.assertEqual(ex.cenv.prg[1].w_flags[2], 0)
self.assertEqual(ex.cenv.prg[1].w[0], 6)
self.assertEqual(ex.cenv.prg[1].w[1], 0)
self.assertEqual(ex.cenv.prg[1].w[2], 0)
def test_push_many(self):
p = Program()
stklen = 40
for n in range(0,stklen):
p.parse_asm_line("PUSH 5")
ex = ffi.Environment(p(), stklen=stklen)
self.assertEqual(ex(), ffi.RunRet.STOP)
for n in range(0,stklen):
self.assertEqual(ex.getstk(n), 5)
def test_push_overflow(self):
p = Program()
stklen = 40
for n in range(0, stklen + 1):
p.parse_asm_line("PUSH 5")
ex = ffi.Environment(p(), stklen=stklen)
self.assertEqual(ex(), ffi.RunRet.STACK_OVERFLOW)
class PopTest(unittest.TestCase):
def test_compile_pop_reg(self):
p = Program()
p.parse_asm_line("pop r9")
b = p()
self.assertEqual(b, b'\x02\xC2\x89\x00')
ex = ffi.Environment(b)
self.assertEqual(ex.cenv.prgend, 1)
self.assertEqual(ex.cenv.prg[0].opcode, 2)
self.assertEqual(ex.cenv.prg[0].w_flags[0], 1)
self.assertEqual(ex.cenv.prg[0].w_flags[1], 0)
self.assertEqual(ex.cenv.prg[0].w_flags[2], 0)
self.assertEqual(ex.cenv.prg[0].w[0], 9)
self.assertEqual(ex.cenv.prg[0].w[1], 0)
self.assertEqual(ex.cenv.prg[0].w[2], 0)
def test_compile_throw_pop_literal(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("pop 6")
self.assertEqual(cm.exception.argtype, ArgType.REG)
self.assertEqual(cm.exception.sarg, '6')
self.assertEqual(cm.exception.i, 0)
self.assertEqual(cm.exception.opcode, 2)
def test_compile_throw_pop_label(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("pop l9")
self.assertEqual(cm.exception.argtype, ArgType.REG)
self.assertEqual(cm.exception.sarg, 'l9')
self.assertEqual(cm.exception.i, 0)
self.assertEqual(cm.exception.opcode, 2)
def test_compile_throw_argument_overflow(self):
p = Program()
with self.assertRaises(TypecheckLenException) as cm:
p.parse_asm_line("pop r1 r2")
self.assertEqual(cm.exception.opcode, 2)
self.assertEqual(cm.exception.insargs, ["r1", "r2"])
self.assertEqual(cm.exception.argtypelen, 1)
def test_catch_typecheck_argument_underflow(self):
p = Program()
with self.assertRaises(TypecheckLenException) as cm:
p.parse_asm_line("pop")
self.assertEqual(cm.exception.opcode, 2)
self.assertEqual(cm.exception.insargs, [])
def test_pop_underflow(self):
p = Program()
p.parse_asm_line("pop r0")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STACK_UNDERFLOW)
def test_pop_underflow_2(self):
p = Program()
p.parse_asm_line("push 5")
p.parse_asm_line("pop r0")
p.parse_asm_line("pop r1")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STACK_UNDERFLOW)
class AddTest(unittest.TestCase):
def test_exec_add(self):
p = Program()
p.parse_asm_line("add r0 1 1")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.cenv.reg[0], 2)
def test_exec_add_neg(self):
p = Program()
p.parse_asm_line("add r0 10 20")
p.parse_asm_line("add r1 5 0")
p.parse_asm_line("add r1 r0 -40")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0), 30)
self.assertEqual(ex.getreg(1, signed=True), -10)
def test_exec_add_throw_imm(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("add 5 6 7")
self.assertEqual(cm.exception.argtype, ArgType.REG)
self.assertEqual(cm.exception.sarg, '5')
self.assertEqual(cm.exception.i, 0)
self.assertEqual(cm.exception.opcode, 3)
def test_exec_add_throw_lab_1(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("add r0 l6 7")
self.assertEqual(cm.exception.argtype, ArgType.VAL)
self.assertEqual(cm.exception.sarg, 'l6')
self.assertEqual(cm.exception.i, 1)
self.assertEqual(cm.exception.opcode, 3)
def test_exec_add_throw_lab_2(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("add r0 12 l24")
self.assertEqual(cm.exception.argtype, ArgType.VAL)
self.assertEqual(cm.exception.sarg, 'l24')
self.assertEqual(cm.exception.i, 2)
self.assertEqual(cm.exception.opcode, 3)
class MulTest(unittest.TestCase):
def test_exec_mul_imm_imm(self):
p = Program()
p.parse_asm_line("mul r0 2 2")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0), 4)
def test_exec_mul_imm_neg_imm(self):
p = Program()
p.parse_asm_line("mul r0 -5 5")
p.parse_asm_line("mul r1 r0 -5")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0, signed=True), -25)
self.assertEqual(ex.getreg(1), 125)
def test_exec_mul_throw_imm(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("mul 942 6 7")
self.assertEqual(cm.exception.argtype, ArgType.REG)
self.assertEqual(cm.exception.sarg, '942')
self.assertEqual(cm.exception.i, 0)
self.assertEqual(cm.exception.opcode, 4)
def test_exec_mul_throw_lab_1(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("mul r9 l2 1991")
self.assertEqual(cm.exception.argtype, ArgType.VAL)
self.assertEqual(cm.exception.sarg, 'l2')
self.assertEqual(cm.exception.i, 1)
self.assertEqual(cm.exception.opcode, 4)
def test_exec_mul_throw_lab_2(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("mul r0 -11 l48")
self.assertEqual(cm.exception.argtype, ArgType.VAL)
self.assertEqual(cm.exception.sarg, 'l48')
self.assertEqual(cm.exception.i, 2)
self.assertEqual(cm.exception.opcode, 4)
class DivTest(unittest.TestCase):
def test_div(self):
p = Program()
p.parse_asm_line("div r0 8 4")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0), 2)
def test_div_round_down(self):
p = Program()
p.parse_asm_line("div r0 8 10")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
def test_div_by_zero(self):
p = Program()
p.parse_asm_line("div r0 8 0")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.DIVIDE_BY_ZERO)
def test_sdiv_by_zero(self):
p = Program()
p.parse_asm_line("sdiv r0 8 0")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.DIVIDE_BY_ZERO)
def test_sdiv_neg(self):
p = Program()
p.parse_asm_line("sdiv r0 16 -4")
p.parse_asm_line("sdiv r1 r0 -4")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0, signed=True), -4)
self.assertEqual(ex.getreg(1), 1)
def test_exec_div_throw_imm(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("div 5 1 2")
self.assertEqual(cm.exception.argtype, ArgType.REG)
self.assertEqual(cm.exception.sarg, '5')
self.assertEqual(cm.exception.i, 0)
self.assertEqual(cm.exception.opcode, 5)
def test_exec_div_throw_lab_1(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("div r0 l123 456")
self.assertEqual(cm.exception.argtype, ArgType.VAL)
self.assertEqual(cm.exception.sarg, 'l123')
self.assertEqual(cm.exception.i, 1)
self.assertEqual(cm.exception.opcode, 5)
def test_exec_div_throw_lab_2(self):
p = Program()
with self.assertRaises(TypecheckException) as cm:
p.parse_asm_line("div r5 1919 l24")
self.assertEqual(cm.exception.argtype, ArgType.VAL)
self.assertEqual(cm.exception.sarg, 'l24')
self.assertEqual(cm.exception.i, 2)
self.assertEqual(cm.exception.opcode, 5)
class LabelTest(unittest.TestCase):
def test_unconditional_jump(self):
p = Program()
p.parse_lines([
"mov r0 5",
"mov r0 6",
"j l0",
"mov r0 7",
"CLB l0",
])
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0), 6)
def test_simple_loop(self):
p = Program()
p.parse_lines([
"add r0 10 0",
"add r1 20 0",
"CLB l0",
"add r0 r0 -1",
"add r1 r1 1",
"jl l0 0 r0"
])
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0), 0)
self.assertEqual(ex.getreg(1), 30)
def test_signed_jmp(self):
p = Program()
p.parse_lines([
"mov r0 30",
"mov r1 0",
"CLB l0",
"add r0 r0 -1",
"add r1 r1 1",
"jls l0 -30 r0"
])
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0, signed=True), -30)
self.assertEqual(ex.getreg(1), 60)
def test_jeq(self):
p = Program()
p.parse_lines([
"mov r0 50",
"mov r1 0",
"CLB l0",
"add r1 r1 1",
"mul r2 r0 -1",
"add r2 r2 r1",
"jne l0 r2 0"
])
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0, signed=True), 50)
self.assertEqual(ex.getreg(1), 50)
self.assertEqual(ex.getreg(2), 0)
def test_nested_loop(self):
p = Program()
p.parse_lines([
"mov r0 0", # outer loop counter
"mov r2 0", # total iteration counter
"CLB l0",
"mov r1 0", # inner loop counter
"CLB l1",
"add r1 r1 1",
"add r2 r2 1",
"jl l1 r1 50",
"add r0 r0 1",
"jl l0 r0 50"
])
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0), 50)
self.assertEqual(ex.getreg(1), 50)
self.assertEqual(ex.getreg(2), 50*50)
class ProgramTest(unittest.TestCase):
def test_exec_simple_reg(self):
p = Program()
p.parse_asm_line("push 5")
p.parse_asm_line("push 6")
p.parse_asm_line("pop r0")
p.parse_asm_line("pop r1")
ex = ffi.Environment()
self.assertEqual(ex.load(p()), ffi.CompileRet.OK)
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0), 6)
self.assertEqual(ex.getreg(1), 5)
def range_test(self, st, en, sgn=False):
for i in range(st, en):
p = Program()
p.parse_asm_line(f"mov r0 {i}")
ex = ffi.Environment(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.getreg(0, signed=sgn), i)
@unittest.skip("slow")
def test_parse_imm_compile(self):
self.range_test(0, 0x1000)
self.range_test(0x1000, 0x1100)
self.range_test(0x1FF00, 0x20000)
self.range_test(0x20000, 0x20100)
self.range_test(0x3FFF00, 0x400000)
self.range_test(0x400000, 0x400100)
self.range_test(0x7FFFF00, 0x8000000)
self.range_test(0x8000000, 0x8000100)
self.range_test(0xFFFFFF00, 0x100000000)
@unittest.skip("slow")
def test_parse_imm_signed(self):
self.range_test(0, 0x1000, sgn=True)
self.range_test(0x1000, 0x1100, sgn=True)
self.range_test(0x1FF00, 0x20000, sgn=True)
self.range_test(0x20000, 0x20100, sgn=True)
self.range_test(0x3FFF00, 0x400000, sgn=True)
self.range_test(0x400000, 0x400100, sgn=True)
self.range_test(0x7FFFF00, 0x8000000, sgn=True)
self.range_test(-100, 0, sgn=True)
class SCEnv(ffi.Environment):
def syscall(self, s):
self.s = s.value
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
class ProgramTest(unittest.TestCase):
def range_test(self, st, en, sgn=False):
for i in range(st, en):
p = Program()
p.parse_asm_line(f"sys {i}")
ex = SCEnv(p())
self.assertEqual(ex(), ffi.RunRet.STOP)
self.assertEqual(ex.s, i)
def test_syscall_imm(self):
self.range_test(0, 1000)
if __name__ == "__main__":
unittest.main()
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