def test_DIV():
program = '''
.text
.global main:
main:
LDV A, 30
LDV B, 10
DIV A, B
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 3
assert c.registers.get(1) == 10
# Check that flooring works properly
program = '''
.text
.global main:
main:
LDV A, 38
LDV B, 10
DIV A, B
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 3
assert c.registers.get(1) == 10
def test_LDV16():
program = '''
.text
.global main:
main:
LDV16 A, {value}
HLT
'''
for i in [0, 0xFF, 0xEFF, 0xFFFF]:
c = execute_code(program.format(value=i))
assert c.registers.get(0) == i
def test_RSH():
program = '''
.text
.global main:
main:
LDV A, 30
RSH A, 3
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 30 >> 3
def test_NOT():
program = '''
.text
.global main:
main:
LDV A, 30
NOT A
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 0xFFFF - 30
def test_SWP():
program = '''
.text
.global main:
main:
LDV A, 123
LDV B, 321
SWP A, B
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 321
assert c.registers.get(1) == 123
def test_JLE():
program = '''
.text
.global main:
main:
LDV A, 123
LDV B, {value}
LDV C, positive:
LDV D, 80
JLE B, C
LDV C, 321
HLT
positive:
LDV C, 789
HLT
'''
c = execute_code(program.format(value=123))
assert c.registers._gp == [123, 123, 789, 80]
c = execute_code(program.format(value=456))
assert c.registers._gp == [123, 456, 789, 80]
c = execute_code(program.format(value=12))
assert c.registers._gp == [123, 12, 321, 80]
def test_MUL():
program = '''
.text
.global main:
main:
LDV A, 30
LDV B, 10
MUL A, B
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 300
assert c.registers.get(1) == 10
def test_DEC():
program = '''
.text
.global main:
main:
LDV A, 30
DEC A
DEC A
DEC B
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 28
assert c.registers.get(1) == 0xFFFF
def test_INC():
program = '''
.text
.global main:
main:
LDV A, 30
INC A
INC A
INC B
HLT
'''
c = execute_code(program)
assert c.registers.get(0) == 32
assert c.registers.get(1) == 1
def test_JGE():
program = '''
.text
.global main:
main:
LDV A, 456
LDV B, 123
LDV C, positive:
JGE B, C
HLT
positive:
LDV C, 789
HLT
'''
c = execute_code(program)
for reg, val in enumerate([456, 123, 789, 0]):
assert c.registers.get(reg) == val