def _mulf16(ins):
''' Multiplies 2 32bit (16.16) fixed point numbers. The result is pushed onto the stack.
'''
op1, op2 = tuple(ins.quad[2:])
if _f_ops(op1, op2) is not None:
op1, op2 = _f_ops(op1, op2)
if op2 == 1: # A * 1 => A
output = _f16_oper(op1)
output.append('push de')
output.append('push hl')
return output
if op2 == -1:
return _neg32(ins)
output = _f16_oper(op1)
if op2 == 0:
output.append('ld hl, 0')
output.append('ld e, h')
output.append('ld d, l')
output.append('push de')
output.append('push hl')
return output
output = _f16_oper(op1, str(op2))
output.append('call __MULF16')
output.append('push de')
output.append('push hl')
REQUIRES.add('mulf16.asm')
return output
def _mulf16(ins):
''' Multiplies 2 32bit (16.16) fixed point numbers. The result is pushed onto the stack.
'''
op1, op2 = tuple(ins.quad[2:])
if _f_ops(op1, op2) is not None:
op1, op2 = _f_ops(op1, op2)
if op2 == 1: # A * 1 => A
output = _f16_oper(op1)
output.append('push de')
output.append('push hl')
return output
if op2 == -1:
return _neg32(ins)
output = _f16_oper(op1)
if op2 == 0:
output.append('ld hl, 0')
output.append('ld e, h')
output.append('ld d, l')
output.append('push de')
output.append('push hl')
return output
output = _f16_oper(op1, str(op2))
output.append('call __MULF16')
output.append('push de')
output.append('push hl')
REQUIRES.add('mulf16.asm')
return output
def _negf16(ins):
''' Negates (arithmetic) top of the stack (Fixed point in DE.HL)
Fixed point signed version
'''
return _neg32(_f16_to_32bit(ins))
def _negf16(ins):
''' Negates (arithmetic) top of the stack (Fixed point in DE.HL)
Fixed point signed version
'''
return _neg32(_f16_to_32bit(ins))
