sim.run()
def check_alu_outputs(self, alu, dec2, sim, code):
- sim_o = {}
- res = {}
-
- # check RT
- yield from ALUHelpers.get_sim_int_o(sim_o, sim, dec2)
- yield from ALUHelpers.get_int_o(res, alu, dec2)
- ALUHelpers.check_int_o(self, res, sim_o, code)
rc = yield dec2.e.rc.data
cridx_ok = yield dec2.e.write_cr.ok
if rc:
self.assertEqual(cridx, 0, code)
- yield from ALUHelpers.get_sim_cr_a(sim_o, sim, dec2)
- yield from ALUHelpers.get_cr_a(res, alu, dec2)
- ALUHelpers.check_cr_a(self, res, sim_o, "CR%d %s" % (cridx, code))
-
- cry_out = yield dec2.e.output_carry
- if cry_out:
- expected_carry = 1 if sim.spr['XER'][XER_bits['CA']] else 0
- real_carry = yield alu.n.data_o.xer_ca.data[0] # XXX CA not CA32
- self.assertEqual(expected_carry, real_carry, code)
- expected_carry32 = 1 if sim.spr['XER'][XER_bits['CA32']] else 0
- real_carry32 = yield alu.n.data_o.xer_ca.data[1] # XXX CA32
- self.assertEqual(expected_carry32, real_carry32, code)
-
oe = yield dec2.e.oe.oe
oe_ok = yield dec2.e.oe.ok
- if oe and oe_ok:
- expected_so = 1 if sim.spr['XER'][XER_bits['SO']] else 0
- real_so = yield alu.n.data_o.xer_so.data[0]
- self.assertEqual(expected_so, real_so, code)
- expected_ov = 1 if sim.spr['XER'][XER_bits['OV']] else 0
- real_ov = yield alu.n.data_o.xer_ov.data[0] # OV bit
- self.assertEqual(expected_ov, real_ov, code)
- expected_ov32 = 1 if sim.spr['XER'][XER_bits['OV32']] else 0
- real_ov32 = yield alu.n.data_o.xer_ov.data[1] # OV32 bit
- self.assertEqual(expected_ov32, real_ov32, code)
- print ("after: so/ov/32", real_so, real_ov, real_ov32)
- else:
+ if not oe or not oe_ok:
# if OE not enabled, XER SO and OV must correspondingly be false
so_ok = yield alu.n.data_o.xer_so.ok
ov_ok = yield alu.n.data_o.xer_ov.ok
self.assertEqual(so_ok, False, code)
self.assertEqual(ov_ok, False, code)
+ sim_o = {}
+ res = {}
+
+ yield from ALUHelpers.get_cr_a(res, alu, dec2)
+ yield from ALUHelpers.get_xer_ov(res, alu, dec2)
+ yield from ALUHelpers.get_xer_ca(res, alu, dec2)
+ yield from ALUHelpers.get_int_o(res, alu, dec2)
+ yield from ALUHelpers.get_xer_so(res, alu, dec2)
+
+ yield from ALUHelpers.get_sim_int_o(sim_o, sim, dec2)
+ yield from ALUHelpers.get_sim_cr_a(sim_o, sim, dec2)
+ yield from ALUHelpers.get_sim_xer_ov(sim_o, sim, dec2)
+ yield from ALUHelpers.get_sim_xer_ca(sim_o, sim, dec2)
+ yield from ALUHelpers.get_sim_xer_so(sim_o, sim, dec2)
+
+ ALUHelpers.check_cr_a(self, res, sim_o, "CR%d %s" % (cridx, code))
+ ALUHelpers.check_xer_ov(self, res, sim_o, code)
+ ALUHelpers.check_xer_ca(self, res, sim_o, code)
+ ALUHelpers.check_int_o(self, res, sim_o, code)
+ ALUHelpers.check_xer_so(self, res, sim_o, code)
if __name__ == "__main__":
+from soc.decoder.power_enums import XER_bits
+
+
class TestCase:
def __init__(self, program, name, regs=None, sprs=None, cr=0, mem=None,
msr=0):
if cridx_ok:
res['cr_a'] = yield alu.n.data_o.cr0.data
+ def get_xer_so(res, alu, dec2):
+ oe = yield dec2.e.oe.oe
+ oe_ok = yield dec2.e.oe.ok
+ if oe and oe_ok:
+ res['xer_so'] = yield alu.n.data_o.xer_so.data[0]
+
+ def get_xer_ov(res, alu, dec2):
+ oe = yield dec2.e.oe.oe
+ oe_ok = yield dec2.e.oe.ok
+ if oe and oe_ok:
+ res['xer_ov'] = yield alu.n.data_o.xer_ov.data
+
+ def get_xer_ca(res, alu, dec2):
+ cry_out = yield dec2.e.output_carry
+ if cry_out:
+ res['xer_ca'] = yield alu.n.data_o.xer_ca.data
+
def get_sim_int_o(res, sim, dec2):
out_reg_valid = yield dec2.e.write_reg.ok
if out_reg_valid:
cridx = yield dec2.e.write_cr.data
res['cr_a'] = sim.crl[cridx].get_range().value
+ def get_sim_xer_ca(res, sim, dec2):
+ cry_out = yield dec2.e.output_carry
+ if cry_out:
+ expected_carry = 1 if sim.spr['XER'][XER_bits['CA']] else 0
+ expected_carry32 = 1 if sim.spr['XER'][XER_bits['CA32']] else 0
+ res['xer_ca'] = expected_carry | (expected_carry32 << 1)
+
+ def get_sim_xer_ov(res, sim, dec2):
+ oe = yield dec2.e.oe.oe
+ oe_ok = yield dec2.e.oe.ok
+ if oe and oe_ok:
+ expected_ov = 1 if sim.spr['XER'][XER_bits['OV']] else 0
+ expected_ov32 = 1 if sim.spr['XER'][XER_bits['OV32']] else 0
+ res['xer_ov'] = expected_ov | (expected_ov32 << 1)
+
+ def get_sim_xer_so(res, sim, dec2):
+ oe = yield dec2.e.oe.oe
+ oe_ok = yield dec2.e.oe.ok
+ if oe and oe_ok:
+ res['xer_so'] = 1 if sim.spr['XER'][XER_bits['SO']] else 0
+
def check_int_o(dut, res, sim_o, msg):
if 'o' in res:
expected = sim_o['o']
print ("CR", cr_expected, cr_actual)
dut.assertEqual(cr_expected, cr_actual, msg)
+ def check_xer_ca(dut, res, sim_o, msg):
+ if 'xer_ca' in res:
+ ca_expected = sim_o['xer_ca']
+ ca_actual = res['xer_ca']
+ print ("CA", ca_expected, ca_actual)
+ dut.assertEqual(ca_expected, ca_actual, msg)
+
+ def check_xer_ov(dut, res, sim_o, msg):
+ if 'xer_ov' in res:
+ ov_expected = sim_o['xer_ov']
+ ov_actual = res['xer_ov']
+ print ("OV", ov_expected, ov_actual)
+ dut.assertEqual(ov_expected, ov_actual, msg)
+
+ def check_xer_so(dut, res, sim_o, msg):
+ if 'xer_so' in res:
+ so_expected = sim_o['xer_so']
+ so_actual = res['xer_so']
+ print ("SO", so_expected, so_actual)
+ dut.assertEqual(so_expected, so_actual, msg)
+