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mfpd test

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This commit is contained in:
Neil Webber 2023-09-09 07:42:50 -05:00
parent 6dd034946d
commit d5af85f09d
1 changed files with 39 additions and 3 deletions
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42
pdptests.py
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@ -42,10 +42,10 @@ class TestMethods(unittest.TestCase):
# There's no rhyme or reason in picking the approach for a given test.
# used to create various instances, collects all the options
# detail into this one place...
# detail into this one place... mostly this is about loglevel
@classmethod
def make_pdp(cls):
return PDP1170(console=False, loglevel=cls.PDPLOGLEVEL)
return PDP1170(loglevel=cls.PDPLOGLEVEL)
@staticmethod
def ioaddr(p, offs):
@ -84,6 +84,8 @@ class TestMethods(unittest.TestCase):
ns.UISA0 = ns.UDSD0 + 0o20
ns.UDSA0 = ns.UISA0 + 0o20
ns.MMR0 = cls.ioaddr(p, p.mmu.MMR0_OFFS)
return ns
#
@ -107,7 +109,7 @@ class TestMethods(unittest.TestCase):
# Puts 0o33333 into physical location 0o20002
# Puts 0o44444 into physical location 0o40000
# Sets Kernel Instruction space A0 to point to physical 0
# Sets Kernel Data space A0 to point to the first 8K physical memory
# Sets Kernel Data space A0 to point to physical 0
# Sets Kernel Data space A7 to point to the IO page
# Sets User Instruction space A0 to point to physical 0o20000
# sets User Data space D0 to point to physical 0o40000
@ -180,6 +182,40 @@ class TestMethods(unittest.TestCase):
for rN, v in enumerate(rslts):
self.assertEqual(p.r[rN], v)
def test_mfpxsp(self):
cn = self.usefulconstants()
insts = (
# gotta turn mapping back off for these...
0o005037, cn.MMR0, # CLR MMR0
0o012737, 0o14000, 0o34, # mov $14000,*#34
0o005037, 0o36, # clear *#36 .. perfectly fine PSW
0o012700, 0o20000, # mov #20000,r0
0o012720, 0o010206, # put into user 0: mov r2,r6
0o012720, 0o104400, # put into user 2: trap 0
0o012702, 0o123456, # put 123456 into R2
0o012746, 0o140340, # push user-ish PSW onto kernel stack
0o005046, # new user PC == 0
0o005237, cn.MMR0, # back on with the mapping!
0o000006, # RTT -- goes to user mode, addr 0
)
p, pc = self.simplemapped_pdp(addons=insts)
# put the trap handler at 14000 as expected
traph = (
0o106506, # mfpd sp
0o012603, # pop stack into r3
0
)
self.loadphysmem(p, traph, 0o14000)
p.instlog = True
p.run(pc=pc)
self.assertEqual(p.r[2], p.r[3])
def test_mtpi(self):
# need an instance just for the constants, meh
px = self.make_pdp()