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Fix interpretation of range in disassemble command

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Mike Naberezny 2012-11-30 14:51:51 -08:00
parent 81906116f3
commit 321c9cfb36
3 changed files with 9 additions and 14 deletions
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3
CHANGES.txt
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@ -3,6 +3,9 @@
- Disassembling can now wrap around memory if the start address
given is greater than the end address.
- Fixed the disassembler to accept a range of "start:end" instead of
"start:end+1" for consistency with the other commands.
0.14 (2012-11-30)
- Assembling now detects syntax errors, overflows, and bad labels

16
py65/monitor.py
View File

@ -284,11 +284,9 @@ class Monitor(cmd.Cmd):
try:
start = self._address_parser.number(splitted[0])
bytes = self._assembler.assemble(statement, start)
end = start + len(bytes)
self._mpu.memory[start:end] = bytes
rangestr = (self.addrFmt + ":" + self.addrFmt) % (start, end)
self.do_disassemble(rangestr)
self.do_disassemble(self.addrFmt % start)
except KeyError:
self._output("Bad label: %s" % args)
except OverflowError:
@ -367,16 +365,10 @@ class Monitor(cmd.Cmd):
end = start
max_address = (2 ** self._mpu.ADDR_WIDTH) - 1
if start == end:
end += 1
if end > max_address:
end = 0
cur_address = start
needs_wrap = start > end
while needs_wrap or cur_address < end:
while needs_wrap or cur_address <= end:
length, disasm = self._disassembler.instruction_at(cur_address)
self._output(self._format_disassembly(cur_address, length, disasm))
@ -384,7 +376,7 @@ class Monitor(cmd.Cmd):
while remaining:
remaining -= 1
cur_address += 1
if cur_address > max_address:
if start > end and cur_address > max_address:
needs_wrap = False
cur_address = 0
@ -409,7 +401,7 @@ class Monitor(cmd.Cmd):
def help_disassemble(self):
self._output("disassemble <address_range>")
self._output("Disassemble instructions in the address range.")
self._output('Range is specified like "<start>:<end+1>".')
self._output('Range is specified like "<start>:<end>".')
def help_step(self):
self._output("step")

4
py65/tests/test_monitor.py
View File

@ -295,7 +295,7 @@ class MonitorTests(unittest.TestCase):
mon._mpu.memory[0xc000] = 0xEA # => NOP
mon._mpu.memory[0xc001] = 0xEA # => NOP
mon._mpu.step()
mon.do_disassemble("c000:c002")
mon.do_disassemble("c000:c001")
out = stdout.getvalue()
disasm = "$c000 ea NOP\n$c001 ea NOP\n"
@ -323,7 +323,7 @@ class MonitorTests(unittest.TestCase):
mon._mpu.memory[0x0003] = 0xE4
mon._mpu.memory[0x0004] = 0xFF # => $FFE4
mon._mpu.memory[0x0005] = 0xEA # => NOP
mon.do_disassemble("ffff:6")
mon.do_disassemble("ffff:5")
out = stdout.getvalue()
disasm = ("$ffff 20 d2 ff JSR $ffd2\n"
"$0002 20 e4 ff JSR $ffe4\n"