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fix: improve address format

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This commit is contained in:
shokre 2023-10-21 05:09:36 +02:00
parent 8599f2966f
commit 04a34eaf44
1 changed files with 6 additions and 1 deletions
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7
orao/cpu.py
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@ -64,12 +64,13 @@ class CPU(object):
s.zy: lambda addr: "$%02X,y" % s.memory[addr],
s.ab: lambda addr: "$%04X" % (256 * s.memory[addr + 1] + s.memory[addr]),
s.ax: lambda addr: "$%04X,x" % (256 * s.memory[addr + 1] + s.memory[addr]),
s.ay: lambda addr: "$%04X,y" % (256 * s.memory[addr + 1] + s.memory[addr]),
s.no: lambda addr: "",
s.jm: lambda addr: "$%04X" % (256 * s.memory[addr + 1] + s.memory[addr]),
s.id: lambda addr: "($%04X)" % (256 * s.memory[addr + 1] + s.memory[addr]),
s.ix: lambda addr: "($%02X,x)" % s.memory[addr],
s.iy: lambda addr: "($%02X),y" % s.memory[addr],
s.re: lambda addr: "$%04X" % (addr + s.memory[addr] + 1),
s.re: lambda addr: "$%04X" % (addr + self.byte2signed(s.memory[addr]) + 1),
}
def get_flag(self, flag): return self.flags & flag != 0
@ -164,6 +165,10 @@ class CPU(object):
loc = self.zp()
addr = loc - 256 * (loc > 127) if loc & self.NEGATIVE else loc
return (self.pc + addr) & 0xFFFF
def byte2signed(self, loc):
return loc - 256 * (loc > 127) if loc & self.NEGATIVE else loc
###########################################################################
# Instrukcije
def TAX(self, d): self.x = self.set_nz(self.a)