def run(self, cycles_per_run=1000, max_cycles=0):
"""main run loop of vamos"""
log_main.info("start cpu: %06x", self.ctx.process.prog_start)
total_cycles = 0
start_time = time.clock()
# main loop
try:
while self.stay:
total_cycles += self.cpu.execute(cycles_per_run)
# end after enough cycles
if max_cycles > 0 and total_cycles >= max_cycles:
break
# some error fored a quit?
if self.et.has_errors:
break
except Exception as e:
self.et.report_error(e)
end_time = time.clock()
# calc benchmark values
if self.benchmark:
self._calc_benchmark(total_cycles, end_time - start_time)
# if errors happened then report them now
if self.et.has_errors:
exit_code = 1
else:
# get exit code from CPU
exit_code = int(self.cpu.r_reg(REG_D0))
log_main.info("exit code=%d", exit_code)
return exit_code
def init_cpu(self):
# prepare m68k
log_main.info("setting up m68k")
# setup stack & first PC
self.mem.access.w32(0, self.ctx.process.stack_initial)
self.mem.access.w32(4, self.ctx.process.prog_start)
self.cpu.pulse_reset()
# set end RESET opcode at 0 and execbase at 4
op_reset = 0x04e70
self.mem.access.w16(0, op_reset)
self.mem.access.w32(4, self.ctx.exec_lib.addr_base)
# setup arg in D0/A0
self.cpu.w_reg(REG_D0, self.ctx.process.arg_len)
self.cpu.w_reg(REG_A0, self.ctx.process.arg_base)
# d2=stack_size. this value is also in 4(sp) (see Process.init_stack), but
# various C programs rely on it being present (1.3-3.1 at least have it).
self.cpu.w_reg(REG_D2, self.ctx.process.stack_size)
# to track old dos values
self.cpu.w_reg(REG_A2, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A5, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A6, self.ctx.dos_guard_base)
def _init_cpu(self):
# prepare m68k
log_main.info("setting up m68k")
# setup stack & first PC
self.mem.access.w32(0, self.ctx.process.stack_initial)
self.mem.access.w32(4, self.ctx.process.prog_start)
self.cpu.pulse_reset()
# set end RESET opcode at 0 and execbase at 4
op_reset = 0x04e70
self.mem.access.w16(0, op_reset)
self.mem.access.w32(4, self.ctx.exec_lib.addr_base)
# setup arg in D0/A0
if self.shell:
# thor: If we run a shell through vamos, then
# BPCL places the BPTR to the parameter packet into
# d1. The default shell can work without ParmPkt
# thus leave this at zero for this time.
self.cpu.w_reg(REG_D1, 0)
else:
self.cpu.w_reg(REG_D0, self.ctx.process.arg_len)
self.cpu.w_reg(REG_A0, self.ctx.process.arg_base)
# d2=stack_size. this value is also in 4(sp) (see Process.init_stack), but
# various C programs rely on it being present (1.3-3.1 at least have it).
self.cpu.w_reg(REG_D2, self.ctx.process.stack_size)
# to track old dos values
self.cpu.w_reg(REG_A2, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A5, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A6, self.ctx.dos_guard_base)
def run(self, cycles_per_run=1000, max_cycles=0):
"""main run loop of vamos"""
log_main.info("start cpu: %06x", self.ctx.process.prog_start)
total_cycles = 0
start_time = time.clock()
# main loop
while self.stay:
total_cycles += self.cpu.execute(cycles_per_run)
# end after enough cycles
if max_cycles > 0 and total_cycles >= max_cycles:
break
# some error fored a quit?
if self.et.has_errors:
break
end_time = time.clock()
# calc benchmark values
if self.benchmark:
self._calc_benchmark( total_cycles, end_time - start_time )
# if errors happened then report them now
if self.et.has_errors:
log_main.error("After %d cycles:", total_cycles)
self.et.dump()
exit_code = 1
else:
# get exit code from CPU
exit_code = int(self.cpu.r_reg(REG_D0))
log_main.info("exit code=%d", exit_code)
return exit_code
def _init_cpu(self):
# prepare m68k
log_main.info("setting up m68k")
# setup stack & first PC
self.mem.access.w32(0, self.ctx.process.stack_initial)
self.mem.access.w32(4, self.ctx.process.prog_start)
self.cpu.pulse_reset()
# set end RESET opcode at 0 and execbase at 4
op_reset = 0x04e70
self.mem.access.w16(0, op_reset)
self.mem.access.w32(4, self.ctx.exec_lib.addr_base)
# setup arg in D0/A0
if self.shell:
# thor: If we run a shell through vamos, then
# BPCL places the BPTR to the parameter packet into
# d1. The default shell can work without ParmPkt
# thus leave this at zero for this time.
self.cpu.w_reg(REG_D1, 0)
else:
self.cpu.w_reg(REG_D0, self.ctx.process.arg_len)
self.cpu.w_reg(REG_A0, self.ctx.process.arg_base)
# d2=stack_size. this value is also in 4(sp) (see Process.init_stack), but
# various C programs rely on it being present (1.3-3.1 at least have it).
self.cpu.w_reg(REG_D2, self.ctx.process.stack_size)
# to track old dos values
self.cpu.w_reg(REG_A2, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A5, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A6, self.ctx.dos_guard_base)
def _calc_benchmark(self, total_cycles, delta_time):
python_time = self.ctx.lib_mgr.bench_total
cpu_time = delta_time - python_time
mhz = total_cycles / (1000000.0 * delta_time)
cpu_percent = cpu_time * 100.0 / delta_time
python_percent = 100.0 - cpu_percent
log_main.info("done %d cycles in host time %.4fs -> %5.2f MHz m68k CPU", total_cycles, cpu_time, mhz)
log_main.info("code time %.4fs (%.2f %%), python time %.4fs (%.2f %%) -> total time %.4fs", \
cpu_time, cpu_percent, python_time, python_percent, delta_time)
def _init_cpu(self):
# prepare m68k
log_main.info("setting up m68k")
# setup stack & first PC
self.mem.w32(0, self.ctx.process.stack_initial)
self.mem.w32(4, self.ctx.process.prog_start)
self.cpu.pulse_reset()
# clear long at 0 and set execbase at 4
self.mem.w32(0, 0)
self.mem.w32(4, self.ctx.exec_addr)
# at exit_addr (0x400) we setup the return actions after process end:
# we want to call a shutdown trap that is able to setup some cleanup
# trampoline if necessary. This requires that the trap is called via
# jsr so the auto_rts of the trap can be delayed by the stack entry
# the trampoline prepared...
# alloc trap
tid = self.ctx.traps.setup(self.shutdown_trap, auto_rts=True)
addr = self.exit_addr
# place the following code:
# 0x400: bsr.b 4
# 0x402: reset -> triggers end of CPU emu
# 0x404: trap (with auto_rts)
op_bsr = 0x6102
op_reset = 0x04e70
op_trap = 0xa000 + tid
self.mem.w16(addr, op_bsr)
self.mem.w16(addr + 2, op_reset)
self.mem.w16(addr + 4, op_trap)
# store location of reset opcode so reset handler knows what the final reset it
self.reset_addr = addr + 2
# setup arg in D0/A0
if self.shell:
# thor: If we run a shell through vamos, then
# BPCL places the BPTR to the parameter packet into
# d1. The default shell can work without ParmPkt
# thus leave this at zero for this time.
self.cpu.w_reg(REG_D1, 0)
else:
self.cpu.w_reg(REG_D0, self.ctx.process.arg_len)
self.cpu.w_reg(REG_A0, self.ctx.process.arg_base)
# d2=stack_size. this value is also in 4(sp) (see Process.init_stack), but
# various C programs rely on it being present (1.3-3.1 at least have it).
self.cpu.w_reg(REG_D2, self.ctx.process.stack_size)
# to track old dos values
self.cpu.w_reg(REG_A2, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A5, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A6, self.ctx.dos_guard_base)
def log(self):
"""after logging is setup dump info and other remarks"""
if len(self.found_files) == 0:
log_main.info("no config file found: %s" % ",".join(self.files))
else:
log_main.info("read config file: %s" % ",".join(self.found_files))
# dump config
self._dump()
# print recorded errors
if len(self.errors) > 0:
for e in self.errors:
log_main.error("config error: " + e)
def log(self):
"""after logging is setup dump info and other remarks"""
if len(self.found_files) == 0:
log_main.info("no config file found: %s" % ",".join(self.files))
else:
log_main.info("read config file: %s" % ",".join(self.found_files))
# dump config
self._dump()
# print recorded errors
if len(self.errors) > 0:
for e in self.errors:
log_main.error("config error: " + e)
def init_cpu(self):
# prepare m68k
log_main.info("setting up m68k")
# setup stack & first PC
self.mem.access.w32(0, self.ctx.process.stack_initial)
self.mem.access.w32(4, self.ctx.process.prog_start)
self.cpu.pulse_reset()
# set end RESET opcode at 0 and execbase at 4
op_reset = 0x04e70
self.mem.access.w16(0, op_reset)
self.mem.access.w32(4, self.ctx.exec_lib.lib_base)
# setup arg in D0/A0
self.cpu.w_reg(REG_D0, self.ctx.process.arg_len)
self.cpu.w_reg(REG_A0, self.ctx.process.arg_base)
# to track old dos values
self.cpu.w_reg(REG_A2, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A5, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A6, self.ctx.dos_guard_base)
def init_cpu(self):
# prepare m68k
log_main.info("setting up m68k")
# setup stack & first PC
self.mem.access.w32(0, self.ctx.process.stack_initial)
self.mem.access.w32(4, self.ctx.process.prog_start)
self.cpu.pulse_reset()
# set end RESET opcode at 0 and execbase at 4
op_reset = 0x04e70
self.mem.access.w16(0, op_reset)
self.mem.access.w32(4, self.ctx.exec_lib.lib_base)
# setup arg in D0/A0
self.cpu.w_reg(REG_D0, self.ctx.process.arg_len)
self.cpu.w_reg(REG_A0, self.ctx.process.arg_base)
# to track old dos values
self.cpu.w_reg(REG_A2, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A5, self.ctx.dos_guard_base)
self.cpu.w_reg(REG_A6, self.ctx.dos_guard_base)
def run(self, cycles_per_run=1000, max_cycles=0):
"""main run loop of vamos"""
log_main.info("start cpu: %06x", self.ctx.process.prog_start)
total_cycles = 0
start_time = time.clock()
# main loop
while self.stay:
total_cycles += self.cpu.execute(cycles_per_run)
# end after enough cycles
if max_cycles > 0 and total_cycles >= max_cycles:
break
# some error fored a quit?
if self.et.has_errors:
break
end_time = time.clock()
delta_time = end_time - start_time
cpu_time = delta_time - self.trap_time
mhz = total_cycles / (1000000.0 * delta_time)
cpu_percent = cpu_time * 100.0 / delta_time
trap_percent = 100.0 - cpu_percent
log_main.info(
"done %d cycles in host time %.4fs -> %5.2f MHz m68k CPU",
total_cycles, cpu_time, mhz)
log_main.info("code time %.4fs (%.2f %%), trap time %.4fs (%.2f %%) -> total time %.4fs", \
cpu_time, cpu_percent, self.trap_time, trap_percent, delta_time)
# if errors happened then report them now
if self.et.has_errors:
log_main.error("After %d cycles:", total_cycles)
self.et.dump()
exit_code = 1
else:
# get exit code from CPU
exit_code = int(self.cpu.r_reg(REG_D0))
log_main.info("exit code=%d", exit_code)
return exit_code
def run(self, cycles_per_run=1000, max_cycles=0):
"""main run loop of vamos"""
log_main.info("start cpu: %06x", self.ctx.process.prog_start)
total_cycles = 0
start_time = time.clock()
# main loop
while self.stay:
total_cycles += self.cpu.execute(cycles_per_run)
# end after enough cycles
if max_cycles > 0 and total_cycles >= max_cycles:
break
# some error fored a quit?
if self.et.has_errors:
break
end_time = time.clock()
delta_time = end_time - start_time
cpu_time = delta_time - self.trap_time
mhz = total_cycles / (1000000.0 * delta_time)
cpu_percent = cpu_time * 100.0 / delta_time
trap_percent = 100.0 - cpu_percent
log_main.info("done %d cycles in host time %.4fs -> %5.2f MHz m68k CPU", total_cycles, cpu_time, mhz)
log_main.info("code time %.4fs (%.2f %%), trap time %.4fs (%.2f %%) -> total time %.4fs", \
cpu_time, cpu_percent, self.trap_time, trap_percent, delta_time)
# if errors happened then report them now
if self.et.has_errors:
log_main.error("After %d cycles:", total_cycles)
self.et.dump()
exit_code = 1
else:
# get exit code from CPU
exit_code = int(self.cpu.r_reg(REG_D0))
log_main.info("exit code=%d", exit_code)
return exit_code
def shutdown_trap(self, op, pc):
log_main.info("shutdown trap")
# trigger lib manager to shutdown libs
self.ctx.lib_mgr.shutdown()
def log(self):
if len(self.found_files) == 0:
log_main.info("no config file found: %s" % ",".join(self.files))
else:
log_main.info("read config file: %s" % ",".join(self.found_files))