98 lines
3.5 KiB
Python
98 lines
3.5 KiB
Python
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import re
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import subprocess
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NORMAL_COLOR = '\033[0m'
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REG_STATUS_TO_COLOR = {
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"insert": '\033[32m',
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"change": '\033[33m',
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"remove": '\033[31m',
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"none": '\033[0m',
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"jump": '\033[36m'
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}
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class AsciiPainter:
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def __init__ (self, registers=None, max_stack_size=8, stack_draw_mode="up"):
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self.registers = registers if registers else REGISTERS
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self.states = []
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self.max_stack_size = max_stack_size
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self.stack_draw_mode = stack_draw_mode
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def saveState (self, emu, line_nr=None):
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# Init state
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state = []
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self.states.append(state)
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# Write opcode to state
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if line_nr != None:
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signature = emu.getLineSignature(line_nr)
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for token in signature:
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state.append({ 'state': 'none', 'val': token })
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#
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for i in range(3-len(state)): state.append({'state':'none', 'val': ''})
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for i in range(len(state)-3): state.pop()
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state.append({'state':'none', 'val':''})
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# Write registers to state
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for reg_name in self.registers:
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if reg_name =="":
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state.append({'state':'none', 'val':''})
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continue
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reg_state = emu.regState(reg_name)
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state.append({ 'state': reg_state, 'val': emu.getVal(reg_name) })
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# Write stack to state
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stack_base_pointer = emu.getVal('%rbp')
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print(emu.last_sp, emu.getVal('%rsp'))
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base_sp = emu.getVal('%rsp')
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assert(isinstance(emu.getVal('%rsp'), (int, long)))
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state.append({'state':'none', 'val': ''})
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if emu.regState('m'+str(base_sp-1)) == 'remove':
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state.append({'state': emu.regState('m'+str(base_sp-1)), 'val': emu.stack[base_sp-1]})
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else:
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state.append({'state': 'none', 'val': ''})
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for index in range(0, self.max_stack_size):
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stack_i = base_sp + index
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print(index, stack_i)
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if stack_i < emu.max_stack_size:
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state.append({ 'state': emu.regState("m"+str(stack_i)), 'val': emu.stack[stack_i] })
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if stack_base_pointer == index:
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stack_base_pointer = emu.stack[base_pointer]
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# TODO: Draw stack frame seperators
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else:
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state.append({'state':'none', 'val': ''})
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def to_string (self, emu):
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number_states = len(self.states)
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number_state_vars = len(self.states[0])
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term_width = int(subprocess.check_output(['tput', 'cols']))
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number_states_pr_block = term_width / (10+2) - 1
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separator = '-' * term_width
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l = []
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for base_state in range(0, number_states, number_states_pr_block):
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l.append(separator)
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for var_i in range(0, number_state_vars):
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l.append('{:10}'.format(self.nameOfVar(var_i-4)))
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for state_i in range(0, min(number_states_pr_block, number_states - base_state)):
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var = self.states[base_state+state_i][var_i]
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l.append('{}{:>10}{} '.format(REG_STATUS_TO_COLOR[var['state']], var['val'], NORMAL_COLOR))
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l.append('\n')
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l.append(separator)
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return ''.join(l)
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def nameOfVar (self, i):
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if i < 0: return ''
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if i < len(self.registers):
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return self.registers[i]
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elif i != len(self.registers):
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state_i = i-len(self.registers) - 2
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return 'TOS{}{}'.format('+' if state_i < 0 else '-', abs(state_i))
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else:
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return ''
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def __str__ (self):
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return 'TikzPainter[]'
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