130 lines
4.5 KiB
Python
130 lines
4.5 KiB
Python
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import re
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REG_STATUS_TO_COLOR = {
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"insert": "green",
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"change": "yellow",
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"remove": "red",
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"none": "black",
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"jump": "orange"
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}
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DEFAULT_OPTIONS = """register_node/.style={rectangle, draw=black!30,
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fill=black!5, very thick, minimum size=0.5,
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minimum width=20mm}, text_node/.style={}"""
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class TikzPainter:
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def __init__ (self, registers=None, max_stack_size=8, stack_draw_mode="up", options=None):
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self.registers = registers if registers else REGISTERS
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self.text = []
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self.pos_x = 0
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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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self.options = options if options else DEFAULT_OPTIONS
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def addText (self, str, *args):
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text = re.sub(r"[^\\]%", "\\%", str.format(*args))
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self.text.append(text)
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def getRegColor (self, reg_state):
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return REG_STATUS_TO_COLOR[reg_state]
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def drawStackUpward (self, pos, emu, x):
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base_pointer = emu.getVal('%rbp')
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pos -= 1.5
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base_sp = min(emu.last_sp, emu.getVal('%rsp'))
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pos += 0.5 * max(0, emu.getVal('%rsp')-emu.last_sp)
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assert(isinstance(emu.getVal('%rsp'), int))
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for index in range(base_sp, 3+min(emu.max_stack_size, emu.getVal('%rsp')+self.max_stack_size)):
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reg_state = emu.regState("m"+str(index))
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reg_dect = "register_node, fill="+self.getRegColor(reg_state)+"!10"
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self.addText("\t\\node[{}]() at ({}, {}){{{}}};\n",
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reg_dect, x, pos, emu.stack[index])
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if base_pointer == index:
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self.addText("\t\\draw ({0},{2}) -- ({1},{2});\n",x-1.1,x+1.1,pos-0.25)
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base_pointer = emu.stack[base_pointer]
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pos -= 0.5
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return pos, x
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def drawStackDownward (self, pos, emu, x):
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pos -= 1
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for index in range(emu.getVal('%rsp')-8, max(emu.last_sp, emu.getVal('%rsp'))):
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reg_state = emu.regState("m"+str(index))
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reg_dect = "register_node, fill="+self.getRegColor(reg_state)+"!10"
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self.addText("\t\\node[{}]() at ({}, {}){{{}}};\n",
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reg_dect, x, pos, emu.stack[index])
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pos -= 0.5
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return pos, x
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def saveState (self, emu, line_nr=None):
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x = (self.pos_x+1)*2.5-0.5
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self.pos_x += 1
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# Draw register cells
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pos = 0.5
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for reg_name in self.registers:
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pos -= 0.5
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if reg_name =="":
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continue
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reg_state = emu.regState(reg_name)
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reg_dect = "register_node, fill="+self.getRegColor(reg_state)+"!10"
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self.addText("\t\\node[{}]() at ({}, {}){{{}}};\n",
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reg_dect, x, pos, emu.getVal(reg_name))
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# Draw stack
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if self.stack_draw_mode == "up":
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pos, x = self.drawStackUpward(pos, emu, x)
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else:
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pos, x = self.drawStackDownward(pos, emu, x)
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# Draw line signature
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if line_nr == None:
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return
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pos = 2
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signature = emu.getLineSignature(line_nr)
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for token in signature:
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self.addText("\t\\node[text_node]() at ({}, {}){{{}}};\n",
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x-1.25, pos, token)
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pos -= 0.5
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def drawNames (self, emu):
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x = 0
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pos = 0
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for reg_name in self.registers:
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self.addText("\t\\node[text_node]() at ({}, {}){{{}}};\n",
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x, pos, reg_name[1:])
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pos -= 0.5
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# Draw stack
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if self.stack_draw_mode == "up":
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self.drawStackNamesUpward(pos, emu, x)
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else:
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self.drawStackNamesDownward(pos, emu, x)
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def drawStackNamesUpward (self, pos, emu, x):
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self.addText("\t\\node[text_node]() at ({}, {}){{TOS+1}};\n",
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x, pos-0.5)
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self.addText("\t\\node[text_node]() at ({}, {}){{TOS}};\n",
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x, pos-1.0)
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pos -= 1
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for index in range(1,self.max_stack_size):
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pos -= 0.5
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self.addText("\t\\node[text_node]() at ({}, {}){{TOS-{}}};\n",
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x, pos, index)
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def to_string (self, emu):
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PRE = """ \\documentclass{standalone}
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\\usepackage{tikz}
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\\begin{document}
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\\begin{tikzpicture}["""+self.options+"]"
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POST = """\\end{tikzpicture}
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\\end{document}"""
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self.drawNames(emu)
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return PRE + "".join(self.text) + POST
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def __str__ (self):
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return 'TikzPainter[]'
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