Your lexical analyzer should be hand-coded for this assignment; that is, you will not use a lexical analyzer generator.The statements will be encoded for a hypothetical stack machine with the following instructions: PUSHv push v (an integer constant) on the stack RVALUE l push the contents of variable l LVALUEl push the address of the variable l POP throw away the top value on the stack STO the rvalue on top of the stack is place in the lvalue below it and both are popped COPY push a copy of the top value on the stack ADD pop the top two values off the stack, add them, and push the result SUB pop the top two values off the stack, subtract them, and push the result MPY pop the top two values off the stack, multiply them, and push the result DIV pop the top two values off the stack, divide them, and push the result MOD pop the top two values off the stack, compute the modulus, and push the result POW pop the top two values off the stack, compute the exponentiation operation,and push the result HALT stop executionYou may useC, Java, Ada, or Python to write your program. You will, of course, find it necessary to remove left recursion in certain productions. Your compiler will prompt for the name of the input program file, and send the output to standard output.No symbol table is necessary for this exercise. If you construct one, management would be suitably impressed.On errors, a “meaningful” error message should be printed; i.e., “DO expected in line xx”, “expression expected”, etc. Management would be impressed if you attempted to recover from an error rather than simply halting compilation.For example, if you are translatiingbegin answer := alpha + 2 * gamma div (C3P0 R2D2) endYour compiled code would be: LVALUE answer RVALUE alpha PUSH 2 RVALUE gamma MPY RVALUE C3P0 RVALUE R2D2 SUB DIV ADD STO HALTbeginalpha:=20;gamma:=11;C3P0:=5;R2D2:=4; answer:=alpha+2*gammadiv(C3P0-R2D2);gun:=(imodammo)^2^2^2end代写CS Finance|建模|代码|系统|报告|考试编程类：C++,JAVA ,数据库,WEB,Linux,Nodejs,JSP,Html,Prolog,Python,Haskell,hadoop算法,系统 机器学习金融类：统计，计量，风险投资，金融工程，R语言，Python语言，Matlab，建立模型，数据分析，数据处理服务类：Lab/Assignment/Project/Course/Qzui/Midterm/Final/Exam/Test帮助代写代考辅导E-mail:[email protected]微信：BadGeniuscs 工作时间：无休息工作日-早上8点到凌晨3点如果您用的手机请先保存二维码到手机里面，识别图中二维码。如果用电脑，直接掏出手机果断扫描。

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