Severe refactoring
This commit is contained in:
Augusto Gunsch
parent
46c2a83735
commit
41e322825f
9
main.c
9
main.c
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@ -53,20 +53,17 @@ int main(int argc, char* argv[]) {
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fclose(input);
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// translating
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int asmcount = 0;
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struct asmln** asmlns = translate(lns, lncount, &asmcount, fname);
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translate(lns, lncount, fname);
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// freeing lns
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freelns(lns, lncount);
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// printing
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for(int i = 0; i < asmcount; i++) {
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printf("%s\n", asmlns[i]->instr);
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}
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printasmlns();
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// freeing asmlns
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free(fname);
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freeasmlns(asmlns, asmcount);
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freeasmlns();
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return 0;
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}
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@ -0,0 +1,96 @@
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#ifndef templates
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#define templates
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#define TPUSHN 11
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char* tpush[TPUSHN] = {
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"",
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"",
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"",
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"",
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"A=D+A",
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"D=M",
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"@SP",
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"A=M",
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"M=D",
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"@SP",
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"M=M+1"
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};
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#define TPUSHCONSN 8
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char* tpushcons[TPUSHCONSN] = {
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"",
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"",
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"D=A",
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"@SP",
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"A=M",
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"M=D",
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"@SP",
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"M=M+1"
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};
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#define TPUSHSTATN 8
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char* tpushstat[TPUSHSTATN] = {
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"",
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"",
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"D=M",
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"@SP",
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"A=M",
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"M=D",
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"@SP",
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"M=M+1"
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};
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#define TPUSHTEMP 8
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char* tpushtemp[TPUSHTEMP] = {
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"",
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"",
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"D=M",
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"@SP",
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"A=M",
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"M=D",
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"@SP",
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"M=M+1"
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};
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#define TPOPN 14
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char* tpop[TPOPN] = {
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"",
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"",
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"",
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"",
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"D=D+A",
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"@R13",
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"M=D",
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"@SP",
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"M=M-1",
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"A=M",
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"D=M",
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"@R13",
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"A=M",
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"M=D"
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};
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#define TPOPSTATN 8
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char* tpopstat[TPOPSTATN] = {
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"",
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"@SP",
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"D=M",
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"M=M-1",
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"A=D",
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"D=M",
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"",
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""
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};
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#define TPOPTEMPN 7
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char* tpoptemp[TPOPTEMPN] = {
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"",
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"@SP",
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"M=M-1",
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"A=M",
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"D=M",
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"",
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""
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};
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#endif
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427
translator.c
427
translator.c
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@ -3,18 +3,54 @@
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#include <stdlib.h>
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#include <ctype.h>
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#include "translator.h"
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#include "templates.h"
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void freeasmlns(struct asmln** lns, int count) {
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for(int i = 0; i < count; i++) {
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free(lns[i]->instr);
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free(lns[i]);
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struct asmln** asmlns;
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int asmind;
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int asmsize;
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char** toclean;
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int tocleansize;
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int tocleanind;
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void pushtoclean(char* topush) {
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int nextsz = sizeof(char*)*(tocleanind+1);
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if(nextsz >= tocleansize) {
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tocleansize = nextsz * 2;
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toclean = realloc(toclean, tocleansize);
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}
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toclean[tocleanind] = topush;
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tocleanind++;
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}
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void freetoclean() {
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for(int i = 0; i < tocleanind; i++) {
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free(toclean[i]);
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}
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free(toclean);
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tocleansize = 0;
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tocleanind = 0;
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}
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void freeasmlns() {
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for(int i = 0; i < asmind; i++) {
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free(asmlns[i]);
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}
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free(asmlns);
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asmsize = 0;
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asmind = 0;
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freetoclean();
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}
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void printasmlns() {
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for(int i = 0; i < asmind; i++) {
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printf("%s\n", asmlns[i]->instr);
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}
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free(lns);
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}
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char* heapstr(const char* input) {
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char* newstr = (char*)malloc(sizeof(char)*(strlen(input)+1));
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strcpy(newstr, input);
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pushtoclean(newstr);
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return newstr;
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}
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@ -38,6 +74,7 @@ char* mkcom(struct line* ln, int indlen) {
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int comlen = sizeof(char) * (strlen(ln->tokens[0]) + strlen(ln->tokens[1]) + indlen + 6);
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char* comment = (char*)malloc(comlen);
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snprintf(comment, comlen, "// %s %s %s", ln->tokens[0], ln->tokens[1], ln->tokens[2]);
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pushtoclean(comment);
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return comment;
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}
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@ -50,33 +87,37 @@ void checkind(struct line* ln, int indsz) {
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}
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}
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char* mkind(char* ind, int indsz) {
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char* mkind(struct line* ln, int indsz) {
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int newsz = sizeof(char) * (indsz + 2);
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char* newind = (char*)malloc(newsz);
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snprintf(newind, newsz, "@%s", ind);
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snprintf(newind, newsz, "@%s", ln->tokens[2]);
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pushtoclean(newind);
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return newind;
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}
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char* mkstatind(char* ind, int indsz, char* fname) {
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char* mkstatind(struct line* ln, int indsz, char* fname) {
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int fnamelen = strlen(fname);
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int newsz = sizeof(char) * (fnamelen + indsz + 3);
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char* newind = (char*)malloc(newsz);
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snprintf(newind, newsz, "@%s.%s", fname, ind);
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snprintf(newind, newsz, "@%s.%s", fname, ln->tokens[2]);
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pushtoclean(newind);
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return newind;
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}
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char* mktempind(char* ind, int indsz) {
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int intind = atoi(ind);
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char* mktempind(struct line* ln, int indsz) {
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int intind = atoi(ln->tokens[2]);
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int newsz = sizeof(char) * (indsz + 3);
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char* newind = (char*)malloc(newsz);
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snprintf(newind, newsz, "@%i", intind+5);
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pushtoclean(newind);
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return newind;
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}
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void checkasmsize(int* size, struct asmln*** lns, int targ) {
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if(targ >= (*size)) {
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(*size)=targ*2;
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(*lns) = (struct asmln**)realloc((*lns), (*size));
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void checkasmsize(int toadd) {
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int targ = sizeof(struct asmln*)*(asmind+toadd);
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if(targ >= asmsize) {
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asmsize = targ * 2;
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asmlns = (struct asmln**)realloc(asmlns, asmsize);
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}
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}
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@ -99,288 +140,162 @@ void checkopamnt(int amnt, struct line* ln) {
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}
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}
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void startpoppush(struct line* ln, struct asmln*** asmlns, int* asmind) {
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checkopamnt(3, ln);
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int asmi = *asmind;
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void addasmlns(struct line* ln, char** insts, int instcount) {
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for(int i = 0; i < instcount; i++) {
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asmlns[asmind] = mkasmln(ln, insts[i]);
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asmind++;
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}
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}
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void startpoppush(struct line* ln, int indlen, char** insts) {
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// // operation segment i
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int indlen = strlen(ln->tokens[2]);
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(*asmlns)[asmi] = mkasmln(ln, mkcom(ln, indlen));
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asmi++;
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insts[0] = mkcom(ln, indlen);
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// @segment
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(*asmlns)[asmi] = mkasmln(ln, switchseg(ln));
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asmi++;
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insts[1] = switchseg(ln);
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// D=M
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(*asmlns)[asmi] = mkasmln(ln, heapstr("D=M"));
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asmi++;
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insts[2] = heapstr("D=M");
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// @i
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checkind(ln, indlen);
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(*asmlns)[asmi] = mkasmln(ln, mkind(ln->tokens[2], indlen));
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asmi++;
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(*asmind) = asmi;
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insts[3] = mkind(ln, indlen);
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}
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void pushcons(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize) {
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checkopamnt(3, ln);
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int asmi = *asmind;
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int totalinstrs = 8;
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checkasmsize(asmsize, asmlns, sizeof(struct asmln*)*(asmi+totalinstrs));
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void pushcons(struct line* ln, int indlen) {
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checkasmsize(TPUSHCONSN);
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// // push constant i
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int indlen = strlen(ln->tokens[2]);
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(*asmlns)[asmi] = mkasmln(ln, mkcom(ln, indlen));
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asmi++;
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tpushcons[0] = mkcom(ln, indlen);
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// @i
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checkind(ln, indlen);
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(*asmlns)[asmi] = mkasmln(ln, mkind(ln->tokens[2], indlen));
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asmi++;
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tpushcons[1] = mkind(ln, indlen);
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const int instcount = 6;
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const char* instrs[] = {
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"D=A",
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"@SP",
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"A=M",
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"M=D",
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"@SP",
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"M=M+1"
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};
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for(int i = 0; i < instcount; i++) {
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(*asmlns)[asmi] = mkasmln(ln, heapstr(instrs[i]));
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asmi++;
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addasmlns(ln, tpushcons, TPUSHCONSN);
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}
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(*asmind) = asmi;
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}
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void pushstat(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize, char* fname) {
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checkopamnt(3, ln);
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int asmi = *asmind;
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int totalinstrs = 8;
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checkasmsize(asmsize, asmlns, sizeof(struct asmln*)*(asmi+totalinstrs));
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void pushstat(struct line* ln, int indlen, char* fname) {
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checkasmsize(TPUSHSTATN);
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// // push static i
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int indlen = strlen(ln->tokens[2]);
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(*asmlns)[asmi] = mkasmln(ln, mkcom(ln, indlen));
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asmi++;
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tpushstat[0] = mkcom(ln, indlen);
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// @fname.i
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checkind(ln, indlen);
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(*asmlns)[asmi] = mkasmln(ln, mkstatind(ln->tokens[2], indlen, fname));
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asmi++;
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tpushstat[1] = mkstatind(ln, indlen, fname);
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const int instcount = 6;
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const char* instrs[] = {
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"D=M",
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"@SP",
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"A=M",
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"M=D",
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"@SP",
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"M=M+1"
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};
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for(int i = 0; i < instcount; i++) {
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(*asmlns)[asmi] = mkasmln(ln, heapstr(instrs[i]));
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asmi++;
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addasmlns(ln, tpushstat, TPUSHSTATN);
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}
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(*asmind) = asmi;
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void pushtemp(struct line* ln, int indlen) {
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checkasmsize(TPUSHSTATN);
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// // pop static i
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tpushtemp[0] = mkcom(ln, indlen);
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// @5+i
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checkind(ln, indlen);
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tpushtemp[1] = mktempind(ln, indlen);
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addasmlns(ln, tpushtemp, TPUSHTEMP);
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}
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void popstat(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize, char* fname) {
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void mkpush(struct line* ln, int indlen) {
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checkasmsize(TPUSHN);
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startpoppush(ln, indlen, tpush);
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addasmlns(ln, tpush, TPUSHN);
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}
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void popstat(struct line* ln, int indlen, char* fname) {
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checkasmsize(TPOPSTATN);
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// // pop static i
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tpopstat[0] = mkcom(ln, indlen);
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// @fname.i
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checkind(ln, indlen);
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tpopstat[6] = mkstatind(ln, indlen, fname);
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// M=D
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tpopstat[7] = heapstr("M=D");
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addasmlns(ln, tpopstat, TPOPSTATN);
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}
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void poptemp(struct line* ln, int indlen) {
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checkasmsize(TPOPTEMPN);
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// // pop static i
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tpoptemp[0] = mkcom(ln, indlen);
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// @5+i
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checkind(ln, indlen);
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tpoptemp[5] = mktempind(ln, indlen);
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// M=D
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tpoptemp[6] = heapstr("M=D");
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addasmlns(ln, tpoptemp, TPOPTEMPN);
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}
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void mkpop(struct line* ln, int indlen) {
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checkasmsize(TPOPN);
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startpoppush(ln, indlen, tpop);
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addasmlns(ln, tpop, TPOPN);
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}
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void switchop(struct line* ln, char* fname) {
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char* op = ln->tokens[0];
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if(strcmp(op, "push") == 0) {
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checkopamnt(3, ln);
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int asmi = *asmind;
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int totalinstrs = 8;
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checkasmsize(asmsize, asmlns, sizeof(struct asmln*)*(asmi+totalinstrs));
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// // pop static i
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char* seg = ln->tokens[1];
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int indlen = strlen(ln->tokens[2]);
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(*asmlns)[asmi] = mkasmln(ln, mkcom(ln, indlen));
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asmi++;
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const int instcount = 5;
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const char* instrs[] = {
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"@SP",
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"D=M",
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"M=M-1",
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"A=D",
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"D=M"
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};
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if(strcmp(seg, "constant") == 0)
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pushcons(ln, indlen);
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for(int i = 0; i < instcount; i++) {
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(*asmlns)[asmi] = mkasmln(ln, heapstr(instrs[i]));
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asmi++;
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}
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else if(strcmp(seg, "static") == 0)
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pushstat(ln, indlen, fname);
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// @fname.i
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checkind(ln, indlen);
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(*asmlns)[asmi] = mkasmln(ln, mkstatind(ln->tokens[2], indlen, fname));
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asmi++;
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else if(strcmp(seg, "temp") == 0)
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pushtemp(ln, indlen);
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// M=D
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(*asmlns)[asmi] = mkasmln(ln, heapstr("M=D"));
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asmi++;
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(*asmind) = asmi;
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}
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void pushtemp(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize) {
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int asmi = *asmind;
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int totalinstrs = 8;
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checkasmsize(asmsize, asmlns, sizeof(struct asmln*)*(asmi+totalinstrs));
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// // pop static i
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int indlen = strlen(ln->tokens[2]);
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(*asmlns)[asmi] = mkasmln(ln, mkcom(ln, indlen));
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asmi++;
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// @5+i
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checkind(ln, indlen);
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(*asmlns)[asmi] = mkasmln(ln, mktempind(ln->tokens[2], indlen));
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asmi++;
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const int instcount = 6;
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const char* instrs[] = {
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"D=M",
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"@SP",
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"A=M",
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"M=D",
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"@SP",
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"M=M+1"
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};
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for(int i = 0; i < instcount; i++) {
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(*asmlns)[asmi] = mkasmln(ln, heapstr(instrs[i]));
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asmi++;
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}
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(*asmind) = asmi;
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}
|
||||
|
||||
void mkpush(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize) {
|
||||
int asmi = *asmind;
|
||||
int totalinstrs = 11;
|
||||
checkasmsize(asmsize, asmlns, sizeof(struct asmln*)*(asmi+totalinstrs));
|
||||
|
||||
startpoppush(ln, asmlns, &asmi);
|
||||
|
||||
const int instcount = 7;
|
||||
const char* instrs[] = {
|
||||
"A=D+A",
|
||||
"D=M",
|
||||
"@SP",
|
||||
"A=M",
|
||||
"M=D",
|
||||
"@SP",
|
||||
"M=M+1"
|
||||
};
|
||||
|
||||
for(int i = 0; i < instcount; i++) {
|
||||
(*asmlns)[asmi] = mkasmln(ln, heapstr(instrs[i]));
|
||||
asmi++;
|
||||
}
|
||||
|
||||
(*asmind) = asmi;
|
||||
}
|
||||
|
||||
void poptemp(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize) {
|
||||
int asmi = *asmind;
|
||||
int totalinstrs = 7;
|
||||
checkasmsize(asmsize, asmlns, sizeof(struct asmln*)*(asmi+totalinstrs));
|
||||
|
||||
// // pop static i
|
||||
int indlen = strlen(ln->tokens[2]);
|
||||
(*asmlns)[asmi] = mkasmln(ln, mkcom(ln, indlen));
|
||||
asmi++;
|
||||
|
||||
const int instcount = 4;
|
||||
const char* instrs[] = {
|
||||
"@SP",
|
||||
"M=M-1",
|
||||
"A=M",
|
||||
"D=M"
|
||||
};
|
||||
|
||||
for(int i = 0; i < instcount; i++) {
|
||||
(*asmlns)[asmi] = mkasmln(ln, heapstr(instrs[i]));
|
||||
asmi++;
|
||||
}
|
||||
|
||||
// @5+i
|
||||
checkind(ln, indlen);
|
||||
(*asmlns)[asmi] = mkasmln(ln, mktempind(ln->tokens[2], indlen));
|
||||
asmi++;
|
||||
|
||||
// M=D
|
||||
(*asmlns)[asmi] = mkasmln(ln, heapstr("M=D"));
|
||||
asmi++;
|
||||
|
||||
(*asmind) = asmi;
|
||||
}
|
||||
|
||||
void mkpop(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize) {
|
||||
int asmi = *asmind;
|
||||
int totalinstrs = 14;
|
||||
checkasmsize(asmsize, asmlns, sizeof(struct asmln*)*(asmi+totalinstrs));
|
||||
|
||||
startpoppush(ln, asmlns, &asmi);
|
||||
|
||||
const int instcount = 10;
|
||||
const char* instrs[] = {
|
||||
"D=D+A",
|
||||
"@R13",
|
||||
"M=D",
|
||||
"@SP",
|
||||
"M=M-1",
|
||||
"A=M",
|
||||
"D=M",
|
||||
"@R13",
|
||||
"A=M",
|
||||
"M=D"
|
||||
};
|
||||
|
||||
for(int i = 0; i < instcount; i++) {
|
||||
(*asmlns)[asmi] = mkasmln(ln, heapstr(instrs[i]));
|
||||
asmi++;
|
||||
}
|
||||
|
||||
(*asmind) = asmi;
|
||||
}
|
||||
|
||||
void switchop(struct line* ln, struct asmln*** asmlns, int* asmind, int* asmsize, char* fname) {
|
||||
if(strcmp(ln->tokens[0], "push") == 0)
|
||||
if(strcmp(ln->tokens[1], "constant") == 0)
|
||||
pushcons(ln, asmlns, asmind, asmsize);
|
||||
else if(strcmp(ln->tokens[1], "static") == 0)
|
||||
pushstat(ln, asmlns, asmind, asmsize, fname);
|
||||
else if(strcmp(ln->tokens[1], "temp") == 0)
|
||||
pushtemp(ln, asmlns, asmind, asmsize);
|
||||
else
|
||||
mkpush(ln, asmlns, asmind, asmsize);
|
||||
else if(strcmp(ln->tokens[0], "pop") == 0)
|
||||
if(strcmp(ln->tokens[1], "static") == 0)
|
||||
popstat(ln, asmlns, asmind, asmsize, fname);
|
||||
else if(strcmp(ln->tokens[1], "temp") == 0)
|
||||
poptemp(ln, asmlns, asmind, asmsize);
|
||||
mkpush(ln, indlen);
|
||||
}
|
||||
else if(strcmp(op, "pop") == 0) {
|
||||
checkopamnt(3, ln);
|
||||
char* seg = ln->tokens[1];
|
||||
int indlen = strlen(ln->tokens[2]);
|
||||
|
||||
if(strcmp(seg, "static") == 0)
|
||||
popstat(ln, indlen, fname);
|
||||
|
||||
else if(strcmp(seg, "temp") == 0)
|
||||
poptemp(ln, indlen);
|
||||
|
||||
else
|
||||
mkpop(ln, asmlns, asmind, asmsize);
|
||||
mkpop(ln, indlen);
|
||||
}
|
||||
}
|
||||
|
||||
struct asmln** translate(struct line** lns, int lnscount, int* asmcount, char* fname) {
|
||||
int sizebet = sizeof(struct asmln*)*(lnscount * 15);
|
||||
int asmi = (*asmcount);
|
||||
struct asmln** asmlns = (struct asmln**)malloc(sizebet);
|
||||
void translate(struct line** lns, int lnscount, char* fname) {
|
||||
asmsize = sizeof(struct asmln*)*(lnscount * 15);
|
||||
asmind = 0;
|
||||
asmlns = (struct asmln**)malloc(asmsize);
|
||||
|
||||
tocleanind = 0;
|
||||
tocleansize = sizeof(char*)*(lnscount * 5);
|
||||
toclean = (char**)malloc(tocleansize);
|
||||
|
||||
for(int i = 0; i < lnscount; i++) {
|
||||
struct line* ln = lns[i];
|
||||
switchop(ln, &asmlns, &asmi, &sizebet, fname);
|
||||
switchop(ln, fname);
|
||||
}
|
||||
|
||||
(*asmcount) = asmi;
|
||||
return asmlns;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,11 +1,13 @@
|
|||
#ifndef translator
|
||||
#define translator
|
||||
#include "parser.h"
|
||||
|
||||
struct asmln {
|
||||
char* instr;
|
||||
int truen;
|
||||
};
|
||||
|
||||
void freeasmlns(struct asmln** lns, int count);
|
||||
struct asmln** translate(struct line** lns, int lnscount, int* asmcount, char* fname);
|
||||
void freeasmlns();
|
||||
void printasmlns();
|
||||
void translate(struct line** lns, int lnscount, char* fname);
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue