jack-compiler/misc/os.c

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C
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#include <stdlib.h>
#include <string.h>
#include "os.h"
#include "util.h"
#define MATH_COUNT 5
SUBROUTDEC* math[MATH_COUNT];
#define STRING_COUNT 12
SUBROUTDEC* stringclass[STRING_COUNT];
#define ARRAY_COUNT 2
SUBROUTDEC* array[ARRAY_COUNT];
#define OUTPUT_COUNT 6
SUBROUTDEC* output[OUTPUT_COUNT];
#define SCREEN_COUNT 6
SUBROUTDEC* screen[SCREEN_COUNT];
#define KEYBOARD_COUNT 4
SUBROUTDEC* keyboard[KEYBOARD_COUNT];
#define MEMORY_COUNT 4
SUBROUTDEC* memory[MEMORY_COUNT];
#define SYS_COUNT 3
SUBROUTDEC* sys[SYS_COUNT];
CLASS* mkclass(const char* name) {
CLASS* class = (CLASS*)malloc(sizeof(CLASS));
class->name = ezheapstr(name);
return class;
}
SUBROUTDEC* mkdec(const char* class, SUBROUTCLASS subroutclass, char* type, const char* name) {
SUBROUTDEC* dec = (SUBROUTDEC*)malloc(sizeof(SUBROUTDEC));
dec->class = mkclass(class);
dec->subroutclass = subroutclass;
dec->type = type;
dec->name = ezheapstr(name);
return dec;
}
void populatemath() {
math[0] = mkdec("Math", function, "int", "multiply");
math[1] = mkdec("Math", function, "int", "divide");
math[2] = mkdec("Math", function, "int", "min");
math[3] = mkdec("Math", function, "int", "max");
math[4] = mkdec("Math", function, "int", "sqrt");
}
void populatestringclass() {
stringclass[0] = mkdec("String", constructor, "String", "new");
stringclass[1] = mkdec("String", method, "int", "dispose");
stringclass[2] = mkdec("String", method, "int", "length");
stringclass[3] = mkdec("String", method, "char", "charAt");
stringclass[4] = mkdec("String", method, "void", "setCharAt");
stringclass[5] = mkdec("String", method, "String", "appendChar");
stringclass[6] = mkdec("String", method, "void", "eraseLastChar");
stringclass[7] = mkdec("String", method, "int", "intValue");
stringclass[8] = mkdec("String", method, "void", "setInt");
stringclass[9] = mkdec("String", function, "char", "backSpace");
stringclass[10] = mkdec("String", function, "char", "doubleQuote");
stringclass[11] = mkdec("String", function, "char", "newLine");
}
void populatearray() {
array[0] = mkdec("Array", function, "Array", "new");
array[1] = mkdec("Array", method, "void", "dispose");
}
void populateoutput() {
output[0] = mkdec("Output", function, "void", "moveCursor");
output[1] = mkdec("Output", function, "void", "printChar");
output[2] = mkdec("Output", function, "void", "printString");
output[3] = mkdec("Output", function, "void", "printInt");
output[4] = mkdec("Output", function, "void", "printLn");
output[5] = mkdec("Output", function, "void", "backSpace");
}
void populatescreen() {
screen[0] = mkdec("Screen", function, "void", "clearScreen");
screen[1] = mkdec("Screen", function, "void", "setColor");
screen[2] = mkdec("Screen", function, "void", "drawPixel");
screen[3] = mkdec("Screen", function, "void", "drawLine");
screen[4] = mkdec("Screen", function, "void", "drawRectangle");
screen[5] = mkdec("Screen", function, "void", "drawCircle");
}
void populatekeyboard() {
keyboard[0] = mkdec("Keyboard", function, "char", "keyPressed");
keyboard[1] = mkdec("Keyboard", function, "char", "readChar");
keyboard[2] = mkdec("Keyboard", function, "String", "readLine");
keyboard[3] = mkdec("Keyboard", function, "int", "readInt");
}
void populatememory() {
memory[0] = mkdec("Memory", function, "int", "peek");
memory[1] = mkdec("Memory", function, "void", "poke");
memory[2] = mkdec("Memory", function, "Array", "alloc");
memory[3] = mkdec("Memory", function, "void", "deAlloc");
}
void populatesys() {
sys[0] = mkdec("Sys", function, "void", "halt");
sys[1] = mkdec("Sys", function, "void", "error");
sys[2] = mkdec("Sys", function, "void", "wait");
}
void populateos() {
populatemath();
populatestringclass();
populatearray();
populateoutput();
populatescreen();
populatekeyboard();
populatememory();
populatesys();
}
void freedecs(SUBROUTDEC** array, int size) {
for(int i = 0; i < size; i++) {
free(array[i]->class->name);
free(array[i]->class);
free(array[i]->name);
free(array[i]);
}
}
void freeos() {
freedecs(math, MATH_COUNT);
freedecs(stringclass, STRING_COUNT);
freedecs(array, ARRAY_COUNT);
freedecs(output, OUTPUT_COUNT);
freedecs(screen, SCREEN_COUNT);
freedecs(keyboard, KEYBOARD_COUNT);
freedecs(memory, MEMORY_COUNT);
freedecs(sys, SYS_COUNT);
}
SUBROUTDEC* getdec(SUBROUTDEC** array, int size, const char* name) {
for(int i = 0; i < size; i++)
if(!strcmp(array[i]->name, name))
return array[i];
}
SUBROUTDEC* getossubroutdec(SUBROUTCALL* call) {
if(!strcmp(call->parentname, "Math"))
return getdec(math, MATH_COUNT, call->name);
if(!strcmp(call->parentname, "String"))
return getdec(stringclass, STRING_COUNT, call->name);
if(!strcmp(call->parentname, "Array"))
return getdec(array, ARRAY_COUNT, call->name);
if(!strcmp(call->parentname, "Output"))
return getdec(output, OUTPUT_COUNT, call->name);
if(!strcmp(call->parentname, "Screen"))
return getdec(screen, SCREEN_COUNT, call->name);
if(!strcmp(call->parentname, "Keyboard"))
return getdec(keyboard, KEYBOARD_COUNT, call->name);
if(!strcmp(call->parentname, "Memory"))
return getdec(memory, MEMORY_COUNT, call->name);
if(!strcmp(call->parentname, "Sys"))
return getdec(sys, SYS_COUNT, call->name);
return NULL;
}