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#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#define ungetchar(ch) ungetc(ch, stdin)
typedef enum { NONE, NUMBER, WIRE } SIGTYPE;
typedef enum { ASSIGN, AND, OR, NOT, LSHIFT, RSHIFT } OPTYPE;
typedef struct {
SIGTYPE type;
union {
char wire[20];
uint16_t number;
} value;
} SIGNAL;
SIGNAL wire() {
SIGNAL s;
int i = 0, ch;
s.type = WIRE;
while((ch = getchar()) != ' ' && ch != '\n')
s.value.wire[i++] = ch;
s.value.wire[i] = '\0';
return s;
}
SIGNAL number() {
SIGNAL s;
int ch, num = 0;
while((ch = getchar()) != ' ')
num = (num * 10) + (ch - 48);
s.type = NUMBER;
s.value.number = num;
return s;
}
void printfunction(OPTYPE op, SIGNAL in1, SIGNAL in2, SIGNAL out) {
char* b1 = (in1.type == WIRE ? "()\0" : "\0");
char* b2 = (in2.type == WIRE ? "()\0" : "\0");
char s1[25], s2[25];
switch(in1.type) {
case NUMBER:
sprintf(s1, "%d", in1.value.number);
break;
case WIRE:
sprintf(s1, "wire_%s", in1.value.wire);
}
switch(in2.type) {
case NUMBER:
sprintf(s2, "%d", in2.value.number);
break;
case WIRE:
sprintf(s2, "wire_%s", in2.value.wire);
}
dprintf(2, "uint16_t wire_%s();\n", out.value.wire);
printf("uint16_t wire_%s() {\n", out.value.wire);
printf("\tuint16_t out;\n");
printf("\tif(iscached(\"%s\"))\n", out.value.wire);
printf("\t\treturn getcache(\"%s\");\n", out.value.wire);
printf("\telse {\n");
switch(op) {
case ASSIGN:
printf("\t\tout = %s%s;\n", s1, b1);
break;
case AND:
printf("\t\tout = (%s%s & %s%s);\n", s1, b1, s2, b2);
break;
case OR:
printf("\t\tout = (%s%s | %s%s);\n", s1, b1, s2, b1);
break;
case NOT:
printf("\t\tout = ~%s%s;\n", s2, b2);
break;
case LSHIFT:
printf("\t\tout = (%s%s << %s%s);\n", s1, b1, s2, b2);
break;
case RSHIFT:
printf("\t\tout = (%s%s >> %s%s);\n", s1, b1, s2, b2);
break;
}
printf("\t\tputcache(\"%s\", out);\n", out.value.wire);
printf("\t\treturn out;\n");
printf("\t}\n");
printf("}\n");
}
void preamble() {
dprintf(3, "#include <stdlib.h>\n#include <stdio.h>\n#include <string.h>\n#include <stdint.h>\n\n");
dprintf(3, "uint16_t* cache;\nchar* incache;\n\n");
dprintf(3, "int wtoi(char* wire) {\n\tint idx = 0, i;\n\tfor(i = 0; wire[i] != '\\0'; i++) {\n\t\tidx *= 26;\n\t\tidx += wire[i];\n\t}\n\treturn idx;\n}\n");
dprintf(3, "char iscached(char* wire) {\n\treturn incache[wtoi(wire)];\n}\n");
dprintf(3, "uint16_t getcache(char* wire) {\n\treturn cache[wtoi(wire)];\n}\n");
dprintf(3, "void putcache(char* wire, uint16_t value) {\n\tcache[wtoi(wire)] = value;\n}\n\n");
}
void postamble() {
char* len = "26*26";
printf("\nint main() {\n");
printf("\tcache = (uint16_t*) malloc(%s*sizeof(uint16_t));\n", len);
printf("\tincache = (char*) malloc(%s*sizeof(char));\n", len);
printf("\tmemset(incache, 0, %s);\n\n", len);
printf("\tprintf(\"Value of wire a: %%d\\n\", wire_a());\n\n");
printf("\tfree(cache);\n");
printf("\tfree(incache);\n");
printf("}\n");
}
int readline() {
SIGNAL in1, in2, out;
OPTYPE op;
int ch;
ch = getchar();
if(ch == EOF) {
return 0;
} else if(ch <= 'z' && ch >= 'a') {
ungetchar(ch);
in1 = wire();
} else if(ch <= '9' && ch >= '0') {
ungetchar(ch);
in1 = number();
} else if(ch == 'N') {
ungetchar(ch);
in1.type = NONE;
}
ch = getchar();
switch(ch) {
case '-': op = ASSIGN; break;
case 'A': op = AND; break;
case 'O': op = OR; break;
case 'N': op = NOT; break;
case 'L': op = LSHIFT; break;
case 'R': op = RSHIFT;
}
while((ch = getchar()) != ' ');
if(op == ASSIGN)
out = wire();
else {
ch = getchar();
if(ch <= 'z' && ch >= 'a') {
ungetchar(ch);
in2 = wire();
} else if(ch <= '9' && ch >= '0') {
ungetchar(ch);
in2 = number();
}
while((ch = getchar()) != ' ');
out = wire();
}
printfunction(op, in1, in2, out);
return 1;
}
int main() {
preamble();
while(readline());
postamble();
return 0;
}
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