tern-assembler/asm_rules.c

81 lines
2.0 KiB
C

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
void trit_flip(char *in, char *instruction) {
for (int i = 0; i<27; i++) {
in[i] = instruction[i];
}
}
int asm_rules(char *in, char *_asm){
for (int i = 0; i < 27; i++) {
_asm[i] = 0;
}
int pass = 0;
char *word = strtok(in, " ");
while(word != NULL) {
if (strcmp(word, "nop") == 0) {
//keeps the default value (0) if nop
} else if (word[0] == ';') {
//comments
break;
} else {
//cases make larger checks harder to read
if (strstr(word, "max")) {
trit_flip(_asm, "000000+00000+");
} else if (strstr(word, "min")) {
trit_flip(_asm, "000000+00000-");
} else if (strstr(word, "any")) {
trit_flip(_asm, "000000+000000");
} else if (strstr(word, "cons")) {
trit_flip(_asm, "000000+0000+-");
} else if (strstr(word, "add")) {
trit_flip(_asm, "000000+000+-+");
} else if (strstr(word, "sub")) {
trit_flip(_asm, "000000+000--+");
} else if (strstr(word, "mul")) {
trit_flip(_asm, "000000+000+0+");
} else if (strstr(word, "div")) {
trit_flip(_asm, "000000+000+0-");
} else if (strstr(word, "dec")) {
trit_flip(_asm, "000000+0000--");
} else if (strstr(word, "inc")) {
trit_flip(_asm, "000000+0000+-");
} else if (strstr(word, "iou")) {
trit_flip(_asm, "000000-0000--");
} else if (strstr(word, "ieq")) {
trit_flip(_asm, "000000-0000-+");
} else if (strstr(word, "jmp")) {
trit_flip(_asm, "000000-000000");
} else if (strstr(word, "jec")) {
trit_flip(_asm, "000000-00000+");
} else if (strstr(word, "mov")) {
trit_flip(_asm, "000000000000+");
} else if (strstr(word, "Nst")) { //underflow test
trit_flip(_asm, "-------------");
} else if (strstr(word, "Pst")) { //overflow test
trit_flip(_asm, "+++++++++++++");
}
if(word[0] == 'i') {
//integer
_asm[5] = '0';
} else if(word[0] == 'f') {
//floating
_asm[5] = '-';
}
if (word[0] == '$' || word[0] == '@') {
}
}
word = strtok(NULL, " ");
}
pass = 0;
return 0;
}