ref: 682b4cec8835d109e02ab5deb1c4934984fc9eb6
author: mkf <mkf>
date: Thu May 4 03:12:57 EDT 2023
import sources.
--- /dev/null
+++ b/5551a.c
@@ -1,0 +1,49 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+
+enum
+{+ NOT = 1,
+ AND,
+ XOR,
+ ADD,
+ RST, /* reset the machine state */
+ CPY, /* copy stuff from a reg or addr to another */
+ SET, /* sets mode to bool and int */
+ OUT
+};
+
+void main(int argc, char* argv[])
+{+ unsigned int a, b;
+ char string[16], *op;
+ FILE *fd = open("5551.out", O_WRONLY);+ if(fd < 0)
+ {+ fprintf(stderr, "unable to open file\n");
+ return;
+ }
+ while(scanf("%s %[^\n]", op, string) > 0) /* %s removes spaces, what did i expected? */+ {+ sscanf(string, "%u %u", &a, &b);
+ if(!strcmp(op, "NOT"))
+ printf("%u %u\n", NOT, a);+ if(!strcmp(op, "AND"))
+ printf("%u %u %u\n", AND, a, b);+ if(!strcmp(op, "XOR"))
+ printf("%u %u %u\n", XOR, a, b);+// if(!strcmp(op, "RST"))
+ // reset():
+ if(!strcmp(op, "CPY"))
+ printf("%u %u %u\n", CPY, a, b);+ if(!strcmp(op, "SET"))
+ printf("%u %u\n", SET, a);+ if(!strcmp(op, "OUT"))
+ printf("%u %u\n", OUT, a);+ if(!strcmp(op, "DIE"))
+ return;
+ }
+ return;
+}
--- /dev/null
+++ b/5551e.c
@@ -1,0 +1,85 @@
+#include <stdbool.h>
+#include <stdio.h>
+
+#define MMAX ( 1 << 8 )
+unsigned int reg[8];
+typedef struct
+{+ bool carry, overflow, nsign, sub, parity;
+ bool mode; /* 0 bool, 1 int */
+}flag_t;
+
+enum
+{+ /* logical num */
+ NOT = 1,
+ AND,
+ XOR,
+ ADD,
+ RST, /* reset the machine state */
+ CPY, /* copy stuff from a reg or addr to another */
+ SET,
+ OUT,
+
+};
+
+bool add_bit(bool a, bool b, bool cin, bool *cout)
+{+ bool out, temp;
+ temp = a & b;
+ out = ((a ^ b) | (temp & cin));
+ temp = a ^ b;
+ cout = ((a & b) | (temp & cin));
+ return temp;
+}
+
+void main()
+{+ flag_t flags;
+ char string[16];
+ unsigned int memory[MMAX], op, a, b, def = 0;
+ memory[0] = 0;
+ memory[MMAX-1] = -1;
+ while(scanf("%u %[^\n]", &op, string))+ {+ sscanf(string, "%u %u", &a, &b);
+ switch(op)
+ {+ case NOT:
+ reg[def] = !a;
+ break;
+ case AND:
+ reg[def] = a & b;
+ break;
+ case XOR:
+ reg[def] = a ^ b;
+ break;
+ case ADD:
+ reg[def] = add_bit(a, b, 0, &flags.carry);
+ break;
+ case RST:
+ // reset():
+ break;
+ case CPY:
+ reg[b] = reg[a];
+ break;
+ case SET:
+ if((a < 0) || (a > 8))
+ {+ fprintf(stderr, "out of regs\n");
+ return;
+ }
+ def = a;
+ break;
+ case OUT:
+ printf("%u\n", reg[a]);+ break;
+ default:
+ fprintf(stderr, "unkown op\n");
+ return;
+ }
+ /* clear them */
+ a = NULL, b = NULL, op = NULL;
+ string = "\0";
+ }
+}