Rename some directories, add initial chernobyl emu stuff

17-Chernobyl/Code/inc/chernobyl.h

@@ -0,0 +1,43 @@
+#ifndef CHERNOBYL_H
+#define CHERNOBYL_H
+
+#include "chernobyl_types.h"
+
+u16 _main ();
+u16 walk (u16 r15);
+u16 run ();
+
+u16 *create_hash_table (u16 r15, u16 r14);
+u16 add_to_table (u16 r15, u16 r14, u16 r13);
+// Return address of a buffer from the table
+// r15 = buffer address. r14
+u16 get_from_table (void *r15, char *r14);
+u16 hash (char *str);
+u16 rehash (u16 r15, u16 r14);
+
+// Strings, named after the position of the first character in memory
+// Strings associated with <walk>
+#define s_4566 "\r\r"
+#define s_4569 "%x [alloc] [p %x] [n %x] [s %x]"
+#define s_4588 " "
+#define s_458b " {%x} [ "
+#define s_4594 "%x "
+#define s_4599 "%x [freed] [p %x] [n %x] [s %x]"
+
+// Strings associated with <malloc>
+#define s_465e "Heap exhausted; aborting."
+
+// Strings associated with <run>
+#define s_4a38 "Welcome to the lock controller."
+#define s_4a58 "You can open the door by entering 'access [your name] [pin]'"
+#define s_4a95 ""
+#define s_4a96 "No such box."
+#define s_4aa3 "Access granted."
+#define s_4ab3 "Access granted; but account not activated."
+#define s_4ade "Aceess denied" // [sic]
+#define s_4aec "Can not have a pin with high bit set."
+#define s_4b12 "User already has an account."
+#define s_4b2f "Adding user account %s with pin %x."
+#define s_4b54 "Invalid command."
+
+#endif

17-Chernobyl/Code/inc/chernobyl_stdlib.h

@@ -0,0 +1,21 @@
+#ifndef CHERNOBYL_STDLIB_H
+#define CHERNOBYL_STDLIB_H
+
+#include "chernobyl_types.h"
+
+// Standard library functions
+//   These use MSPGCC calling convention:
+//   https://www.ti.com/lit/an/slaa664/slaa664.pdf?ts=1659422621072
+//   ( Or see https://nhivp.github.io/msp430-gcc/2018-07-20/function-calling-convention )
+void *_malloc (u16 size);
+void _free (void *ptr);
+u16 _putchar (char c);
+i16 _getchar ();
+void _puts (const char *s);
+void _getsn (char *__restrict buf, u16 length);
+int _strcmp (const char *s1, const char *s2);
+void INT (u16 interrupt);
+
+void swpb (u16 *word);
+
+#endif

17-Chernobyl/Code/inc/chernobyl_types.h

@@ -0,0 +1,32 @@
+#ifndef CHERNOBYL_TYPES_H
+#define CHERNOBYL_TYPES_H
+
+#include <stdint.h>
+
+typedef uint16_t u16;
+typedef int16_t i16;
+typedef uint8_t u8;
+typedef int8_t i8;
+
+typedef struct registers {
+   // Registers = initial_state
+   u16 sp; // stack pointer
+   u16 sr; // status register
+   // General-purpose registers
+   //   Caller-saved registers
+   u16 r4;  // GPR 4
+   u16 r5;  // GPR 5
+   u16 r6;  // GPR 6
+   u16 r7;  // GPR 7
+   u16 r8;  // GPR 8
+   u16 r9;  // GPR 9
+   u16 r10; // GPR 10
+   u16 r11; // GPR 11
+   //   Callee-saved registers / function arguments / return value(s)
+   u16 r12; // GPR 12 ; arg 3
+   u16 r13; // GPR 13 ; arg 2
+   u16 r14; // GPR 14 ; arg 1
+   u16 r15; // GPR 15 ; arg 0
+} re;
+
+#endif