bytecode vm start, can print constants currently

1 files changed, 42 insertions, 0 deletions

diff --git a/vm.h b/vm.h
new file mode 100644
index 0000000..7f76e05
--- /dev/null
+++ b/vm.h
@@ -0,0 +1,42 @@
+#ifndef _vm_h
+#define _vm_h
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "val.h"
+
+void *M(void *p, size_t sz);
+
+typedef struct {
+	// bytecode
+	size_t blen;
+	size_t bcap;
+	uint8_t *b;
+	// constants
+	size_t clen;
+	size_t ccap;
+	Val *c;
+} Chunk;
+Chunk chunk_new();
+size_t chunk_wbc(Chunk *ch, uint8_t byte);
+size_t chunk_wconst(Chunk *ch, Val v);
+
+#define STACKSIZE 128
+typedef struct {
+	Chunk *ch;
+	size_t ip;
+	Val stack[STACKSIZE];
+	size_t sp;
+} Vm;
+Vm vm_new(Chunk *ch);
+
+typedef enum {
+	OP_RET,
+	OP_LOADK,
+	OP_PRINT,
+} Op;
+
+
+#endif