diff options
Diffstat (limited to 'bytecode.c')
-rw-r--r-- | bytecode.c | 32 |
1 files changed, 31 insertions, 1 deletions
@@ -3,9 +3,39 @@ #include <stdlib.h> #include "bytecode.h" -#include "opcode.h" #include "jv_alloc.h" +// flags, length +#define NONE 0, 1 +#define CONSTANT OP_HAS_CONSTANT, 2 +#define VARIABLE (OP_HAS_VARIABLE | OP_HAS_BINDING), 3 +#define BRANCH OP_HAS_BRANCH, 2 +#define CFUNC (OP_HAS_CFUNC | OP_HAS_BINDING), 3 +#define UFUNC (OP_HAS_UFUNC | OP_HAS_BINDING | OP_IS_CALL_PSEUDO), 4 +#define DEFINITION (OP_IS_CALL_PSEUDO | OP_HAS_BINDING), 0 +#define CLOSURE_REF_IMM (OP_IS_CALL_PSEUDO | OP_HAS_BINDING), 2 + +#define OP(name, imm, in, out) \ + {name, #name, imm, in, out}, + +static const struct opcode_description opcode_descriptions[] = { +#include "opcode_list.h" +}; + +static const struct opcode_description invalid_opcode_description = { + -1, "#INVALID", 0, 0, 0, 0 +}; + + +const struct opcode_description* opcode_describe(opcode op) { + if ((int)op >= 0 && (int)op < NUM_OPCODES) { + return &opcode_descriptions[op]; + } else { + return &invalid_opcode_description; + } +} + + static int bytecode_operation_length(uint16_t* codeptr) { int length = opcode_describe(*codeptr)->length; if (*codeptr == CALL_JQ) { |