From 968ebac00183b2d015be89349d10c4ee96664e47 Mon Sep 17 00:00:00 2001 From: Kazuaki Tanaka Date: Tue, 20 Sep 2016 23:07:28 +0000 Subject: Bytecode decoder support, MRB_BYTECODE_DECODE_OPTION --- include/mruby.h | 4 ++++ src/vm.c | 13 ++++++++++--- 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/include/mruby.h b/include/mruby.h index 63c0fca3d..57121fecf 100644 --- a/include/mruby.h +++ b/include/mruby.h @@ -176,6 +176,10 @@ typedef struct mrb_state { void (*debug_op_hook)(struct mrb_state* mrb, struct mrb_irep *irep, mrb_code *pc, mrb_value *regs); #endif +#ifdef MRB_BYTECODE_DECODE_OPTION + void (*bytecode_decoder)(struct mrb_state* mrb, mrb_code *code); +#endif + struct RClass *eException_class; struct RClass *eStandardError_class; struct RObject *nomem_err; /* pre-allocated NoMemoryError */ diff --git a/src/vm.c b/src/vm.c index cf8bae723..d0c86c6c7 100644 --- a/src/vm.c +++ b/src/vm.c @@ -719,13 +719,20 @@ argnum_error(mrb_state *mrb, mrb_int num) #define CODE_FETCH_HOOK(mrb, irep, pc, regs) #endif +#ifdef MRB_BYTECODE_DECODE_OPTION +#define BYTECODE_DECODER(x) if( (mrb)->bytecode_decoder ) (mrb)->bytecode_decoder((mrb), (x)) +#else +#define BYTECODE_DECODER(x) (x); +#endif + + #if defined __GNUC__ || defined __clang__ || defined __INTEL_COMPILER #define DIRECT_THREADED #endif #ifndef DIRECT_THREADED -#define INIT_DISPATCH for (;;) { i = *pc; CODE_FETCH_HOOK(mrb, irep, pc, regs); switch (GET_OPCODE(i)) { +#define INIT_DISPATCH for (;;) { i = BYTECODE_DECODER(*pc); CODE_FETCH_HOOK(mrb, irep, pc, regs); switch (GET_OPCODE(i)) { #define CASE(op) case op: #define NEXT pc++; break #define JUMP break @@ -735,8 +742,8 @@ argnum_error(mrb_state *mrb, mrb_int num) #define INIT_DISPATCH JUMP; return mrb_nil_value(); #define CASE(op) L_ ## op: -#define NEXT i=*++pc; CODE_FETCH_HOOK(mrb, irep, pc, regs); goto *optable[GET_OPCODE(i)] -#define JUMP i=*pc; CODE_FETCH_HOOK(mrb, irep, pc, regs); goto *optable[GET_OPCODE(i)] +#define NEXT i=BYTECODE_DECODER(*++pc); CODE_FETCH_HOOK(mrb, irep, pc, regs); goto *optable[GET_OPCODE(i)] +#define JUMP i=BYTECODE_DECODER(*pc); CODE_FETCH_HOOK(mrb, irep, pc, regs); goto *optable[GET_OPCODE(i)] #define END_DISPATCH -- cgit v1.2.3