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Diffstat (limited to 'vm_insnhelper.h')
-rw-r--r-- | vm_insnhelper.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/vm_insnhelper.h b/vm_insnhelper.h new file mode 100644 index 0000000000..6e931e1622 --- /dev/null +++ b/vm_insnhelper.h @@ -0,0 +1,191 @@ +/********************************************************************** + + insnhelper.h - helper macros to implement each instructions + + $Author$ + created at: 04/01/01 15:50:34 JST + + Copyright (C) 2004-2007 Koichi Sasada + +**********************************************************************/ + +#ifndef RUBY_INSNHELPER_H +#define RUBY_INSNHELPER_H + +/** + * VM Debug Level + * + * debug level: + * 0: no debug output + * 1: show instruction name + * 2: show stack frame when control stack frame is changed + * 3: show stack status + * 4: show register + * 5: + * 10: gc check + */ + +#ifndef VMDEBUG +#define VMDEBUG 0 +#endif + +#if 0 +#undef VMDEBUG +#define VMDEBUG 3 +#endif + +/* VM state version */ + +extern VALUE ruby_vm_global_state_version; +extern VALUE ruby_vm_redefined_flag; + +#define GET_VM_STATE_VERSION() (ruby_vm_global_state_version) +#define INC_VM_STATE_VERSION() \ + (ruby_vm_global_state_version = (ruby_vm_global_state_version+1) & 0x8fffffff) + +#define BOP_PLUS 0x01 +#define BOP_MINUS 0x02 +#define BOP_MULT 0x04 +#define BOP_DIV 0x08 +#define BOP_MOD 0x10 +#define BOP_EQ 0x20 +#define BOP_LT 0x40 +#define BOP_LE 0x80 +#define BOP_LTLT 0x100 +#define BOP_AREF 0x200 +#define BOP_ASET 0x400 +#define BOP_LENGTH 0x800 +#define BOP_SUCC 0x1000 +#define BOP_GT 0x2000 +#define BOP_GE 0x4000 +#define BOP_NOT 0x8000 +#define BOP_NEQ 0x10000 + +/**********************************************************/ +/* deal with stack */ +/**********************************************************/ + +#define PUSH(x) (SET_SV(x), INC_SP(1)) +#define TOPN(n) (*(GET_SP()-(n)-1)) +#define POPN(n) (DEC_SP(n)) +#define POP() (DEC_SP(1)) +#define STACK_ADDR_FROM_TOP(n) (GET_SP()-(n)) + +#define GET_TOS() (tos) /* dummy */ + +/**********************************************************/ +/* deal with registers */ +/**********************************************************/ + +#define REG_CFP (reg_cfp) +#define REG_PC (REG_CFP->pc) +#define REG_SP (REG_CFP->sp) +#define REG_LFP (REG_CFP->lfp) +#define REG_DFP (REG_CFP->dfp) + +#define RESTORE_REGS() do { \ + REG_CFP = th->cfp; \ +} while (0) + +#define REG_A reg_a +#define REG_B reg_b + +#ifdef COLLECT_USAGE_ANALYSIS +#define USAGE_ANALYSIS_REGISTER_HELPER(a, b, v) \ + (USAGE_ANALYSIS_REGISTER(a, b), (v)) +#else +#define USAGE_ANALYSIS_REGISTER_HELPER(a, b, v) (v) +#endif + +/* PC */ +#define GET_PC() (USAGE_ANALYSIS_REGISTER_HELPER(0, 0, REG_PC)) +#define SET_PC(x) (REG_PC = (USAGE_ANALYSIS_REGISTER_HELPER(0, 1, x))) +#define GET_CURRENT_INSN() (*GET_PC()) +#define GET_OPERAND(n) (GET_PC()[(n)]) +#define ADD_PC(n) (SET_PC(REG_PC + (n))) + +#define GET_PC_COUNT() (REG_PC - GET_ISEQ()->iseq_encoded) +#define JUMP(dst) (REG_PC += (dst)) + +/* FP */ +#define GET_CFP() (USAGE_ANALYSIS_REGISTER_HELPER(2, 0, REG_CFP)) +#define GET_LFP() (USAGE_ANALYSIS_REGISTER_HELPER(3, 0, REG_LFP)) +#define SET_LFP(x) (REG_LFP = (USAGE_ANALYSIS_REGISTER_HELPER(3, 1, (x)))) +#define GET_DFP() (USAGE_ANALYSIS_REGISTER_HELPER(4, 0, REG_DFP)) +#define SET_DFP(x) (REG_DFP = (USAGE_ANALYSIS_REGISTER_HELPER(4, 1, (x)))) + +/* SP */ +#define GET_SP() (USAGE_ANALYSIS_REGISTER_HELPER(1, 0, REG_SP)) +#define SET_SP(x) (REG_SP = (USAGE_ANALYSIS_REGISTER_HELPER(1, 1, (x)))) +#define INC_SP(x) (REG_SP += (USAGE_ANALYSIS_REGISTER_HELPER(1, 1, (x)))) +#define DEC_SP(x) (REG_SP -= (USAGE_ANALYSIS_REGISTER_HELPER(1, 1, (x)))) +#define SET_SV(x) (*GET_SP() = (x)) + /* set current stack value as x */ + +#define GET_SP_COUNT() (REG_SP - th->stack) + +/* instruction sequence C struct */ +#define GET_ISEQ() (GET_CFP()->iseq) + +/**********************************************************/ +/* deal with variables */ +/**********************************************************/ + +#define GET_PREV_DFP(dfp) ((VALUE *)((dfp)[0] & ~0x03)) + +#define GET_GLOBAL(entry) rb_gvar_get((struct global_entry*)entry) +#define SET_GLOBAL(entry, val) rb_gvar_set((struct global_entry*)entry, val) + +#define GET_CONST_INLINE_CACHE(dst) ((IC) * (GET_PC() + (dst) + 1)) + +/**********************************************************/ +/* deal with values */ +/**********************************************************/ + +#define GET_SELF() (USAGE_ANALYSIS_REGISTER_HELPER(5, 0, GET_CFP()->self)) + +/**********************************************************/ +/* deal with control flow 2: method/iterator */ +/**********************************************************/ + +#define COPY_CREF(c1, c2) do { \ + NODE *__tmp_c2 = (c2); \ + c1->nd_clss = __tmp_c2->nd_clss; \ + c1->nd_visi = __tmp_c2->nd_visi; \ + c1->nd_next = __tmp_c2->nd_next; \ +} while (0) + +#define CALL_METHOD(num, blockptr, flag, id, mn, recv, klass) do { \ + VALUE v = vm_call_method(th, GET_CFP(), num, blockptr, flag, id, mn, recv, klass); \ + if (v == Qundef) { \ + RESTORE_REGS(); \ + NEXT_INSN(); \ + } \ + else { \ + val = v; \ + } \ +} while (0) + +#define GET_BLOCK_PTR() \ + ((rb_block_t *)(GC_GUARDED_PTR_REF(GET_LFP()[0]))) + +/**********************************************************/ +/* deal with control flow 3: exception */ +/**********************************************************/ + + +/**********************************************************/ +/* others */ +/**********************************************************/ + +/* optimize insn */ +#define FIXNUM_2_P(a, b) ((a) & (b) & 1) +#define BASIC_OP_UNREDEFINED_P(op) ((ruby_vm_redefined_flag & (op)) == 0) +#define HEAP_CLASS_OF(obj) RBASIC(obj)->klass + +#define CALL_SIMPLE_METHOD(num, id, recv) do { \ + VALUE klass = CLASS_OF(recv); \ + CALL_METHOD(num, 0, 0, id, rb_method_node(klass, id), recv, CLASS_OF(recv)); \ +} while (0) + +#endif /* RUBY_INSNHELPER_H */ |