diff options
Diffstat (limited to 'insnhelper.h')
| -rw-r--r-- | insnhelper.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/insnhelper.h b/insnhelper.h new file mode 100644 index 000000000..16b712e56 --- /dev/null +++ b/insnhelper.h @@ -0,0 +1,146 @@ +/********************************************************************** + + insnhelper.h - helper macros to implement each instructions + + $Author$ + $Date$ + created at: 04/01/01 15:50:34 JST + + Copyright (C) 2004-2006 Koichi Sasada + +**********************************************************************/ + +#ifndef _INSNHELPER_H_INCLUDED_ +#define _INSNHELPER_H_INCLUDED_ + +#include "vm.h" + +/* + * deal with control frame pointer + */ + +/**********************************************************/ +/* deal with stack */ +/**********************************************************/ + +#define PUSH(x) (SET_SV(x), INC_SP(1)) +#define TOPN(n) (*(GET_SP()-(n)-1)) +#define POPN(n) (INC_SP(-(n))) +#define POP() (INC_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() \ +{ \ + REG_CFP = th->cfp; \ +} + +#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)))) + +#define GET_CONTINUATION_FRAME_PTR(cfp) \ + ((struct continuation_frame *)((cfp) + CC_DIFF_WC())) + +/* 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 += ((VALUE)(USAGE_ANALYSIS_REGISTER_HELPER(1, 1, (VALUE)(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) +#define CLEAR_ENV(env) (GET_ENV_CTRL(env)->is_orphan = Qundef) + + +/**********************************************************/ +/* deal with variables */ +/**********************************************************/ + +#define GET_CURRENT_DYNAMIC(idx) (GET_DFP()[-idx]) +#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) + +/**********************************************************/ +/* 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) { \ + 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; \ +} + +/* block */ +#define GET_BLOCK_PTR() \ + ((yarv_block_t *)(GC_GUARDED_PTR_REF(GET_LFP()[0]))) + +#define CHECK_STACK_OVERFLOW(th, cfp, margin) \ + (((VALUE *)(cfp)->sp) + (margin) >= ((VALUE *)cfp)) + +/**********************************************************/ +/* deal with control flow 3: exception */ +/**********************************************************/ + + +/**********************************************************/ +/* others */ +/**********************************************************/ + +/* optimize insn */ +#define FIXNUM_2_P(a, b) ((a) & (b) & 1) +#define BASIC_OP_UNREDEFINED_P(op) ((yarv_redefined_flag & (op)) == 0) +#define HEAP_CLASS_OF(obj) RBASIC(obj)->klass + +#endif // _INSNHELPER_H_INCLUDED_ |