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committed op.stack

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--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%4085
This commit is contained in:
David Anderson 2006-09-20 21:23:48 +00:00
parent ae9c2187cb
commit fb39f34d4b
3 changed files with 46 additions and 1 deletions
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21
sourcepawn/vm/jit/x86/jit_x86.cpp
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@ -1199,6 +1199,22 @@ inline void WriteOp_Sctrl(JitWriter *jit)
}
}
inline void WriteOp_Stack(JitWriter *jit)
{
//mov edx, ebp
//add ebp, <val>
//sub edx, edi
cell_t val = jit->read_cell();
IA32_Mov_Rm_Reg(jit, AMX_REG_ALT, AMX_REG_STK, MOD_REG);
if (val < SCHAR_MAX && val > SCHAR_MIN)
IA32_Add_Rm_Imm8(jit, AMX_REG_STK, (jit_int8_t)val, MOD_REG);
else
IA32_Add_Rm_Imm32(jit, AMX_REG_STK, val, MOD_REG);
IA32_Sub_Rm_Reg(jit, AMX_REG_ALT, AMX_REG_DAT, MOD_REG);
Write_CheckMargin_Stack(jit);
}
/*************************************************
*************************************************
* JIT PROPER ************************************
@ -1898,6 +1914,11 @@ IPluginContext *JITX86::CompileToContext(ICompilation *co, int *err)
WriteOp_Sctrl(jit);
break;
}
case OP_STACK:
{
WriteOp_Stack(jit);
break;
}
default:
{
AbortCompilation(co);

18
sourcepawn/vm/jit/x86/opcode_helpers.cpp
View File

@ -201,6 +201,24 @@ void Write_Check_VerifyAddr(JitWriter *jit, jit_uint8_t reg, bool firstcall)
}
}
void Write_CheckMargin_Stack(JitWriter *jit)
{
/* this is small, so we always inline it.
*/
//cmp ebp, [esi+stp]
//jle :continue
IA32_Cmp_Reg_Rm_Disp8(jit, AMX_REG_STK, AMX_REG_INFO, AMX_INFO_STACKTOP);
jitoffs_t jmp = IA32_Jump_Cond_Imm8(jit, CC_LE, 0);
if (!(((CompData *)jit->data)->inline_level & JIT_INLINE_ERRORCHECKS))
{
//sub esp, 4 - correct stack for returning to non-inlined JIT
IA32_Sub_Rm_Imm8(jit, REG_ESP, 4, MOD_REG);
}
Write_Error(jit, SP_ERR_STACKMIN);
//continue:
IA32_Send_Jump8_Here(jit, jmp);
}
void Macro_PushN_Addr(JitWriter *jit, int i)
{
//push eax

8
sourcepawn/vm/jit/x86/opcode_helpers.h
View File

@ -22,6 +22,12 @@ void Write_Error(JitWriter *jit, int error);
*/
void Write_Check_VerifyAddr(JitWriter *jit, jit_uint8_t reg, bool firstcall);
/**
* Verifies stack margins.
*/
void Write_CheckMargin_Stack(JitWriter *jit);
/**
* These are for writing the PushN opcodes.
*/
@ -76,7 +82,7 @@ typedef enum
OP_PUSH_S, //DONE
OP_POP_PRI, //DONE
OP_POP_ALT, //DONE
OP_STACK,
OP_STACK, //DONE
OP_HEAP,
OP_PROC, //DONE
OP_RET,