mirror of
https://github.com/UberGames/lilium-voyager.git
synced 2024-12-13 05:31:29 +00:00
191 lines
3.7 KiB
C
191 lines
3.7 KiB
C
/*
|
|
===========================================================================
|
|
Copyright (C) 1999-2005 Id Software, Inc.
|
|
|
|
This file is part of Quake III Arena source code.
|
|
|
|
Quake III Arena source code is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the License,
|
|
or (at your option) any later version.
|
|
|
|
Quake III Arena source code is distributed in the hope that it will be
|
|
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Quake III Arena source code; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
#include "q_shared.h"
|
|
#include "qcommon.h"
|
|
|
|
// don't change, this is hardcoded into x86 VMs, opStack protection relies
|
|
// on this
|
|
#define OPSTACK_SIZE 1024
|
|
#define OPSTACK_MASK (OPSTACK_SIZE-1)
|
|
|
|
// don't change
|
|
// Hardcoded in q3asm an reserved at end of bss
|
|
#define PROGRAM_STACK_SIZE 0x10000
|
|
#define PROGRAM_STACK_MASK (PROGRAM_STACK_SIZE-1)
|
|
|
|
typedef enum {
|
|
OP_UNDEF,
|
|
|
|
OP_IGNORE,
|
|
|
|
OP_BREAK,
|
|
|
|
OP_ENTER,
|
|
OP_LEAVE,
|
|
OP_CALL,
|
|
OP_PUSH,
|
|
OP_POP,
|
|
|
|
OP_CONST,
|
|
OP_LOCAL,
|
|
|
|
OP_JUMP,
|
|
|
|
//-------------------
|
|
|
|
OP_EQ,
|
|
OP_NE,
|
|
|
|
OP_LTI,
|
|
OP_LEI,
|
|
OP_GTI,
|
|
OP_GEI,
|
|
|
|
OP_LTU,
|
|
OP_LEU,
|
|
OP_GTU,
|
|
OP_GEU,
|
|
|
|
OP_EQF,
|
|
OP_NEF,
|
|
|
|
OP_LTF,
|
|
OP_LEF,
|
|
OP_GTF,
|
|
OP_GEF,
|
|
|
|
//-------------------
|
|
|
|
OP_LOAD1,
|
|
OP_LOAD2,
|
|
OP_LOAD4,
|
|
OP_STORE1,
|
|
OP_STORE2,
|
|
OP_STORE4, // *(stack[top-1]) = stack[top]
|
|
OP_ARG,
|
|
|
|
OP_BLOCK_COPY,
|
|
|
|
//-------------------
|
|
|
|
OP_SEX8,
|
|
OP_SEX16,
|
|
|
|
OP_NEGI,
|
|
OP_ADD,
|
|
OP_SUB,
|
|
OP_DIVI,
|
|
OP_DIVU,
|
|
OP_MODI,
|
|
OP_MODU,
|
|
OP_MULI,
|
|
OP_MULU,
|
|
|
|
OP_BAND,
|
|
OP_BOR,
|
|
OP_BXOR,
|
|
OP_BCOM,
|
|
|
|
OP_LSH,
|
|
OP_RSHI,
|
|
OP_RSHU,
|
|
|
|
OP_NEGF,
|
|
OP_ADDF,
|
|
OP_SUBF,
|
|
OP_DIVF,
|
|
OP_MULF,
|
|
|
|
OP_CVIF,
|
|
OP_CVFI
|
|
} opcode_t;
|
|
|
|
|
|
|
|
typedef int vmptr_t;
|
|
|
|
typedef struct vmSymbol_s {
|
|
struct vmSymbol_s *next;
|
|
int symValue;
|
|
int profileCount;
|
|
char symName[1]; // variable sized
|
|
} vmSymbol_t;
|
|
|
|
#define VM_OFFSET_PROGRAM_STACK 0
|
|
#define VM_OFFSET_SYSTEM_CALL 4
|
|
|
|
struct vm_s {
|
|
// DO NOT MOVE OR CHANGE THESE WITHOUT CHANGING THE VM_OFFSET_* DEFINES
|
|
// USED BY THE ASM CODE
|
|
int programStack; // the vm may be recursively entered
|
|
intptr_t (*systemCall)( intptr_t *parms );
|
|
|
|
//------------------------------------
|
|
|
|
char name[MAX_QPATH];
|
|
|
|
// for dynamic linked modules
|
|
void *dllHandle;
|
|
intptr_t (QDECL *entryPoint)( int callNum, ... );
|
|
void (*destroy)(vm_t* self);
|
|
|
|
// for interpreted modules
|
|
qboolean currentlyInterpreting;
|
|
|
|
qboolean compiled;
|
|
byte *codeBase;
|
|
int entryOfs;
|
|
int codeLength;
|
|
|
|
intptr_t *instructionPointers;
|
|
int instructionCount;
|
|
|
|
byte *dataBase;
|
|
int dataMask;
|
|
|
|
int stackBottom; // if programStack < stackBottom, error
|
|
|
|
int numSymbols;
|
|
struct vmSymbol_s *symbols;
|
|
|
|
int callLevel; // counts recursive VM_Call
|
|
int breakFunction; // increment breakCount on function entry to this
|
|
int breakCount;
|
|
|
|
byte *jumpTableTargets;
|
|
int numJumpTableTargets;
|
|
};
|
|
|
|
|
|
extern vm_t *currentVM;
|
|
extern int vm_debugLevel;
|
|
|
|
void VM_Compile( vm_t *vm, vmHeader_t *header );
|
|
int VM_CallCompiled( vm_t *vm, int *args );
|
|
|
|
void VM_PrepareInterpreter( vm_t *vm, vmHeader_t *header );
|
|
int VM_CallInterpreted( vm_t *vm, int *args );
|
|
|
|
vmSymbol_t *VM_ValueToFunctionSymbol( vm_t *vm, int value );
|
|
int VM_SymbolToValue( vm_t *vm, const char *symbol );
|
|
const char *VM_ValueToSymbol( vm_t *vm, int value );
|
|
void VM_LogSyscalls( int *args );
|