MWCC/includes/compiler/InlineAsm.h

#ifndef COMPILER_INLINEASM_H
#define COMPILER_INLINEASM_H

#include "compiler/common.h"
#include "compiler/PCodeInfo.h"

#ifdef __MWERKS__
#pragma options align=mac68k
#endif
typedef struct IAMnemonic {
    char *name;
    UInt32 x4;
    char *format;
    UInt32 cpu;
    UInt32 x10;
} IAMnemonic;

typedef struct IARegister {
    char *name;
    char rclass;
    SInt32 num;
    Object *object;
} IARegister;

typedef enum IAOperandType {
    IAOpnd_0,
    IAOpnd_Imm,
    IAOpnd_Reg,
    IAOpnd_3,
    IAOpnd_4,
    IAOpnd_Lab,
    IAOpnd_6,
    IAOpnd_7,
    IAOpnd_LabDiff
} IAOperandType;
typedef struct IAOperand {
    IAOperandType type;
    Boolean negated;
    union {
        // type 1
        struct {
            SInt32 value;
        } imm;
        // type 2
        struct {
            SInt32 num;
            Object *object;
            short effect;
            short rclass;
        } reg;
        // type 3, 4
        struct {
            SInt32 offset;
            Object *obj;
            short unk;
        } obj;
        // type 5
        struct {
            CLabel *label;
        } lab;
        // type 6
        struct {
            SInt32 num;
            UInt8 unk4;
            short effect;
            short rclass;
        } unk6;
        // type 7
        struct {
            SInt32 value;
            Boolean unk1;
            short unk2;
            short unk3;
        } unk7;
        // type 8
        struct {
            CLabel *label1;
            CLabel *label2;
            SInt32 offset;
        } labdiff;
    } u;
} IAOperand;

typedef enum IAExprType {
    IAExpr_0,
    IAExpr_1,
    IAExpr_2,
    IAExpr_3,
    IAExpr_4,
    IAExpr_5,
    IAExpr_6,
    IAExpr_7,
    IAExpr_8,
    IAExpr_9,
    IAExpr_10
} IAExprType;

typedef struct IAExpr {
    IAExprType type;
    UInt8 flags;
    short reg;
    SInt32 value;
    Object *object;
    Object *xC;
    Object *x10;
    CLabel *label;
    CLabel *x18;
} IAExpr;

enum {
    IAFlag1 = 1,
    IAFlag2 = 2
};
enum {
    IAFlagsB_1 = 1,
    IAFlagsB_2 = 2,
    IAFlagsB_4 = 4,
    IAFlagsB_8 = 8,
    IAFlagsB_10 = 0x10,
    IAFlagsB_20 = 0x20,
    IAFlagsB_40 = 0x40
};

typedef struct InlineAsm {
    Opcode opcode;
    unsigned char flags;
    unsigned char flags2;
    short argcount;
    IAOperand args[0];
} InlineAsm;

typedef struct IALookupResult {
    HashNameNode *name;
    CLabel *label;
    Object *object;
    Type *type;
    UInt32 value;
    Boolean has_value;
} IALookupResult;

typedef struct IAEntryPoint {
    short x0;
    char x2;
    int x4;
    Object *x8;
    SInt32 size;
} IAEntryPoint;

typedef enum IAEffectType {
    IAEffect_0,
    IAEffect_1,
    IAEffect_2,
    IAEffect_3,
    IAEffect_4
} IAEffectType;
typedef struct IAEffect {
    IAEffectType type;
    Object *object;
    SInt32 offset;
    SInt32 size;
} IAEffect;

typedef struct IAEffects {
    Boolean x0;
    Boolean x1;
    Boolean x2;
    Boolean x3;
    Boolean x4;
    Boolean x5;
    SInt32 numoperands;
    SInt32 numlabels;
    IAEffect operands[16];
    CLabel *labels[16];
} IAEffects;

#ifdef __MWERKS__
#pragma options align=reset
#endif

extern int backtracking;
extern jmp_buf backtrack;
extern jmp_buf InlineAsm_assemblererror;

extern int allow_array_expressions;

extern void AssemblerError(void);
extern void InlineAsm_SyntaxError(short code);
extern CLabel *InlineAsm_LookupLabel(HashNameNode *name);
extern CLabel *InlineAsm_DeclareLabel(HashNameNode *name);
extern Boolean InlineAsm_LookupSymbolOrTag(HashNameNode *name, IALookupResult *result, Boolean allow_tag);
extern Boolean InlineAsm_LookupSymbol(HashNameNode *name, IALookupResult *result);
extern SInt32 InlineAsm_StructMemberOffset(Type *type);
extern SInt32 InlineAsm_StructArrayMemberOffset(Type *type);
extern SInt32 InlineAsm_StructPointerMemberOffset(Type *type);
extern SInt32 InlineAsm_ConstantExpression(void);
extern HashNameNode *MakeLocalLabel(CInt64 num);
extern void InlineAsm_ScanStatements(volatile short endToken);
extern void InlineAsm_ScanFunction(volatile short endToken);
extern void InlineAsm_Assemble(void);
extern void InlineAsm_PackAsmStatement(Statement *stmt, Statement *first, void **output, SInt32 *outsize);
extern void InlineAsm_UnpackAsmStatement(Statement *stmt, CLabel **labelArray, Boolean flag, void *data, SInt32 size);
extern void InlineAsm_CheckLocalUsage(Statement *stmt);
extern CLabel *InlineAsm_GetReferencedLabel(Statement *stmt);
extern CLabel *InlineAsm_GetReferencedLabel2(Statement *stmt);
extern Object *InlineAsm_GetObjectOffset(InlineAsm *ia, SInt32 index, SInt32 *offset);
extern char *InlineAsm_DumpStatement(Statement *stmt);

// unknown name
inline void InlineAsm_InitExpr5(IAExpr *expr, SInt32 value) {
    expr->type = IAExpr_5;
    expr->flags = 0;
    expr->value = value;
    expr->reg = 0;
    expr->object = NULL;
    expr->xC = NULL;
    expr->x10 = NULL;
    expr->label = NULL;
    expr->x18 = NULL;
}

// unknown name
inline int InlineAsm_CheckExpr(IAExpr *expr) {
    return (expr->xC == NULL && expr->object == NULL && expr->label == NULL);
}

// unknown name
inline SInt32 InlineAsm_GetExprValue(IAExpr *expr) {
    switch (expr->type) {
        case IAExpr_8:
            return HIGH_PART(expr->value);
        case IAExpr_7:
            return (short) (expr->value >> 16);
        case IAExpr_6:
            return (short) expr->value;
        default:
            return expr->value;
    }
}

#endif