mirror of https://git.wuffs.org/MWCC
86 lines
3.3 KiB
C
86 lines
3.3 KiB
C
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#ifndef COMPILER_OPERANDS_H
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#define COMPILER_OPERANDS_H
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#include "compiler/common.h"
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#ifdef __MWERKS__
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#pragma options align=mac68k
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#endif
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extern Float one_point_zero;
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enum OperandType {
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// Value in a register (identified by 'reg')
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OpndType_GPR = 0,
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// Uses 'reg', 'object, 'immOffset'
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OpndType_GPR_ImmOffset = 1,
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// Uses 'reg', 'regOffset'
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OpndType_GPR_Indexed = 2,
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// Value in two registers (identified by 'reg' and 'regHi')
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OpndType_GPRPair = 3,
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// Value at an absolute address (identified by 'abs_address')
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OpndType_Absolute = 4,
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// Value in a float register (identified by 'reg')
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OpndType_FPR = 5,
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// Value in a vector register (identified by 'reg')
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OpndType_VR = 6,
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// Condition value: 'reg' stores which condition register, and 'regOffset' is equal to ENOTEQU, EEQU, EGREATEREQU,
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// ELESS, ELESS or ELESSEQU
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OpndType_CRField = 7,
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// Value of a symbol (identified by 'object')
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OpndType_Symbol = 8,
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// Reference to a location (at 'reg', offset using 'object' and 'immOffset')
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OpndType_IndirectGPR_ImmOffset = 9,
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// Reference to a location (at 'reg', offset using the value of register 'regOffset')
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OpndType_IndirectGPR_Indexed = 0xA,
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// Reference to a symbol (identified by 'object')
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OpndType_IndirectSymbol = 0xB
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};
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// These are probably the same as the PCode Flags and can be unified?
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enum {
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OpndFlags_Const = 0x40,
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OpndFlags_Volatile = 0x80
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};
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struct Operand {
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enum OperandType optype;
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SInt16 reg;
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SInt16 regHi;
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SInt16 regOffset;
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SInt32 immOffset;
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SInt32 abs_address;
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Object *object;
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UInt32 flags;
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};
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extern void load_immediate(short reg, SInt32 value);
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extern void symbol_operand(Operand *op, Object *obj);
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extern void indirect(Operand *op, ENode *expr);
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extern void combine(Operand *opA, Operand *opB, short output_reg, Operand *opOut);
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extern void coerce_to_addressable(Operand *op);
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extern void Coerce_to_register(Operand *op, Type *type, short output_reg);
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extern void coerce_to_register_pair(Operand *op, Type *type, short output_reg, short output_regHi);
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extern void Coerce_to_fp_register(Operand *op, TypeIntegral *tint, short output_reg);
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extern void Coerce_to_v_register(Operand *op, TypeStruct *tstruct, short output_reg);
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extern void store(short reg, Operand *op, Type *type);
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extern void store_pair(short reg, short regHi, Operand *op, Type *type);
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extern void store_fp(short reg, Operand *op, TypeIntegral *tint);
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extern void store_v(short reg, Operand *op, TypeStruct *tstruct);
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extern void extend32(Operand *op, Type *type, short output_reg);
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extern void extend64(Operand *op, Type *type, short output_reg, short output_regHi);
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extern void load_floating_constant(short reg, TypeIntegral *type, double *data);
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extern void convert_integer_to_floating(Operand *op, Boolean is_single, short output_reg);
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extern void convert_unsigned_to_floating(Operand *op, Boolean is_single, short output_reg);
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extern void convert_floating_to_integer(Operand *op, short output_reg);
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extern void convert_floating_to_unsigned(Operand *op, short output_reg);
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extern void extract_bitfield(Operand *input_op, TypeBitfield *tbitfield, short output_reg, Operand *output_op);
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extern void insert_bitfield(short reg, Operand *op, TypeBitfield *tbitfield);
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extern void load_address(short dest_reg, Operand *op);
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#ifdef __MWERKS__
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#pragma options align=reset
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#endif
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#endif
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