fdb6a5cfa3
This is a regression in functionality and performance, but a much better foundation for the future of the project (I think). It can run basic apps under an SSA interpreter but doesn't support some of the features required to do real 360 apps yet.
105 lines
2.1 KiB
C++
105 lines
2.1 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2013 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#ifndef ALLOY_BACKEND_IVM_INTCODE_H_
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#define ALLOY_BACKEND_IVM_INTCODE_H_
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#include <alloy/core.h>
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#include <alloy/hir/instr.h>
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#include <alloy/hir/opcodes.h>
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namespace alloy { namespace runtime { class ThreadState; } }
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namespace alloy {
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namespace backend {
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namespace ivm {
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typedef union {
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int8_t i8;
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uint8_t u8;
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int16_t i16;
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uint16_t u16;
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int32_t i32;
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uint32_t u32;
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int64_t i64;
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uint64_t u64;
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float f32;
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double f64;
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vec128_t v128;
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} Register;
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typedef struct {
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Register* rf;
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uint8_t* context;
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uint8_t* membase;
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int8_t did_carry;
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runtime::ThreadState* thread_state;
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uint64_t return_address;
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} IntCodeState;
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struct IntCode_s;
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typedef uint32_t (*IntCodeFn)(
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IntCodeState& ics, const struct IntCode_s* i);
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#define IA_RETURN 0xA0000000
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#define IA_NEXT 0xB0000000
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typedef struct IntCode_s {
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IntCodeFn intcode_fn;
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uint16_t flags;
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uint32_t dest_reg;
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union {
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struct {
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uint32_t src1_reg;
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uint32_t src2_reg;
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uint32_t src3_reg;
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// <4 bytes available>
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};
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struct {
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Register constant;
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};
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};
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// debugging info/etc
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} IntCode;
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typedef struct LabelRef_s {
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hir::Label* label;
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IntCode* instr;
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LabelRef_s* next;
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} LabelRef;
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typedef struct {
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uint32_t register_count;
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size_t intcode_count;
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Arena* intcode_arena;
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Arena* scratch_arena;
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LabelRef* label_ref_head;
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} TranslationContext;
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int TranslateIntCodes(TranslationContext& ctx, hir::Instr* i);
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} // namespace ivm
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} // namespace backend
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} // namespace alloy
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#endif // ALLOY_BACKEND_IVM_INTCODE_H_
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