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emit_x64_memory: Move EmitFastmemVAddr to common file

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This commit is contained in:
merry 2022-03-26 16:49:14 +00:00
parent 18f02e2088
commit 64adc91ca2
2 changed files with 48 additions and 39 deletions
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39
src/dynarmic/backend/x64/a64_emit_x64_memory.cpp
View file

@ -302,45 +302,6 @@ FakeCall A64EmitX64::FastmemCallback(u64 rip_) {
namespace {
Xbyak::RegExp EmitFastmemVAddr(BlockOfCode& code, A64EmitContext& ctx, Xbyak::Label& abort, Xbyak::Reg64 vaddr, bool& require_abort_handling, std::optional<Xbyak::Reg64> tmp = std::nullopt) {
const size_t unused_top_bits = 64 - ctx.conf.fastmem_address_space_bits;
if (unused_top_bits == 0) {
return r13 + vaddr;
} else if (ctx.conf.silently_mirror_fastmem) {
if (!tmp) {
tmp = ctx.reg_alloc.ScratchGpr();
}
if (unused_top_bits < 32) {
code.mov(*tmp, vaddr);
code.shl(*tmp, int(unused_top_bits));
code.shr(*tmp, int(unused_top_bits));
} else if (unused_top_bits == 32) {
code.mov(tmp->cvt32(), vaddr.cvt32());
} else {
code.mov(tmp->cvt32(), vaddr.cvt32());
code.and_(*tmp, u32((1 << ctx.conf.fastmem_address_space_bits) - 1));
}
return r13 + *tmp;
} else {
if (ctx.conf.fastmem_address_space_bits < 32) {
code.test(vaddr, u32(-(1 << ctx.conf.fastmem_address_space_bits)));
code.jnz(abort, code.T_NEAR);
require_abort_handling = true;
} else {
// TODO: Consider having TEST as above but coalesce 64-bit constant in register allocator
if (!tmp) {
tmp = ctx.reg_alloc.ScratchGpr();
}
code.mov(*tmp, vaddr);
code.shr(*tmp, int(ctx.conf.fastmem_address_space_bits));
code.jnz(abort, code.T_NEAR);
require_abort_handling = true;
}
return r13 + vaddr;
}
}
template<std::size_t bitsize>
void EmitReadMemoryMov(BlockOfCode& code, int value_idx, const Xbyak::RegExp& addr) {
switch (bitsize) {

48
src/dynarmic/backend/x64/emit_x64_memory.h
View file

@ -149,6 +149,54 @@ template<>
return page + tmp;
}
template<typename EmitContext>
Xbyak::RegExp EmitFastmemVAddr(BlockOfCode& code, EmitContext& ctx, Xbyak::Label& abort, Xbyak::Reg64 vaddr, bool& require_abort_handling, std::optional<Xbyak::Reg64> tmp = std::nullopt);
template<>
[[maybe_unused]] Xbyak::RegExp EmitFastmemVAddr<A32EmitContext>(BlockOfCode&, A32EmitContext&, Xbyak::Label&, Xbyak::Reg64 vaddr, bool&, std::optional<Xbyak::Reg64>) {
return r13 + vaddr;
}
template<>
[[maybe_unused]] Xbyak::RegExp EmitFastmemVAddr<A64EmitContext>(BlockOfCode& code, A64EmitContext& ctx, Xbyak::Label& abort, Xbyak::Reg64 vaddr, bool& require_abort_handling, std::optional<Xbyak::Reg64> tmp) {
const size_t unused_top_bits = 64 - ctx.conf.fastmem_address_space_bits;
if (unused_top_bits == 0) {
return r13 + vaddr;
} else if (ctx.conf.silently_mirror_fastmem) {
if (!tmp) {
tmp = ctx.reg_alloc.ScratchGpr();
}
if (unused_top_bits < 32) {
code.mov(*tmp, vaddr);
code.shl(*tmp, int(unused_top_bits));
code.shr(*tmp, int(unused_top_bits));
} else if (unused_top_bits == 32) {
code.mov(tmp->cvt32(), vaddr.cvt32());
} else {
code.mov(tmp->cvt32(), vaddr.cvt32());
code.and_(*tmp, u32((1 << ctx.conf.fastmem_address_space_bits) - 1));
}
return r13 + *tmp;
} else {
if (ctx.conf.fastmem_address_space_bits < 32) {
code.test(vaddr, u32(-(1 << ctx.conf.fastmem_address_space_bits)));
code.jnz(abort, code.T_NEAR);
require_abort_handling = true;
} else {
// TODO: Consider having TEST as above but coalesce 64-bit constant in register allocator
if (!tmp) {
tmp = ctx.reg_alloc.ScratchGpr();
}
code.mov(*tmp, vaddr);
code.shr(*tmp, int(ctx.conf.fastmem_address_space_bits));
code.jnz(abort, code.T_NEAR);
require_abort_handling = true;
}
return r13 + vaddr;
}
}
template<typename UserConfig>
void EmitExclusiveLock(BlockOfCode& code, const UserConfig& conf, Xbyak::Reg64 pointer, Xbyak::Reg32 tmp) {
if (conf.HasOptimization(OptimizationFlag::Unsafe_IgnoreGlobalMonitor)) {