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Migrate PPU to post-process execution model

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kd-11 2024-08-04 18:33:28 +03:00 • committed by kd-11
parent a976ac3353
commit 34549445a8
5 changed files with 58 additions and 72 deletions
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7
rpcs3/Emu/Cell/PPUThread.cpp
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@ -291,6 +291,13 @@ const auto ppu_gateway = build_function_asm<void(*)(ppu_thread*)>("ppu_gateway",
// and https://developer.arm.com/documentation/den0024/a/The-ABI-for-ARM-64-bit-Architecture/Register-use-in-the-AArch64-Procedure-Call-Standard/Parameters-in-general-purpose-registers
// for AArch64 calling convention
// PPU function argument layout:
// x19 = m_exec
// x20 = m_thread,
// x21 = seg0
// x22 = m_base
// x23 - x25 = gpr[0] - gpr[3]
// Push callee saved registers to the hv context
// Assume our LLVM compiled code is unsafe and can clobber our stack. GHC on aarch64 treats stack as scratch.
// We also want to store the register context at a fixed place so we can read the hypervisor state from any lcoation.