From fb2e61a435f6a9d2201d521df47c9bfd12031df3 Mon Sep 17 00:00:00 2001 From: Michael Gielda Date: Wed, 15 Sep 2021 01:47:10 +0200 Subject: [PATCH] Add Linux Unicorn patch + desc. (#2609) --- Ryujinx.Tests.Unicorn/libs/README.md | 23 ++++++++++++++++-- .../libs/linux/unicorn_fspcr.patch | 24 +++++++++++++++++++ 2 files changed, 45 insertions(+), 2 deletions(-) create mode 100644 Ryujinx.Tests.Unicorn/libs/linux/unicorn_fspcr.patch diff --git a/Ryujinx.Tests.Unicorn/libs/README.md b/Ryujinx.Tests.Unicorn/libs/README.md index bb370164..427044f9 100644 --- a/Ryujinx.Tests.Unicorn/libs/README.md +++ b/Ryujinx.Tests.Unicorn/libs/README.md @@ -1,3 +1,22 @@ -The pre-compiled dynamic libraries in this directory are licenced under the GPLv2. +# Unicorn -The source code for windows/unicorn.dll is available at: https://github.com/MerryMage/UnicornDotNet/tree/299451c02d9c810d2feca51f5e9cb6d8b2f38960 +Unicorn is a CPU simulator with bindings in many languages, including +C#/.NET. +It is used by the Ryujinx test suite for comparative testing with its built-in +CPU simulator, Armeilleure. + +## Windows + +On Windows, Unicorn is shipped as a pre-compiled dynamic library (`.dll`), licenced under the GPLv2. + +The source code for `windows/unicorn.dll` is available at: https://github.com/MerryMage/UnicornDotNet/tree/299451c02d9c810d2feca51f5e9cb6d8b2f38960 + +## Linux + +On Linux, you will first need to download Unicorn from https://github.com/unicorn-engine/unicorn. + +Then you need to patch it to expose the FSPCR register by applying `linux/unicorn_fspcr.patch` + +Then, compile Unicorn from source with its `make.sh` script. + +See https://github.com/Ryujinx/Ryujinx/pull/1433 for details. diff --git a/Ryujinx.Tests.Unicorn/libs/linux/unicorn_fspcr.patch b/Ryujinx.Tests.Unicorn/libs/linux/unicorn_fspcr.patch new file mode 100644 index 00000000..391c2fb6 --- /dev/null +++ b/Ryujinx.Tests.Unicorn/libs/linux/unicorn_fspcr.patch @@ -0,0 +1,24 @@ +diff --git a/qemu/target-arm/unicorn_arm.c b/qemu/target-arm/unicorn_arm.c +index 5ff9ebb..d4953f4 100644 +--- a/qemu/target-arm/unicorn_arm.c ++++ b/qemu/target-arm/unicorn_arm.c +@@ -101,6 +101,9 @@ int arm_reg_read(struct uc_struct *uc, unsigned int *regs, void **vals, int coun + case UC_ARM_REG_FPEXC: + *(int32_t *)value = ARM_CPU(uc, mycpu)->env.vfp.xregs[ARM_VFP_FPEXC]; + break; ++ case UC_ARM_REG_FPSCR: ++ *(int32_t *)value = vfp_get_fpscr(&ARM_CPU(uc, mycpu)->env); ++ break; + case UC_ARM_REG_IPSR: + *(uint32_t *)value = xpsr_read(&ARM_CPU(uc, mycpu)->env) & 0x1ff; + break; +@@ -175,6 +178,9 @@ int arm_reg_write(struct uc_struct *uc, unsigned int *regs, void* const* vals, i + case UC_ARM_REG_FPEXC: + ARM_CPU(uc, mycpu)->env.vfp.xregs[ARM_VFP_FPEXC] = *(int32_t *)value; + break; ++ case UC_ARM_REG_FPSCR: ++ vfp_set_fpscr(&ARM_CPU(uc, mycpu)->env, *(uint32_t *)value); ++ break; + case UC_ARM_REG_IPSR: + xpsr_write(&ARM_CPU(uc, mycpu)->env, *(uint32_t *)value, 0x1ff); + break;