Add ppc32 jit architecture to the build system.

Only unstable mips64 jit is supported.
Originaly from an older unknown unstable version.
It compiles but is unusable, with "TLB exception" messages in the cpu log.

cmake/dependencies.cmake

@@ -74,27 +74,41 @@ int main (void) { return 0; }
 set_cmake_required ()
 list ( INSERT CMAKE_REQUIRED_FLAGS 0 -m32 )
 check_c_source_compiles ( "${_code}" ARCH_X86 )
+set ( _code "
+#if defined(__powerpc) || defined(__powerpc__) || defined(_M_PPC) || defined(_ARCH_PPC)
+int main (void) { return 0; }
+#else
+#error cmake_FAIL
+#endif
+" )
+set_cmake_required ()
+list ( INSERT CMAKE_REQUIRED_FLAGS 0 -m32 )
+check_c_source_compiles ( "${_code}" ARCH_PPC32 )
 if ( ARCH_AMD64 )
    set ( _default "amd64" )
 elseif ( ARCH_X86 )
    set ( _default "x86" )
+elseif ( ARCH_PPC32 )
+   set ( _default "ppc32" )
 else ()
    set ( _default "nojit" )
 endif ()
-set ( DYNAMIPS_ARCH "${_default}" CACHE STRING "Target architecture (amd64;x86;nojit)" )
-set_property ( CACHE DYNAMIPS_ARCH PROPERTY STRINGS "amd64" "x86" "nojit" )
+set ( DYNAMIPS_ARCH "${_default}" CACHE STRING "Target architecture (amd64;x86;ppc32;nojit)" )
+set_property ( CACHE DYNAMIPS_ARCH PROPERTY STRINGS "amd64" "x86" "ppc32" "nojit" )
 if ( NOT DYNAMIPS_ARCH )
    set ( DYNAMIPS_ARCH "${_default}" )
 endif ()
 if ( "amd64" STREQUAL "${DYNAMIPS_ARCH}" AND ARCH_AMD64 )
    list ( INSERT DYNAMIPS_FLAGS 0 -m64 )
 elseif ( "x86" STREQUAL "${DYNAMIPS_ARCH}" AND ARCH_X86 )
    list ( INSERT DYNAMIPS_FLAGS 0 -m32 )
+elseif ( "ppc32" STREQUAL "${DYNAMIPS_ARCH}" AND ARCH_PPC32 )
+   list ( INSERT DYNAMIPS_FLAGS 0 -m32 )
 elseif ( NOT "nojit" STREQUAL "${DYNAMIPS_ARCH}" )
-   print_variables ( ARCH_AMD64 ARCH_X86 DYNAMIPS_ARCH )
+   print_variables ( ARCH_AMD64 ARCH_X86 ARCH_PPC32 DYNAMIPS_ARCH )
    message ( FATAL_ERROR "cannot build target arch DYNAMIPS_ARCH=${DYNAMIPS_ARCH}" )
 endif ()
-print_variables ( ARCH_AMD64 ARCH_X86 DYNAMIPS_ARCH )
+print_variables ( ARCH_AMD64 ARCH_X86 ARCH_PPC32 DYNAMIPS_ARCH )
 
 # Compiler flags
 foreach ( _flag

common/ppc32_ppc32_trans.c

@@ -0,0 +1,2 @@
+/* not supported */
+#include "ppc32_nojit_trans.c"

common/ppc32_ppc32_trans.h

@@ -0,0 +1,2 @@
+/* not supported */
+#include "ppc32_nojit_trans.h"

stable/CMakeLists.txt

@@ -269,6 +269,20 @@ maybe_rename_to_dynamips ( dynamips_x86_stable )
 install_executable ( dynamips_x86_stable )
 endif ()
 
+# dynamips_ppc32_stable
+if ( "ppc32" STREQUAL "${DYNAMIPS_ARCH}" )
+add_compile_options( -Wa,-mregnames ) # allow powerpc register names
+add_executable ( dynamips_ppc32_stable
+   ${_files}
+   "${LOCAL}/mips64_ppc32_trans.c"
+   "${COMMON}/ppc32_ppc32_trans.c"
+   )
+add_dependencies ( dynamips_ppc32_stable ${_dependencies} )
+target_link_libraries ( dynamips_ppc32_stable ${DYNAMIPS_LIBRARIES} )
+maybe_rename_to_dynamips ( dynamips_ppc32_stable )
+install_executable ( dynamips_ppc32_stable )
+endif ()
+
 # dynamips_nojit_stable
 if ( "nojit" STREQUAL "${DYNAMIPS_ARCH}" )
 add_executable ( dynamips_nojit_stable

stable/mips64_ppc32_trans.c

@@ -0,0 +1,2 @@
+/* not supported */
+#include "mips64_nojit_trans.c"

stable/mips64_ppc32_trans.h

@@ -0,0 +1,2 @@
+/* not supported */
+#include "mips64_nojit_trans.h"

unstable/CMakeLists.txt

@@ -224,6 +224,20 @@ maybe_rename_to_dynamips ( dynamips_x86_unstable )
 install_executable ( dynamips_x86_unstable )
 endif ()
 
+# dynamips_ppc32_unstable
+if ( "ppc32" STREQUAL "${DYNAMIPS_ARCH}" )
+add_compile_options( -Wa,-mregnames ) # allow powerpc register names
+add_executable ( dynamips_ppc32_unstable
+   ${_files}
+   "${LOCAL}/mips64_ppc32_trans.c"
+   "${COMMON}/ppc32_ppc32_trans.c"
+   )
+add_dependencies ( dynamips_ppc32_unstable ${_dependencies} )
+target_link_libraries ( dynamips_ppc32_unstable ${DYNAMIPS_LIBRARIES} -mregnames )
+maybe_rename_to_dynamips ( dynamips_ppc32_unstable )
+install_executable ( dynamips_ppc32_unstable )
+endif ()
+
 # dynamips_nojit_unstable
 if ( "nojit" STREQUAL "${DYNAMIPS_ARCH}" )
 add_executable ( dynamips_nojit_unstable