Merge pull request #5 from 86Box/master

Rebase to master

Author: akmed772

CMakeLists.txt

@@ -132,13 +132,18 @@ option(RTMIDI       "RtMidi"
 option(FLUIDSYNTH   "FluidSynth"                                                 ON)
 option(MUNT         "MUNT"                                                       ON)
 option(VNC          "VNC renderer"                                               OFF)
-option(NEW_DYNAREC  "Use the PCem v15 (\"new\") dynamic recompiler"              OFF)
 option(MINITRACE    "Enable Chrome tracing using the modified minitrace library" OFF)
 option(GDBSTUB      "Enable GDB stub server for debugging"                       OFF)
 option(DEV_BRANCH   "Development branch"                                         OFF)
 option(DISCORD      "Discord Rich Presence support"                              ON)
 option(DEBUGREGS486 "Enable debug register opeartion on 486+ CPUs"               OFF)
 
+if((ARCH STREQUAL "arm64") OR (ARCH STREQUAL "arm"))
+    set(NEW_DYNAREC ON)
+else()
+    option(NEW_DYNAREC "Use the PCem v15 (\"new\") dynamic recompiler" OFF)
+endif()
+
 if(WIN32)
     set(QT ON)
     option(CPPTHREADS "C++11 threads" OFF)

src/CMakeLists.txt

@@ -223,7 +223,6 @@ elseif(APPLE AND NOT QT)
     COMPONENT Runtime)
 endif()
 
-
 # Install the PDB file on Windows builds
 if(MSVC)
     # CMake fully supports PDB files on MSVC-compatible compilers

src/codegen_new/codegen_backend_x86-64.c

@@ -315,13 +315,19 @@ codegen_backend_init(void)
 #    endif
     host_x86_CALL(block, (void *) x86gpf);
     codegen_exit_rout = &codeblock[block_current].data[block_pos];
+#ifdef _WIN64
     host_x86_ADD64_REG_IMM(block, REG_RSP, 0x38);
+#else
+    host_x86_ADD64_REG_IMM(block, REG_RSP, 0x48);
+#endif
     host_x86_POP(block, REG_R15);
     host_x86_POP(block, REG_R14);
     host_x86_POP(block, REG_R13);
     host_x86_POP(block, REG_R12);
+#ifdef _WIN64
     host_x86_POP(block, REG_RDI);
     host_x86_POP(block, REG_RSI);
+#endif
     host_x86_POP(block, REG_RBP);
     host_x86_POP(block, REG_RDX);
     host_x86_RET(block);
@@ -346,33 +352,45 @@ codegen_backend_prologue(codeblock_t *block)
     block_pos = BLOCK_START; /*Entry code*/
     host_x86_PUSH(block, REG_RBX);
     host_x86_PUSH(block, REG_RBP);
+#ifdef _WIN64
     host_x86_PUSH(block, REG_RSI);
     host_x86_PUSH(block, REG_RDI);
+#endif
     host_x86_PUSH(block, REG_R12);
     host_x86_PUSH(block, REG_R13);
     host_x86_PUSH(block, REG_R14);
     host_x86_PUSH(block, REG_R15);
+#ifdef _WIN64
     host_x86_SUB64_REG_IMM(block, REG_RSP, 0x38);
+#else
+    host_x86_SUB64_REG_IMM(block, REG_RSP, 0x48);
+#endif
     host_x86_MOV64_REG_IMM(block, REG_RBP, ((uintptr_t) &cpu_state) + 128);
     if (block->flags & CODEBLOCK_HAS_FPU) {
         host_x86_MOV32_REG_ABS(block, REG_EAX, &cpu_state.TOP);
         host_x86_SUB32_REG_IMM(block, REG_EAX, block->TOP);
         host_x86_MOV32_BASE_OFFSET_REG(block, REG_RSP, IREG_TOP_diff_stack_offset, REG_EAX);
     }
     if (block->flags & CODEBLOCK_NO_IMMEDIATES)
-        host_x86_MOV64_REG_IMM(block, REG_R12, (uintptr_t) ram);
+        host_x86_MOV64_REG_IMM(block, REG_R12, ((uintptr_t) ram) + 2147483648ULL);
 }
 
 void
 codegen_backend_epilogue(codeblock_t *block)
 {
+#ifdef _WIN64
     host_x86_ADD64_REG_IMM(block, REG_RSP, 0x38);
+#else
+    host_x86_ADD64_REG_IMM(block, REG_RSP, 0x48);
+#endif
     host_x86_POP(block, REG_R15);
     host_x86_POP(block, REG_R14);
     host_x86_POP(block, REG_R13);
     host_x86_POP(block, REG_R12);
+#ifdef _WIN64
     host_x86_POP(block, REG_RDI);
     host_x86_POP(block, REG_RSI);
+#endif
     host_x86_POP(block, REG_RBP);
     host_x86_POP(block, REG_RDX);
     host_x86_RET(block);

src/codegen_new/codegen_backend_x86-64_defs.h

@@ -1,5 +1,5 @@
 /*RBP = cpu_state + 128
-  R12 = ram (if block->flags & CODEBLOCK_NO_IMMEDIATES)*/
+  R12 = ram + 2147483648 (if block->flags & CODEBLOCK_NO_IMMEDIATES)*/
 #define REG_AX               0
 #define REG_CX               1
 #define REG_DX               2