Added 66 64 8B MOV opcode (#749)

4 files changed, 100 insertions, 1 deletions

diff --git a/src/dynarec/rv64/dynarec_rv64_64.c b/src/dynarec/rv64/dynarec_rv64_64.c
index 455a8d72..c01f0260 100644
--- a/src/dynarec/rv64/dynarec_rv64_64.c
+++ b/src/dynarec/rv64/dynarec_rv64_64.c
@@ -84,6 +84,10 @@ uintptr_t dynarec64_64(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
             emit_xor32(dyn, ninst, rex, gd, ed, x3, x4);
             break;
 
+        case 0x66:
+            addr = dynarec64_6664(dyn, addr, ip, ninst, rex, seg, ok, need_epilog);
+            break;
+
         case 0x88:
             INST_NAME("MOV Seg:Eb, Gb");
             grab_segdata(dyn, addr, ninst, x4, seg);
diff --git a/src/dynarec/rv64/dynarec_rv64_66.c b/src/dynarec/rv64/dynarec_rv64_66.c
index 24584465..4208d21a 100644
--- a/src/dynarec/rv64/dynarec_rv64_66.c
+++ b/src/dynarec/rv64/dynarec_rv64_66.c
@@ -253,6 +253,15 @@ uintptr_t dynarec64_66(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
                 emit_cmp16_0(dyn, ninst, x1, x3, x4);
             }
             break;
+        case 0x64:
+            addr = dynarec64_6664(dyn, addr, ip, ninst, rex, _FS, ok, need_epilog);
+            break;
+        case 0x65:
+            addr = dynarec64_6664(dyn, addr, ip, ninst, rex, _GS, ok, need_epilog);
+            break;
+        case 0x66:
+            addr = dynarec64_66(dyn, addr, ip, ninst, rex, rep, ok, need_epilog);
+            break;
         case 0x69:
         case 0x6B:
             if(opcode==0x69) {
diff --git a/src/dynarec/rv64/dynarec_rv64_6664.c b/src/dynarec/rv64/dynarec_rv64_6664.c
new file mode 100644
index 00000000..569d1c9c
--- /dev/null
+++ b/src/dynarec/rv64/dynarec_rv64_6664.c
@@ -0,0 +1,86 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <pthread.h>
+#include <errno.h>
+
+#include "debug.h"
+#include "box64context.h"
+#include "dynarec.h"
+#include "emu/x64emu_private.h"
+#include "emu/x64run_private.h"
+#include "x64run.h"
+#include "x64emu.h"
+#include "box64stack.h"
+#include "callback.h"
+#include "emu/x64run_private.h"
+#include "x64trace.h"
+#include "dynarec_native.h"
+
+#include "rv64_printer.h"
+#include "dynarec_rv64_private.h"
+#include "dynarec_rv64_helper.h"
+#include "dynarec_rv64_functions.h"
+
+#define GETG        gd = ((nextop&0x38)>>3)+(rex.r<<3)
+
+uintptr_t dynarec64_6664(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int seg, int* ok, int* need_epilog)
+{
+    (void)ip; (void)need_epilog;
+
+    uint8_t opcode = F8;
+    uint8_t nextop;
+    uint8_t gd, ed;
+    int64_t j64;
+    int v0, v1;
+    int64_t fixedaddress;
+    int unscaled;
+    MAYUSE(j64);
+
+    // REX prefix before the 66 are ignored
+    rex.rex = 0;
+    while(opcode>=0x40 && opcode<=0x4f) {
+        rex.rex = opcode;
+        opcode = F8;
+    }
+
+    switch(opcode) {
+        case 0x8B:
+            INST_NAME("MOV Gd, FS:Ed");
+            nextop=F8;
+            GETGD;
+            if(MODREG) {   // reg <= reg
+                ed = xRAX+(nextop&7)+(rex.b<<3);
+                if(rex.w) {
+                    MV(gd, ed);
+                } else {
+                    if(ed!=gd) {
+                        LUI(x1, 0xffff0);
+                        AND(gd, gd, x1);
+                        SLLI(x1, ed, 48);
+                        SRLI(x1, x1, 48);
+                        OR(gd, gd, x1);
+                    }
+                }
+            } else {                    // mem <= reg
+                grab_segdata(dyn, addr, ninst, x4, seg);
+                SMREAD();
+                addr = geted(dyn, addr, ninst, nextop, &ed, x2, x1, &fixedaddress, rex, NULL, 1, 0);
+                ADD(x4, ed, x4);
+                if(rex.w) {
+                    LD(gd, x4, fixedaddress);
+                } else {
+                    LHU(x1, x4, fixedaddress);
+                    SRLI(gd, gd, 16);
+                    SLLI(gd, gd, 16);
+                    OR(gd, gd, x1);
+                }
+            }
+            break;
+
+
+        default:
+            DEFAULT;
+    }
+    return addr;
+}
diff --git a/src/dynarec/rv64/dynarec_rv64_helper.h b/src/dynarec/rv64/dynarec_rv64_helper.h
index d7f52df7..f6be2c94 100644
--- a/src/dynarec/rv64/dynarec_rv64_helper.h
+++ b/src/dynarec/rv64/dynarec_rv64_helper.h
@@ -1096,7 +1096,7 @@ uintptr_t dynarec64_DE(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
 uintptr_t dynarec64_DF(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int rep, int* ok, int* need_epilog);
 uintptr_t dynarec64_F0(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int rep, int* ok, int* need_epilog);
 uintptr_t dynarec64_660F(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int* ok, int* need_epilog);
-//uintptr_t dynarec64_6664(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int seg, int* ok, int* need_epilog);
+uintptr_t dynarec64_6664(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int seg, int* ok, int* need_epilog);
 uintptr_t dynarec64_66F0(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int rep, int* ok, int* need_epilog);
 uintptr_t dynarec64_F20F(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int* ok, int* need_epilog);
 uintptr_t dynarec64_F30F(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int* ok, int* need_epilog);