[RV64_DYNAREC] Added some 66 0F prefixed opcodes

4 files changed, 185 insertions, 2 deletions

diff --git a/src/dynarec/rv64/dynarec_rv64_00.c b/src/dynarec/rv64/dynarec_rv64_00.c
index b3d75989..293f054f 100644
--- a/src/dynarec/rv64/dynarec_rv64_00.c
+++ b/src/dynarec/rv64/dynarec_rv64_00.c
@@ -133,6 +133,10 @@ uintptr_t dynarec64_00(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
             }
             break;
 
+        case 0x66:
+            addr = dynarec64_66(dyn, addr, ip, ninst, rex, rep, ok, need_epilog);
+            break;
+
         case 0x68:
             INST_NAME("PUSH Id");
             i64 = F32S;
diff --git a/src/dynarec/rv64/dynarec_rv64_66.c b/src/dynarec/rv64/dynarec_rv64_66.c
new file mode 100644
index 00000000..f42ca1fb
--- /dev/null
+++ b/src/dynarec/rv64/dynarec_rv64_66.c
@@ -0,0 +1,92 @@
+#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"
+
+
+uintptr_t dynarec64_66(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int rep, int* ok, int* need_epilog)
+{
+    uint8_t opcode = F8;
+    uint8_t nextop, u8;
+    int16_t i16;
+    uint16_t u16;
+    uint64_t u64;
+    int32_t i32;
+    int64_t j64;
+    uint8_t gd, ed;
+    uint8_t wback, wb1;
+    int64_t fixedaddress;
+    int unscaled;
+    int lock;
+    MAYUSE(u8);
+    MAYUSE(u16);
+    MAYUSE(u64);
+    MAYUSE(j64);
+    MAYUSE(lock);
+
+    while((opcode==0x2E) || (opcode==0x36) || (opcode==0x66))   // ignoring CS:, SS: or multiple 0x66
+        opcode = F8;
+
+    while((opcode==0xF2) || (opcode==0xF3)) {
+        rep = opcode-0xF1;
+        opcode = F8;
+    }
+    // REX prefix before the 66 are ignored
+    rex.rex = 0;
+    while(opcode>=0x40 && opcode<=0x4f) {
+        rex.rex = opcode;
+        opcode = F8;
+    }
+
+    if(rex.w && opcode!=0x0f)   // rex.w cancels "66", but not for 66 0f type of prefix
+        return dynarec64_00(dyn, addr-1, ip, ninst, rex, rep, ok, need_epilog); // addr-1, to "put back" opcode
+
+    switch(opcode) {
+
+        case 0x0F:
+            addr = dynarec64_660F(dyn, addr, ip, ninst, rex, ok, need_epilog);
+            break;
+
+        case 0x70:
+        case 0x71:
+        case 0x72:
+        case 0x73:
+        case 0x74:
+        case 0x75:
+        case 0x76:
+        case 0x77:
+        case 0x78:
+        case 0x79:
+        case 0x7a:
+        case 0x7b:
+        case 0x7c:
+        case 0x7d:
+        case 0x7e:
+        case 0x7f:
+            // just use regular conditional jump
+            return dynarec64_00(dyn, addr-1, ip, ninst, rex, rep, ok, need_epilog);
+
+        default:
+            DEFAULT;
+    }
+    return addr;
+}
diff --git a/src/dynarec/rv64/dynarec_rv64_660f.c b/src/dynarec/rv64/dynarec_rv64_660f.c
new file mode 100644
index 00000000..8210a27d
--- /dev/null
+++ b/src/dynarec/rv64/dynarec_rv64_660f.c
@@ -0,0 +1,87 @@
+#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_functions.h"
+#include "dynarec_rv64_helper.h"
+
+uintptr_t dynarec64_660F(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int* ok, int* need_epilog)
+{
+    (void)ip; (void)need_epilog;
+
+    uint8_t opcode = F8;
+    uint8_t nextop, u8;
+    int32_t i32;
+    uint8_t gd, ed;
+    uint8_t wback, wb1, wb2;
+    uint8_t eb1, eb2;
+    int64_t j64;
+    uint64_t tmp64u, tmp64u2;
+    int v0, v1;
+    int q0, q1;
+    int d0, d1;
+    int64_t fixedaddress;
+    int unscaled;
+
+    MAYUSE(d0);
+    MAYUSE(d1);
+    MAYUSE(q0);
+    MAYUSE(q1);
+    MAYUSE(eb1);
+    MAYUSE(eb2);
+    MAYUSE(j64);
+    
+    switch(opcode) {
+
+        case 0x1F:
+            INST_NAME("NOP (multibyte)");
+            nextop = F8;
+            FAKEED;
+            break;
+        
+        #define GO(GETFLAGS, NO, YES, F)            \
+            READFLAGS(F);                           \
+            GETFLAGS;                               \
+            nextop=F8;                              \
+            GETGD;                                  \
+            if(MODREG) {                            \
+                ed = xRAX+(nextop&7)+(rex.b<<3);    \
+                SLLI(x4, ed, 48);                   \
+                SRLI(x4, x4, 48);                   \
+            } else {                                \
+                SMREAD();                           \
+                addr = geted(dyn, addr, ninst, nextop, &ed, x2, x4, &fixedaddress, rex, NULL, 1, 0); \
+                LHU(x4, ed, fixedaddress);          \
+                ed = x4;                            \
+            }                                       \
+            B##NO(x1, 4+4*4);                       \
+            ADDI(x3, xZR, -1);                      \
+            SRLI(x3, x3, 48);                       \
+            AND(gd, gd, x3);                        \
+            OR(gd, gd, ed);
+
+        GOCOND(0x40, "CMOV", "Gw, Ew");
+        #undef GO
+
+        default:
+            DEFAULT;
+    }
+    return addr;
+}
diff --git a/src/dynarec/rv64/dynarec_rv64_helper.h b/src/dynarec/rv64/dynarec_rv64_helper.h
index ece99d3f..741577d0 100644
--- a/src/dynarec/rv64/dynarec_rv64_helper.h
+++ b/src/dynarec/rv64/dynarec_rv64_helper.h
@@ -663,7 +663,7 @@ uintptr_t dynarec64_00(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
 uintptr_t dynarec64_0F(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int* ok, int* need_epilog);
 //uintptr_t dynarec64_64(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int rep, int seg, int* ok, int* need_epilog);
 //uintptr_t dynarec64_65(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_66(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_66(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_67(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_D8(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_D9(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ninst, rex_t rex, int rep, int* ok, int* need_epilog);
@@ -674,7 +674,7 @@ uintptr_t dynarec64_0F(dynarec_rv64_t* dyn, uintptr_t addr, uintptr_t ip, int ni
 //uintptr_t dynarec64_DE(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_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 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_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);