From 79c4c8bdd3d0c8d02915ec721e5e1a46664b445d Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Sat, 20 Mar 2021 18:47:50 +0100
Subject: [DYNAREC] Added (66) 30..35 XOR opcodes

---
 src/dynarec/dynarec_arm64_00.c         |  28 +++++++-
 src/dynarec/dynarec_arm64_66.c         |  28 ++++++++
 src/dynarec/dynarec_arm64_emit_logic.c | 128 ++++++++++++++++-----------------
 src/dynarec/dynarec_arm64_helper.h     |   4 +-
 4 files changed, 116 insertions(+), 72 deletions(-)

(limited to 'src')

diff --git a/src/dynarec/dynarec_arm64_00.c b/src/dynarec/dynarec_arm64_00.c
index 7daf88fd..61a18f8f 100755
--- a/src/dynarec/dynarec_arm64_00.c
+++ b/src/dynarec/dynarec_arm64_00.c
@@ -375,6 +375,15 @@ uintptr_t dynarec64_00(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin
             emit_sub32c(dyn, ninst, rex, xRAX, i64, x3, x4, x5);
             break;
 
+        case 0x30:
+            INST_NAME("XOR Eb, Gb");
+            SETFLAGS(X_ALL, SF_SET);
+            nextop = F8;
+            GETEB(x1, 0);
+            GETGB(x2);
+            emit_xor8(dyn, ninst, x1, x2, x4, x5);
+            EBBACK;
+            break;
         case 0x31:
             INST_NAME("XOR Ed, Gd");
             SETFLAGS(X_ALL, SF_SET);
@@ -384,7 +393,15 @@ uintptr_t dynarec64_00(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin
             emit_xor32(dyn, ninst, rex, ed, gd, x3, x4);
             WBACK;
             break;
-
+        case 0x32:
+            INST_NAME("XOR Gb, Eb");
+            SETFLAGS(X_ALL, SF_SET);
+            nextop = F8;
+            GETEB(x2, 0);
+            GETGB(x1);
+            emit_xor8(dyn, ninst, x1, x2, x3, x4);
+            GBBACK;
+            break;
         case 0x33:
             INST_NAME("XOR Gd, Ed");
             SETFLAGS(X_ALL, SF_SET);
@@ -393,7 +410,14 @@ uintptr_t dynarec64_00(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin
             GETED(0);
             emit_xor32(dyn, ninst, rex, gd, ed, x3, x4);
             break;
-
+        case 0x34:
+            INST_NAME("XOR AL, Ib");
+            SETFLAGS(X_ALL, SF_SET);
+            u8 = F8;
+            UXTBw(x1, xRAX);
+            emit_xor8c(dyn, ninst, x1, u8, x3, x4);
+            BFIw(xRAX, x1, 0, 8);
+            break;
         case 0x35:
             INST_NAME("XOR EAX, Id");
             SETFLAGS(X_ALL, SF_SET);
diff --git a/src/dynarec/dynarec_arm64_66.c b/src/dynarec/dynarec_arm64_66.c
index dcbefd77..64bfe765 100755
--- a/src/dynarec/dynarec_arm64_66.c
+++ b/src/dynarec/dynarec_arm64_66.c
@@ -230,6 +230,34 @@ uintptr_t dynarec64_66(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin
             BFIw(xRAX, x1, 0, 16);
             break;
 
+        case 0x31:
+            INST_NAME("XOR Ew, Gw");
+            SETFLAGS(X_ALL, SF_SET);
+            nextop = F8;
+            GETGW(x2);
+            GETEW(x1, 0);
+            emit_xor16(dyn, ninst, x1, x2, x4, x5);
+            EWBACK;
+            break;
+        case 0x33:
+            INST_NAME("XOR Gw, Ew");
+            SETFLAGS(X_ALL, SF_SET);
+            nextop = F8;
+            GETGW(x1);
+            GETEW(x2, 0);
+            emit_xor16(dyn, ninst, x1, x2, x3, x4);
+            GWBACK;
+            break;
+        case 0x35:
+            INST_NAME("XOR AX, Iw");
+            SETFLAGS(X_ALL, SF_SET);
+            i32 = F16;
+            UXTHw(x1, xRAX);
+            MOV32w(x2, i32);
+            emit_xor16(dyn, ninst, x1, x2, x3, x4);
+            BFIx(xRAX, x1, 0, 16);
+            break;
+
         case 0xD1:
         case 0xD3:
             nextop = F8;
diff --git a/src/dynarec/dynarec_arm64_emit_logic.c b/src/dynarec/dynarec_arm64_emit_logic.c
index 519b697b..66f2cc9c 100755
--- a/src/dynarec/dynarec_arm64_emit_logic.c
+++ b/src/dynarec/dynarec_arm64_emit_logic.c
@@ -293,40 +293,36 @@ void emit_or8c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4)
 }
 
 // emit XOR8 instruction, from s1 , s2, store result in s1 using s3 and s4 as scratch, s4 can be same as s2 (and so s2 destroyed)
-//void emit_xor8(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4)
-//{
-//    IFX(X_PEND) {
-//        STR_IMM9(s1, xEmu, offsetof(x64emu_t, op1));
-//        STR_IMM9(s2, xEmu, offsetof(x64emu_t, op2));
-//        SET_DF(s3, d_xor8);
-//    } else IFX(X_ALL) {
-//        SET_DFNONE(s3);
-//    }
-//    IFX(X_ALL) {
-//        XORS_REG_LSL_IMM5(s1, s1, s2, 0);
-//    } else {
-//        XOR_REG_LSL_IMM5(s1, s1, s2, 0);
-//    }
-//    IFX(X_PEND) {
-//        STR_IMM9(s1, xEmu, offsetof(x64emu_t, res));
-//    }
-//    IFX(X_CF | X_AF | X_ZF) {
-//        BIC_IMM8(xFlags, xFlags, (1<<F_CF)|(1<<F_AF)|(1<<F_ZF), 0);
-//    }
-//    IFX(X_OF) {
-//        BIC_IMM8(xFlags, xFlags, 0b10, 0x0b);
-//    }
-//    IFX(X_ZF) {
-//        ORR_IMM8_COND(cEQ, xFlags, xFlags, 1<<F_ZF, 0);
-//    }
-//    IFX(X_SF) {
-//        MOV_REG_LSR_IMM5(s3, s1, 7);
-//        BFI(xFlags, s3, F_SF, 1);
-//    }
-//    IFX(X_PF) {
-//        emit_pf(dyn, ninst, s1, s3, s4);
-//    }
-//}
+void emit_xor8(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4)
+{
+    IFX(X_PEND) {
+        STRB_REG(s1, xEmu, offsetof(x64emu_t, op1));
+        STRB_REG(s2, xEmu, offsetof(x64emu_t, op2));
+        SET_DF(s3, d_xor8);
+    } else IFX(X_ALL) {
+        SET_DFNONE(s3);
+    }
+    EORx_REG(s1, s1, s2);
+    IFX(X_PEND) {
+        STRB_U12(s1, xEmu, offsetof(x64emu_t, res));
+    }
+    IFX(X_CF | X_AF | X_OF) {
+        MOV32w(s3, (1<<F_CF)|(1<<F_AF)|(1<<F_OF));
+        BICw(xFlags, xFlags, s3);
+    }
+    IFX(X_ZF) {
+        TSTw_REG(s1, s1);
+        CSETw(s3, cEQ);
+        BFIw(xFlags, s3, F_ZF, 1);
+    }
+    IFX(X_SF) {
+        LSRw(s3, s1, 7);
+        BFIw(xFlags, s3, F_SF, 1);
+    }
+    IFX(X_PF) {
+        emit_pf(dyn, ninst, s1, s3, s4);
+    }
+}
 
 // emit XOR8 instruction, from s1 , constant c, store result in s1 using s3 and s4 as scratch
 void emit_xor8c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4)
@@ -512,40 +508,36 @@ void emit_or16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4)
 //}
 
 // emit XOR16 instruction, from s1 , s2, store result in s1 using s3 and s4 as scratch, s4 can be same as s2 (and so s2 destroyed)
-//void emit_xor16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4)
-//{
-//    IFX(X_PEND) {
-//        STR_IMM9(s1, xEmu, offsetof(x64emu_t, op1));
-//        STR_IMM9(s2, xEmu, offsetof(x64emu_t, op2));
-//        SET_DF(s3, d_xor16);
-//    } else IFX(X_ALL) {
-//        SET_DFNONE(s3);
-//    }
-//    IFX(X_ALL) {
-//        XORS_REG_LSL_IMM5(s1, s1, s2, 0);
-//    } else {
-//        XOR_REG_LSL_IMM5(s1, s1, s2, 0);
-//    }
-//    IFX(X_PEND) {
-//        STR_IMM9(s1, xEmu, offsetof(x64emu_t, res));
-//    }
-//    IFX(X_CF | X_AF | X_ZF) {
-//        BIC_IMM8(xFlags, xFlags, (1<<F_CF)|(1<<F_AF)|(1<<F_ZF), 0);
-//    }
-//    IFX(X_OF) {
-//        BIC_IMM8(xFlags, xFlags, 0b10, 0x0b);
-//    }
-//    IFX(X_ZF) {
-//        ORR_IMM8_COND(cEQ, xFlags, xFlags, 1<<F_ZF, 0);
-//    }
-//    IFX(X_SF) {
-//        MOV_REG_LSR_IMM5(s3, s1, 15);
-//        BFI(xFlags, s3, F_SF, 1);
-//    }
-//    IFX(X_PF) {
-//        emit_pf(dyn, ninst, s1, s3, s4);
-//    }
-//}
+void emit_xor16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4)
+{
+    IFX(X_PEND) {
+        STRH_U12(s1, xEmu, offsetof(x64emu_t, op1));
+        STRH_U12(s2, xEmu, offsetof(x64emu_t, op2));
+        SET_DF(s3, d_xor16);
+    } else IFX(X_ALL) {
+        SET_DFNONE(s3);
+    }
+    EORw_REG(s1, s1, s2);
+    IFX(X_PEND) {
+        STRH_U12(s1, xEmu, offsetof(x64emu_t, res));
+    }
+    IFX(X_CF | X_AF | X_OF) {
+        MOV32w(s3, (1<<F_CF)|(1<<F_AF)|(1<<F_OF));
+        BICw(xFlags, xFlags, s3);
+    }
+    IFX(X_ZF) {
+        ANDSw_mask(s1, s1, 0, 15);  //mask=0xffff
+        CSETw(s3, cEQ);
+        BFIw(xFlags, s3, F_ZF, 1);
+    }
+    IFX(X_SF) {
+        LSRw(s3, s1, 15);
+        BFIw(xFlags, s3, F_SF, 1);
+    }
+    IFX(X_PF) {
+        emit_pf(dyn, ninst, s1, s3, s4);
+    }
+}
 
 // emit XOR16 instruction, from s1 , constant c, store result in s1 using s3 and s4 as scratch
 //void emit_xor16c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4)
diff --git a/src/dynarec/dynarec_arm64_helper.h b/src/dynarec/dynarec_arm64_helper.h
index 09503ab9..1629170a 100755
--- a/src/dynarec/dynarec_arm64_helper.h
+++ b/src/dynarec/dynarec_arm64_helper.h
@@ -656,7 +656,7 @@ void emit_and32(dynarec_arm_t* dyn, int ninst, rex_t rex, int s1, int s2, int s3
 void emit_and32c(dynarec_arm_t* dyn, int ninst, rex_t rex, int s1, int64_t c, int s3, int s4);
 void emit_or8(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
 void emit_or8c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4);
-//void emit_xor8(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
+void emit_xor8(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
 void emit_xor8c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4);
 void emit_and8(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
 void emit_and8c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4);
@@ -666,7 +666,7 @@ void emit_sub16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
 //void emit_sub16c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4);
 void emit_or16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
 //void emit_or16c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4);
-//void emit_xor16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
+void emit_xor16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
 //void emit_xor16c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4);
 void emit_and16(dynarec_arm_t* dyn, int ninst, int s1, int s2, int s3, int s4);
 //void emit_and16c(dynarec_arm_t* dyn, int ninst, int s1, int32_t c, int s3, int s4);
-- 
cgit 1.4.1