From b5de464e85af225181e5257d35ecab649196530d Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Tue, 7 Jan 2025 20:40:09 +0100
Subject: [PATCH] [ARM64_DYNAREC] Added FCMEQ printer

---
 src/dynarec/arm64/arm64_emitter.h | 4 ++--
 src/dynarec/arm64/arm64_printer.c | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/dynarec/arm64/arm64_emitter.h b/src/dynarec/arm64/arm64_emitter.h
index bfb763b034..f86a93ec48 100644
--- a/src/dynarec/arm64/arm64_emitter.h
+++ b/src/dynarec/arm64/arm64_emitter.h
@@ -1306,7 +1306,7 @@ int convert_bitmask(uint64_t bitmask);
 #define VFRSQRTSQS(Vd, Vn, Vm)      EMIT(FRSQRTS_vector(1, 0, Vm, Vn, Vd))
 #define VFRSQRTSQD(Vd, Vn, Vm)      EMIT(FRSQRTS_vector(1, 0, Vm, Vn, Vd))
 
-// CMP
+// CMP . NZCV: unordere=0011, eq=0110, inf=1000, sup=0010
 #define FCMP_scalar(type, Rn, Rm, opc)  (0b11110<<24 | (type)<<22 | 1<<21 | (Rm)<<16 | 0b1000<<10 | (Rn)<<5 | (opc)<<3)
 #define FCMPS(Sn, Sm)              FEMIT(FCMP_scalar(0b00, Sn, Sm, 0b00))
 #define FCMPD(Dn, Dm)              FEMIT(FCMP_scalar(0b01, Dn, Dm, 0b00))
@@ -1835,7 +1835,7 @@ int convert_bitmask(uint64_t bitmask);
 #define FCMLTS_0(Rd, Rn)             EMIT(FCMP_0_scalar(0, 0, 0b10, (Rn), (Rd)))
 #define FCMLTD_0(Rd, Rn)             EMIT(FCMP_0_scalar(0, 1, 0b10, (Rn), (Rd)))
 
-// Scalar Float CMP
+// Scalar Float CMEQ
 #define FCMP_op_scalar(U, E, sz, Rm, ac, Rn, Rd)    (0b01<<30 | (U)<<29 | 0b11110<<24 | (E)<<23 | (sz)<<22 | 1<<21 | (Rm)<<16 | 0b1110<<12 | (ac)<<11 | 1<<10 | (Rn)<<5 | (Rd))
 #define FCMEQS(Rd, Rn, Rm)          EMIT(FCMP_op_scalar(0, 0, 0, (Rm), 0, (Rn), (Rd)))
 #define FCMEQD(Rd, Rn, Rm)          EMIT(FCMP_op_scalar(0, 0, 1, (Rm), 0, (Rn), (Rd)))
diff --git a/src/dynarec/arm64/arm64_printer.c b/src/dynarec/arm64/arm64_printer.c
index fbb0b52784..2d28a831b1 100644
--- a/src/dynarec/arm64/arm64_printer.c
+++ b/src/dynarec/arm64/arm64_printer.c
@@ -1324,6 +1324,12 @@ const char* arm64_print(uint32_t opcode, uintptr_t addr)
             snprintf(buff, sizeof(buff), "FCMP %c%d, %c%d", s, Rn, s, Rm);
         return buff;
     }
+    //FCMEQ
+    if(isMask(opcode, "000111100f1mmmmm111001nnnnnddddd", &a)) {
+        char s = (sf==0)?'S':'D';
+        snprintf(buff, sizeof(buff), "FCMEQ %c%d, %c%d, %c%d", s, Rd, s, Rn, s, Rm);
+        return buff;
+    }
     //FCMP vector
     if(isMask(opcode, "0QU01110cf1mmmmm111001nnnnnddddd", &a)) {
         char s = (sf==0)?'S':((sf==1)?'D':'?');