[PULL 13/41] target/ppc: Convert mcrf to decode tree

[Harsh Prateek Bora <harshpb@linux.ibm.com>]

From: Shivani Nittor <shivani@linux.ibm.com>

Convert mcrf to decode tree specification. The functionality
was tested by comparing the qemu -D log -d op,in_asm output
as well as single stepping gdb.

Signed-off-by: Shivani Nittor <shivani@linux.ibm.com>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Reviewed-by: Amit Machhiwal <amachhiw@linux.ibm.com>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Tested-by: Aniket Sahu <asahu1x@linux.ibm.com>
Link: https://lore.kernel.org/qemu-devel/20260827133010.278889-10-rathc@linux.ibm.com
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 target/ppc/insn32.decode             | 6 ++++++
 target/ppc/translate.c               | 7 -------
 target/ppc/translate/misc-impl.c.inc | 6 ++++++
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index ef0fe12959..f928cd6602 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -1452,6 +1452,12 @@ MSGSYNC         011111 ----- ----- ----- 1101110110 -
 SYNC            011111 -- ... --- ..   ----- 1001010110 -           @X_sync
 EIEIO           011111 ----- ----- ----- 1101010110 -
 
+# Condition Register Field Instruction
+
+&XL_bfa         bf bfa
+@XL_bfa         ...... bf:3 .. bfa:3 .. ..... ..... ..... .
+MCRF            010011 ... -- ... -- ----- 00000 00000 -       @XL_bfa
+
 # Branch History Rolling Buffer (BHRB) Instructions
 
 &XFX_bhrbe      rt bhrbe
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 53acd54ad4..7e7ef4e32d 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -3642,12 +3642,6 @@ GEN_CRLOGIC(crorc, tcg_gen_orc_i32, 0x0D);
 /* crxor */
 GEN_CRLOGIC(crxor, tcg_gen_xor_i32, 0x06);
 
-/* mcrf */
-static void gen_mcrf(DisasContext *ctx)
-{
-    tcg_gen_mov_i32(cpu_crf[crfD(ctx->opcode)], cpu_crf[crfS(ctx->opcode)]);
-}
-
 /***                           System linkage                              ***/
 
 /* rfi (supervisor only) */
@@ -5709,7 +5703,6 @@ GEN_HANDLER(bc, 0x10, 0xFF, 0xFF, 0x00000000, PPC_FLOW),
 GEN_HANDLER(bcctr, 0x13, 0x10, 0x10, 0x00000000, PPC_FLOW),
 GEN_HANDLER(bclr, 0x13, 0x10, 0x00, 0x00000000, PPC_FLOW),
 GEN_HANDLER_E(bctar, 0x13, 0x10, 0x11, 0x0000E000, PPC_NONE, PPC2_BCTAR_ISA207),
-GEN_HANDLER(mcrf, 0x13, 0x00, 0xFF, 0x00000001, PPC_INTEGER),
 GEN_HANDLER(rfi, 0x13, 0x12, 0x01, 0x03FF8001, PPC_FLOW),
 #if defined(TARGET_PPC64)
 GEN_HANDLER(rfid, 0x13, 0x12, 0x00, 0x03FF8001, PPC_64B),
diff --git a/target/ppc/translate/misc-impl.c.inc b/target/ppc/translate/misc-impl.c.inc
index cbf82b1ea0..890fbb209e 100644
--- a/target/ppc/translate/misc-impl.c.inc
+++ b/target/ppc/translate/misc-impl.c.inc
@@ -155,3 +155,9 @@ static bool trans_ATTN(DisasContext *ctx, arg_ATTN *a)
     return false;
 #endif
 }
+
+static bool trans_MCRF(DisasContext *ctx, arg_MCRF *a)
+{
+    tcg_gen_mov_i32(cpu_crf[a->bf], cpu_crf[a->bfa]);
+    return true;
+}
-- 
2.52.0