diff mbox series

[PULL,06/46] tcg/tci: Implement INDEX_op_ld16s_i32

Message ID 20210205225650.1330794-7-richard.henderson@linaro.org (mailing list archive)
State New, archived
Headers show
Series [PULL,01/46] tcg/s390: Fix compare instruction from extended-immediate facility | expand

Commit Message

Richard Henderson Feb. 5, 2021, 10:56 p.m. UTC 
From: Stefan Weil <sw@weilnetz.de>

That TCG opcode is used by debian-buster (arm64) running ffmpeg:

    qemu-aarch64 /usr/bin/ffmpeg -i theora.mkv theora.webm

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20210128024814.2056958-1-sw@weilnetz.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/tci.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tcg/tci.c b/tcg/tci.c
index b3f9531a73..2ba97da189 100644
--- a/tcg/tci.c
+++ b/tcg/tci.c
@@ -615,7 +615,10 @@  uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
             TODO();
             break;
         case INDEX_op_ld16s_i32:
-            TODO();
+            t0 = *tb_ptr++;
+            t1 = tci_read_r(regs, &tb_ptr);
+            t2 = tci_read_s32(&tb_ptr);
+            tci_write_reg(regs, t0, *(int16_t *)(t1 + t2));
             break;
         case INDEX_op_ld_i32:
             t0 = *tb_ptr++;