target/i386/tcg: implement APX

[PATCH 04/18] target/i386/tcg: add definition for REX2 prefix

Paolo Bonzini posted 18 patches 18 hours ago

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Maintainers: Warner Losh <imp@bsdimp.com>, Kyle Evans <kevans@freebsd.org>, Laurent Vivier <laurent@vivier.eu>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Zhao Liu <zhao1.liu@intel.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>

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[PATCH 04/18] target/i386/tcg: add definition for REX2 prefix

Posted by Paolo Bonzini 18 hours ago

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 83b250056e1..061adcb7221 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -50,6 +50,7 @@
 #define PREFIX_ADR    0x10
 #define PREFIX_VEX    0x20
 #define PREFIX_REX    0x40
+#define PREFIX_REX2   0x80
 
 #ifdef TARGET_X86_64
 # define ctztl  ctz64
@@ -208,7 +209,7 @@ typedef struct DisasContext {
 #endif
 
 #ifdef TARGET_X86_64
-#define REX_PREFIX(S)  (((S)->prefix & (PREFIX_REX | PREFIX_VEX)) != 0)
+#define REX_PREFIX(S)  (((S)->prefix & (PREFIX_REX | PREFIX_REX2 | PREFIX_VEX)) != 0)
 #define REX_W(S)       ((S)->vex_w)
 #define REX_R(S)       ((S)->rex_r + 0)
 #define REX_X(S)       ((S)->rex_x + 0)
-- 
2.52.0