From 331b1ca616cb708db30dab68e3262d286e687f24 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 15 Aug 2019 09:46:42 +0100 Subject: [PATCH] target/arm: Pass in pc to thumb_insn_is_16bit MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This function is used in two different contexts, and it will be clearer if the function is given the address to which it applies. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Message-id: 20190807045335.1361-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/translate.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/target/arm/translate.c b/target/arm/translate.c index b32508cd2f..de941e6b3d 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -9246,11 +9246,11 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) } } -static bool thumb_insn_is_16bit(DisasContext *s, uint32_t insn) +static bool thumb_insn_is_16bit(DisasContext *s, uint32_t pc, uint32_t insn) { - /* Return true if this is a 16 bit instruction. We must be precise - * about this (matching the decode). We assume that s->pc still - * points to the first 16 bits of the insn. + /* + * Return true if this is a 16 bit instruction. We must be precise + * about this (matching the decode). */ if ((insn >> 11) < 0x1d) { /* Definitely a 16-bit instruction */ @@ -9270,7 +9270,7 @@ static bool thumb_insn_is_16bit(DisasContext *s, uint32_t insn) return false; } - if ((insn >> 11) == 0x1e && s->pc - s->page_start < TARGET_PAGE_SIZE - 3) { + if ((insn >> 11) == 0x1e && pc - s->page_start < TARGET_PAGE_SIZE - 3) { /* 0b1111_0xxx_xxxx_xxxx : BL/BLX prefix, and the suffix * is not on the next page; we merge this into a 32-bit * insn. @@ -11809,7 +11809,7 @@ static bool insn_crosses_page(CPUARMState *env, DisasContext *s) */ uint16_t insn = arm_lduw_code(env, s->pc, s->sctlr_b); - return !thumb_insn_is_16bit(s, insn); + return !thumb_insn_is_16bit(s, s->pc, insn); } static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) @@ -12108,7 +12108,7 @@ static void thumb_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu) } insn = arm_lduw_code(env, dc->pc, dc->sctlr_b); - is_16bit = thumb_insn_is_16bit(dc, insn); + is_16bit = thumb_insn_is_16bit(dc, dc->pc, insn); dc->pc += 2; if (!is_16bit) { uint32_t insn2 = arm_lduw_code(env, dc->pc, dc->sctlr_b); -- 2.11.0