From c6c2c0fc32362ba234ae3bdad1a55c2d6aefaa12 Mon Sep 17 00:00:00 2001 From: Pavel Dovgalyuk Date: Fri, 23 Jun 2017 12:41:16 +0200 Subject: [PATCH] mips: set CP0 Debug DExcCode for SDBBP instruction MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes setting DExcCode field of CP0 Debug register when SDBBP instruction is executed. According to EJTAG specification, this field must be set to the value 9 (Bp). Signed-off-by: Pavel Dovgalyuk Message-id: 20170502120350.3368.92338.stgit@PASHA-ISP Reviewed-by: Aurelien Jarno Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Aurelien Jarno --- target/mips/helper.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/mips/helper.c b/target/mips/helper.c index e359ca3b44..166f0d1243 100644 --- a/target/mips/helper.c +++ b/target/mips/helper.c @@ -627,6 +627,8 @@ void mips_cpu_do_interrupt(CPUState *cs) goto set_DEPC; case EXCP_DBp: env->CP0_Debug |= 1 << CP0DB_DBp; + /* Setup DExcCode - SDBBP instruction */ + env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | 9 << CP0DB_DEC; goto set_DEPC; case EXCP_DDBS: env->CP0_Debug |= 1 << CP0DB_DDBS;