[OpenOCD-commit] Main OpenOCD repository branch, master, updated. v0.12.0-420-g15038ab51

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- Log -----------------------------------------------------------------
commit 15038ab51a3c5811f7ff95c1f995c6e9dfe7d3d0
Author: Walter Ji <wal...@os...>
Date:   Fri Nov 17 11:27:09 2023 +0800

    target/mips32: pracc write cp0 status register first
    
    When user requested a change on cp0 status register,
    it may contain changes on EXL/ERL bits, and changes on
    these bits could lead to differnt behaviours on writing
    to other cp0 registers.
    
    Change-Id: Ic83039988c29c06ee134226b52de943c46d19da2
    Signed-off-by: Walter Ji <wal...@os...>
    Reviewed-on: https://review.openocd.org/c/openocd/+/7914
    Tested-by: jenkins
    Reviewed-by: Antonio Borneo <bor...@gm...>

diff --git a/src/target/mips32_pracc.c b/src/target/mips32_pracc.c
index 9f0d87cd9..db50ef928 100644
--- a/src/target/mips32_pracc.c
+++ b/src/target/mips32_pracc.c
@@ -842,12 +842,12 @@ int mips32_pracc_write_regs(struct mips32_common *mips32)
 	};
 
 	uint32_t cp0_write_data[] = {
+		/* status */
+		c0rs[0],
 		/* lo */
 		gprs[32],
 		/* hi */
 		gprs[33],
-		/* status */
-		c0rs[0],
 		/* badvaddr */
 		c0rs[1],
 		/* cause */
@@ -856,6 +856,9 @@ int mips32_pracc_write_regs(struct mips32_common *mips32)
 		c0rs[3],
 	};
 
+	/* Write CP0 Status Register first, changes on EXL or ERL bits
+	 * may lead to different behaviour on writing to other CP0 registers.
+	 */
 	for (size_t i = 0; i < ARRAY_SIZE(cp0_write_code); i++) {
 		/* load CP0 value in $1 */
 		pracc_add_li32(&ctx, 1, cp0_write_data[i], 0);

-----------------------------------------------------------------------

Summary of changes:
 src/target/mips32_pracc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)


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