Commit Graph

15 Commits

Author SHA1 Message Date
jiladahe1997 433e5f8147 [bugfix] libcpu/arm/cortex-m/context_gcc: 修复thumb指令集汇编语法错误
当使用thumb指令集时,要求汇编语法中的“条件执行”要跟在IT指令后面,否则会编译不通过。
报错如下:Error: thumb conditional instruction should be in IT block -- `moveq r4,#0x01'

虽然可以通过指定"-Wa,-mimplicit-it=thumb"选项来告诉编译器识别隐式的IT指令,但是能在代码里面直接加上IT指令的话更好。

thumb指令集“条件执行”arm官网文档:
    https://developer.arm.com/documentation/dui0473/m/condition-codes/conditional-execution-in-thumb-state

参考论坛帖子:
    https://club.rt-thread.org/ask/question/433887.html
    https://club.rt-thread.org/ask/question/4188.html

Signed-off-by: Mingrui Ren <jiladahe1997@gmail.com>
2021-12-09 11:22:46 +08:00
aozima c3d63e49de set Systick interrupt priority to the lowest 2020-05-30 15:23:25 +08:00
Bernard Xiong 7c425408b4 [license] Change the license of libarm to Apache. 2018-10-15 01:35:07 +08:00
aozima 6c39b2d54d [libcpu][comtex-m4] enhancement hard fault exception handler. 2018-07-25 21:39:44 +08:00
aozima dd1041bb7f [libcpu]: fixed #1196 FPU FPCA issue. 2018-01-31 18:54:11 +08:00
aozima 9b7303e511 update libcpu: ensure fault enable. 2017-08-18 11:12:58 +08:00
aozima 2c47f2e683 Fix some spell error; 2014-07-31 13:59:25 +08:00
aozima 5120f54a29 fix spelling error. 2013-06-24 22:57:27 +08:00
aozima 34d59ccb0f update libcpu/arm/cortex-m4: support lazy stack optimized. 2013-06-23 18:10:46 +08:00
aozima b045f93b47 fixed bug: correct cortex-m SCB->VTOR address. 2013-06-23 18:08:16 +08:00
aozima f9e673354a update libcpu/arm/cortex-m4: restore MSP. 2013-06-22 18:59:49 +08:00
Bernard Xiong 72782e9203 convert end of line 2013-01-08 05:05:02 -08:00
wuyangyong 38ba67a867 update libcpu cortex-m4.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1967 bbd45198-f89e-11dd-88c7-29a3b14d5316
2012-02-18 17:46:08 +00:00
wuyangyong aad32f8546 support context switch load/store FPU register.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1901 bbd45198-f89e-11dd-88c7-29a3b14d5316
2011-12-31 20:25:44 +00:00
bernard.xiong@gmail.com 3ac0b7b966 add STM32F40x porting (uncompleted)
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1770 bbd45198-f89e-11dd-88c7-29a3b14d5316
2011-10-20 23:55:08 +00:00