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在配置文件“rtconfig.h”中增加硬浮点FPU的配置项，

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浮点经常会用到，所以默认使用硬浮点。
This commit is contained in:
勤为本
2017-09-13 15:21:09 +08:00
parent 8d90867182
commit 574e22bdbd
3 changed files with 8 additions and 0 deletions
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libcpu/mips/loongson_1c/stackframe_fpu.h
+4
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@@ -37,6 +37,7 @@
.macro SAVE_FPU
.set push
.set noreorder
#ifdef RT_USING_FPU
move k1, sp /* 保存现场 */
and k0, k1, 0xFFFFFFF8 /* 8字节对齐 */
PTR_SUBU sp, k0, PT_FPU_SIZE /* 计算栈底 */
@@ -57,6 +58,7 @@
s.d $f28, PT_FPU_R28(sp)
s.d $f30, PT_FPU_R30(sp)
move sp, k1 /* 恢复现场 */
#endif
.set reorder
.set pop
.endm
@@ -65,6 +67,7 @@
.macro RESTORE_FPU
.set push
.set noreorder
#ifdef RT_USING_FPU
move k1, sp /* 保存现场 */
and k0, k1, 0xFFFFFFF8 /* 8字节对齐 */
PTR_SUBU sp, k0, PT_FPU_SIZE /* 计算栈底*/
@@ -85,6 +88,7 @@
l.d $f28, PT_FPU_R28(sp)
l.d $f30, PT_FPU_R30(sp)
move sp, k1 /* 恢复现场 */
#endif
.set reorder
.set pop
.endm