diff options
| author | xuzhuoyi <[email protected]> | 2018-09-03 23:02:16 +0800 |
|---|---|---|
| committer | xuzhuoyi <[email protected]> | 2018-09-03 23:02:16 +0800 |
| commit | 9d8e27e626608d3d96efb774c882541380d21d5e (patch) | |
| tree | 7197e8ce48ffb694de1f26b3cf177bae2777e6c5 /libcpu | |
| parent | 5fd1213e73275d57489f879d5841e3ba3b8ab43f (diff) | |
[bsp][tms320f28379d] Modify to C28x Compiler Register Conventions
Diffstat (limited to 'libcpu')
| -rw-r--r-- | libcpu/c28x/context.s | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/libcpu/c28x/context.s b/libcpu/c28x/context.s index 020325e126..226a17f5d4 100644 --- a/libcpu/c28x/context.s +++ b/libcpu/c28x/context.s @@ -80,28 +80,30 @@ _rt_hw_interrupt_enable: ; ; void rt_hw_context_switch(rt_uint32 from, rt_uint32 to); ; r0 --> from -; r1 --> to +; r4 --> to .asmfunc _rt_hw_context_switch_interrupt: _rt_hw_context_switch: + MOVL XAR0, #0 MOV AR0, AL + MOVL XAR4, *-SP[4] ; set rt_thread_switch_interrupt_flag to 1 - MOVL XAR2, #_rt_thread_switch_interrupt_flag - MOVL XAR3, *XAR2 - MOVL ACC, XAR3 + MOVL XAR5, #_rt_thread_switch_interrupt_flag + MOVL XAR6, *XAR5 + MOVL ACC, XAR6 CMPB AL, #1 B _reswitch, EQ - MOVL XAR3, #1 - MOVL *XAR2, XAR3 + MOVL XAR6, #1 + MOVL *XAR5, XAR6 - MOVL XAR2, #_rt_interrupt_from_thread ; set rt_interrupt_from_thread - MOVL *XAR2, XAR0 + MOVL XAR5, #_rt_interrupt_from_thread ; set rt_interrupt_from_thread + MOVL *XAR5, XAR0 _reswitch: - MOVL XAR2, #_rt_interrupt_to_thread ; set rt_interrupt_to_thread - MOVL *XAR2, XAR1 + MOVL XAR5, #_rt_interrupt_to_thread ; set rt_interrupt_to_thread + MOVL *XAR5, XAR4 TRAP #16 LRETR |