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Fix/asm guard #264

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68015b5
Adding guards to xcore assembly code
xalbertoisorna Feb 9, 2026
da4a898
typo
xalbertoisorna Feb 9, 2026
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2 changes: 2 additions & 0 deletions examples/app_par_decimator/src/decimator_subtask.c
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,8 @@ void decimator_subtask(
static inline
void shift_buffer(uint32_t* buff)
{
#if defined(__xcore__)
uint32_t* src = &buff[-1];
asm volatile("vldd %0[0]; vstd %1[0];" :: "r"(src), "r"(buff) : "memory" );
#endif // __xcore__
}
4 changes: 2 additions & 2 deletions lib_mic_array/api/mic_array/cpp/Decimator.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -178,8 +178,8 @@ void mic_array::TwoStageDecimator<MIC_COUNT>
static inline
void mic_array::shift_buffer(uint32_t* buff)
{
#if defined(__xcore__)
uint32_t* src = &buff[-1];
asm volatile("vldd %0[0]; vstd %1[0];" :: "r"(src), "r"(buff) : "memory" );
#endif // __xcore__
}


2 changes: 2 additions & 0 deletions lib_mic_array/api/mic_array/cpp/PdmRx.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,7 @@ extern "C" {
void enable_pdm_rx_isr(
const port_t p_pdm_mics)
{
#if defined(__xcore__)
asm volatile(
"setc res[%0], %1 \n"
"ldap r11, pdm_rx_isr \n"
Expand All @@ -163,6 +164,7 @@ extern "C" {
:
: "r"(p_pdm_mics), "r"(XS1_SETC_IE_MODE_INTERRUPT)
: "r11" );
#endif // __xcore__
}

}
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6 changes: 5 additions & 1 deletion lib_mic_array/src/deinterleave16.S
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
// Copyright 2023-2026 XMOS LIMITED.
// This Software is subject to the terms of the XMOS Public Licence: Version 1.

#if defined(__XS3A__)

#define NSTACKWORDS 6

.text
Expand Down Expand Up @@ -138,4 +140,6 @@ deinterleave16:
.cc_bottom deinterleave16.func


.size deinterleave16, .L_end - deinterleave16
.size deinterleave16, .L_end - deinterleave16

#endif // __XS3A__
6 changes: 5 additions & 1 deletion lib_mic_array/src/deinterleave2.S
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
// Copyright 2022-2026 XMOS LIMITED.
// This Software is subject to the terms of the XMOS Public Licence: Version 1.

#if defined(__XS3A__)

#define NSTACKWORDS 0

.text
Expand Down Expand Up @@ -36,4 +38,6 @@ deinterleave2:
.cc_bottom deinterleave2.func


.size deinterleave2, .L_end - deinterleave2
.size deinterleave2, .L_end - deinterleave2

#endif // __XS3A__
6 changes: 5 additions & 1 deletion lib_mic_array/src/deinterleave4.S
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
// Copyright 2022-2026 XMOS LIMITED.
// This Software is subject to the terms of the XMOS Public Licence: Version 1.

#if defined(__XS3A__)

#define NSTACKWORDS 2

.text
Expand Down Expand Up @@ -80,4 +82,6 @@ deinterleave4:
.cc_bottom deinterleave4.func


.size deinterleave4, .L_end - deinterleave4
.size deinterleave4, .L_end - deinterleave4

#endif // __XS3A__
6 changes: 5 additions & 1 deletion lib_mic_array/src/deinterleave8.S
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
// Copyright 2022-2026 XMOS LIMITED.
// This Software is subject to the terms of the XMOS Public Licence: Version 1.

#if defined(__XS3A__)

#define NSTACKWORDS 6

.text
Expand Down Expand Up @@ -110,4 +112,6 @@ deinterleave8:
.cc_bottom deinterleave8.func


.size deinterleave8, .L_end - deinterleave8
.size deinterleave8, .L_end - deinterleave8

#endif // __XS3A__
2 changes: 1 addition & 1 deletion lib_mic_array/src/fir_1x16_bit.S
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Expand Up @@ -71,4 +71,4 @@ macc_coeffs:
.short 0x7fff, 0x4000, 0x2000, 0x1000, 0x0800, 0x0400, 0x0200, 0x0100, 0x0080, 0x0040, 0x0020, 0x0010, 0x0008, 0x0004, 0x0002, 0x0001
.cc_bottom fir_1x16_bit.func

#endif
#endif // __XS3A__
2 changes: 2 additions & 0 deletions lib_mic_array/src/mic_array_setup.c
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Expand Up @@ -48,9 +48,11 @@ void mic_array_resources_configure(
static inline
void mic_array_inpw8(const port_t p_pdm_mics)
{
#if defined(__xcore__)
uint32_t tmp;
asm volatile("inpw %0, res[%1], 8" : "=r"(tmp)
: "r" (p_pdm_mics));
#endif // __xcore__
}

void mic_array_pdm_clock_start(
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4 changes: 4 additions & 0 deletions lib_mic_array/src/mic_array_task.cpp
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Expand Up @@ -104,7 +104,11 @@ void default_ma_task_start_decimator_3stg(TMicArray_3stg_decimator& mics, chanen
mics.ThreadEntry();
}

#if defined(__xcore__)
#define CLRSR(c) asm volatile("clrsr %0" : : "n"(c));
#else
#define CLRSR(c) ((void)0)
#endif
#define CLEAR_KEDI() CLRSR(XS1_SR_KEDI_MASK)

template <typename TMics>
Expand Down