diff options
| author | Harald van Dijk <harald@gigawatt.nl> | 2020-06-16 18:53:57 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2020-06-17 15:37:03 +0200 |
| commit | 58682bedb6cfd975ed7a1424f913eca0297e792d (patch) | |
| tree | a09106799e7642097dd3cdcb35b8686712d63220 | |
| parent | 5394f605bce7cb3fce0b9ef35890f938f6699244 (diff) | |
| download | alsa-lib-58682bedb6cfd975ed7a1424f913eca0297e792d.tar.gz | |
pcm: dmic: assembly: add x32 support.
x32 is the x86_64 ABI that uses 32-bit pointers, so requires loading
addresses into edi/esi/ebx rather than rdi/rsi/rbx.
Note that instructions such as movl %eax, (%rdi) do not require
updating, as loading an address into %edi zeroes the high bits, causing
the full %rdi register to hold a valid address.
Signed-off-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | src/pcm/pcm_dmix_x86_64.h | 54 |
1 files changed, 45 insertions, 9 deletions
diff --git a/src/pcm/pcm_dmix_x86_64.h b/src/pcm/pcm_dmix_x86_64.h index aef5d90c..1932be3e 100644 --- a/src/pcm/pcm_dmix_x86_64.h +++ b/src/pcm/pcm_dmix_x86_64.h @@ -58,9 +58,15 @@ static void MIX_AREAS_16(unsigned int size, /* * initialization, load RSI, RDI, RBX registers */ +#ifndef _ILP32 "\tmovq %[dst], %%rdi\n" "\tmovq %[src], %%rsi\n" "\tmovq %[sum], %%rbx\n" +#else + "\tmovl %[dst], %%edi\n" + "\tmovl %[src], %%esi\n" + "\tmovl %[sum], %%ebx\n" +#endif /* * while (size-- > 0) { @@ -109,9 +115,15 @@ static void MIX_AREAS_16(unsigned int size, /* * while (size-- > 0) */ - "\tadd %[dst_step], %%rdi\n" - "\tadd %[src_step], %%rsi\n" - "\tadd %[sum_step], %%rbx\n" +#ifndef _ILP32 + "\taddq %[dst_step], %%rdi\n" + "\taddq %[src_step], %%rsi\n" + "\taddq %[sum_step], %%rbx\n" +#else + "\taddl %[dst_step], %%edi\n" + "\taddl %[src_step], %%esi\n" + "\taddl %[sum_step], %%ebx\n" +#endif "\tdecl %[size]\n" "\tjnz 1b\n" @@ -168,9 +180,15 @@ static void MIX_AREAS_32(unsigned int size, /* * initialization, load RSI, RDI, RBX registers */ +#ifndef _ILP32 "\tmovq %[dst], %%rdi\n" "\tmovq %[src], %%rsi\n" "\tmovq %[sum], %%rbx\n" +#else + "\tmovl %[dst], %%edi\n" + "\tmovl %[src], %%esi\n" + "\tmovl %[sum], %%ebx\n" +#endif /* * while (size-- > 0) { @@ -241,9 +259,15 @@ static void MIX_AREAS_32(unsigned int size, /* * while (size-- > 0) */ - "\tadd %[dst_step], %%rdi\n" - "\tadd %[src_step], %%rsi\n" - "\tadd %[sum_step], %%rbx\n" +#ifndef _ILP32 + "\taddq %[dst_step], %%rdi\n" + "\taddq %[src_step], %%rsi\n" + "\taddq %[sum_step], %%rbx\n" +#else + "\taddl %[dst_step], %%edi\n" + "\taddl %[src_step], %%esi\n" + "\taddl %[sum_step], %%ebx\n" +#endif "\tdecl %[size]\n" "\tjnz 1b\n" @@ -292,9 +316,15 @@ static void MIX_AREAS_24(unsigned int size, /* * initialization, load RSI, RDI, RBX registers */ +#ifndef _ILP32 "\tmovq %[dst], %%rdi\n" "\tmovq %[src], %%rsi\n" "\tmovq %[sum], %%rbx\n" +#else + "\tmovl %[dst], %%edi\n" + "\tmovl %[src], %%esi\n" + "\tmovl %[sum], %%ebx\n" +#endif /* * while (size-- > 0) { @@ -353,9 +383,15 @@ static void MIX_AREAS_24(unsigned int size, /* * while (size-- > 0) */ - "\tadd %[dst_step], %%rdi\n" - "\tadd %[src_step], %%rsi\n" - "\tadd %[sum_step], %%rbx\n" +#ifndef _ILP32 + "\taddq %[dst_step], %%rdi\n" + "\taddq %[src_step], %%rsi\n" + "\taddq %[sum_step], %%rbx\n" +#else + "\taddl %[dst_step], %%edi\n" + "\taddl %[src_step], %%esi\n" + "\taddl %[sum_step], %%ebx\n" +#endif "\tdecl %[size]\n" "\tjnz 1b\n" |