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pcm: dmix: assembly: change the token by symbolic names

Browse source 
It eases the refactoring of assembly chunk since we can now
add/remove/move entries without worrying about maintaining
the token numbering in the template.

Note: does not impact the binary output.

Signed-off-by: Frédéric Recoules <frederic.recoules@orange.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Frédéric Recoules 2020-05-06 19:19:20 +02:00 • committed by Takashi Iwai
parent 21e2fc3857
commit b315f21bf7
2 changed files with 124 additions and 116 deletions
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93
src/pcm/pcm_dmix_x86_64.h
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@ -48,18 +48,18 @@ static void MIX_AREAS_16(unsigned int size,
__asm__ __volatile__ (
"\n"
"\tmovq %%rbx, %7\n"
"\tmovq %%rbx, %[old_rbx]\n"
/*
* initialization, load RSI, RDI, RBX registers
*/
"\tmovq %1, %%rdi\n"
"\tmovq %2, %%rsi\n"
"\tmovq %3, %%rbx\n"
"\tmovq %[dst], %%rdi\n"
"\tmovq %[src], %%rsi\n"
"\tmovq %[sum], %%rbx\n"
/*
* while (size-- > 0) {
*/
"\tcmpl $0, %0\n"
"\tcmpl $0, %[size]\n"
"jz 6f\n"
"\t.p2align 4,,15\n"
@ -103,21 +103,22 @@ static void MIX_AREAS_16(unsigned int size,
/*
* while (size-- > 0)
*/
"\tadd %4, %%rdi\n"
"\tadd %5, %%rsi\n"
"\tadd %6, %%rbx\n"
"\tdecl %0\n"
"\tadd %[dst_step], %%rdi\n"
"\tadd %[src_step], %%rsi\n"
"\tadd %[sum_step], %%rbx\n"
"\tdecl %[size]\n"
"\tjnz 1b\n"
"6:"
"\temms\n"
"\tmovq %7, %%rbx\n"
"\tmovq %[old_rbx], %%rbx\n"
: /* no output regs */
: "m" (size), "m" (dst), "m" (src),
"m" (sum), "m" (dst_step), "m" (src_step),
"m" (sum_step), "m" (old_rbx)
: [size] "m" (size),
[dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
[dst_step] "m" (dst_step), [src_step] "m" (src_step),
[sum_step] "m" (sum_step), [old_rbx] "m" (old_rbx)
: "rsi", "rdi", "edx", "ecx", "eax"
);
}
@ -143,18 +144,18 @@ static void MIX_AREAS_32(unsigned int size,
__asm__ __volatile__ (
"\n"
"\tmovq %%rbx, %7\n"
"\tmovq %%rbx, %[old_rbx]\n"
/*
* initialization, load ESI, EDI, EBX registers
* initialization, load RSI, RDI, RBX registers
*/
"\tmovq %1, %%rdi\n"
"\tmovq %2, %%rsi\n"
"\tmovq %3, %%rbx\n"
"\tmovq %[dst], %%rdi\n"
"\tmovq %[src], %%rsi\n"
"\tmovq %[sum], %%rbx\n"
/*
* while (size-- > 0) {
*/
"\tcmpl $0, %0\n"
"\tcmpl $0, %[size]\n"
"jz 6f\n"
"\t.p2align 4,,15\n"
@ -220,19 +221,20 @@ static void MIX_AREAS_32(unsigned int size,
/*
* while (size-- > 0)
*/
"\tadd %4, %%rdi\n"
"\tadd %5, %%rsi\n"
"\tadd %6, %%rbx\n"
"\tdecl %0\n"
"\tadd %[dst_step], %%rdi\n"
"\tadd %[src_step], %%rsi\n"
"\tadd %[sum_step], %%rbx\n"
"\tdecl %[size]\n"
"\tjnz 1b\n"
"6:"
"\tmovq %7, %%rbx\n"
"\tmovq %[old_rbx], %%rbx\n"
: /* no output regs */
: "m" (size), "m" (dst), "m" (src),
"m" (sum), "m" (dst_step), "m" (src_step),
"m" (sum_step), "m" (old_rbx)
: [size] "m" (size),
[dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
[dst_step] "m" (dst_step), [src_step] "m" (src_step),
[sum_step] "m" (sum_step), [old_rbx] "m" (old_rbx)
: "rsi", "rdi", "edx", "ecx", "eax"
);
}
@ -258,18 +260,18 @@ static void MIX_AREAS_24(unsigned int size,
__asm__ __volatile__ (
"\n"
"\tmovq %%rbx, %7\n"
"\tmovq %%rbx, %[old_rbx]\n"
/*
* initialization, load ESI, EDI, EBX registers
* initialization, load RSI, RDI, RBX registers
*/
"\tmovq %1, %%rdi\n"
"\tmovq %2, %%rsi\n"
"\tmovq %3, %%rbx\n"
"\tmovq %[dst], %%rdi\n"
"\tmovq %[src], %%rsi\n"
"\tmovq %[sum], %%rbx\n"
/*
* while (size-- > 0) {
*/
"\tcmpl $0, %0\n"
"\tcmpl $0, %[size]\n"
"jz 6f\n"
"\t.p2align 4,,15\n"
@ -316,26 +318,27 @@ static void MIX_AREAS_24(unsigned int size,
"\tmovw %%ax, (%%rdi)\n"
"\tshrl $16, %%eax\n"
"\tmovb %%al, 2(%%rdi)\n"
"\tcmpl %%ecx, (%%rbx)\n"
"\tjnz 3b\n"
/*
* while (size-- > 0)
*/
"\tadd %4, %%rdi\n"
"\tadd %5, %%rsi\n"
"\tadd %6, %%rbx\n"
"\tdecl %0\n"
"\tadd %[dst_step], %%rdi\n"
"\tadd %[src_step], %%rsi\n"
"\tadd %[sum_step], %%rbx\n"
"\tdecl %[size]\n"
"\tjnz 1b\n"
"6:"
"\tmovq %7, %%rbx\n"
"\tmovq %[old_rbx], %%rbx\n"
: /* no output regs */
: "m" (size), "m" (dst), "m" (src),
"m" (sum), "m" (dst_step), "m" (src_step),
"m" (sum_step), "m" (old_rbx)
: [size] "m" (size),
[dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
[dst_step] "m" (dst_step), [src_step] "m" (src_step),
[sum_step] "m" (sum_step), [old_rbx] "m" (old_rbx)
: "rsi", "rdi", "edx", "ecx", "eax"
);
}