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Tidy up inline assembly. No functional change.

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This commit is contained in:
Jung-uk Kim 2012-11-30 00:59:37 +00:00
parent d588c1f9ba
commit 231ac244f8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=243685
2 changed files with 16 additions and 16 deletions
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16
sys/amd64/pci/pci_cfgreg.c
View File

@ -324,15 +324,15 @@ pciereg_cfgread(int bus, unsigned slot, unsigned func, unsigned reg,
switch (bytes) {
case 4:
__asm __volatile("mov %1, %%eax" : "=a" (data)
__asm __volatile("movl %1, %0" : "=a" (data)
: "m" (*(uint32_t *)va));
break;
case 2:
__asm __volatile("movzwl %1, %%eax" : "=a" (data)
__asm __volatile("movzwl %1, %0" : "=a" (data)
: "m" (*(uint16_t *)va));
break;
case 1:
__asm __volatile("movzbl %1, %%eax" : "=a" (data)
__asm __volatile("movzbl %1, %0" : "=a" (data)
: "m" (*(uint8_t *)va));
break;
}
@ -354,16 +354,16 @@ pciereg_cfgwrite(int bus, unsigned slot, unsigned func, unsigned reg, int data,
switch (bytes) {
case 4:
__asm __volatile("mov %%eax, %0" : "=m" (*(uint32_t *)va)
__asm __volatile("movl %1, %0" : "=m" (*(uint32_t *)va)
: "a" (data));
break;
case 2:
__asm __volatile("mov %%ax, %0" : "=m" (*(uint16_t *)va)
: "a" (data));
__asm __volatile("movw %1, %0" : "=m" (*(uint16_t *)va)
: "a" ((uint16_t)data));
break;
case 1:
__asm __volatile("mov %%al, %0" : "=m" (*(uint8_t *)va)
: "a" (data));
__asm __volatile("movb %1, %0" : "=m" (*(uint8_t *)va)
: "a" ((uint8_t)data));
break;
}
}

16
sys/i386/pci/pci_cfgreg.c
View File

@ -681,15 +681,15 @@ pciereg_cfgread(int bus, unsigned slot, unsigned func, unsigned reg,
switch (bytes) {
case 4:
__asm __volatile("mov %1, %%eax" : "=a" (data)
__asm __volatile("movl %1, %0" : "=a" (data)
: "m" (*(uint32_t *)va));
break;
case 2:
__asm __volatile("movzwl %1, %%eax" : "=a" (data)
__asm __volatile("movzwl %1, %0" : "=a" (data)
: "m" (*(uint16_t *)va));
break;
case 1:
__asm __volatile("movzbl %1, %%eax" : "=a" (data)
__asm __volatile("movzbl %1, %0" : "=a" (data)
: "m" (*(uint8_t *)va));
break;
}
@ -718,16 +718,16 @@ pciereg_cfgwrite(int bus, unsigned slot, unsigned func, unsigned reg, int data,
switch (bytes) {
case 4:
__asm __volatile("mov %%eax, %0" : "=m" (*(uint32_t *)va)
__asm __volatile("movl %1, %0" : "=m" (*(uint32_t *)va)
: "a" (data));
break;
case 2:
__asm __volatile("mov %%ax, %0" : "=m" (*(uint16_t *)va)
: "a" (data));
__asm __volatile("movw %1, %0" : "=m" (*(uint16_t *)va)
: "a" ((uint16_t)data));
break;
case 1:
__asm __volatile("mov %%al, %0" : "=m" (*(uint8_t *)va)
: "a" (data));
__asm __volatile("movb %1, %0" : "=m" (*(uint8_t *)va)
: "a" ((uint8_t)data));
break;
}