search for: ebx

...5 + + # rdi = arg #1 (ctx, MD5_CTX pointer) + # rsi = arg #2 (ptr, data pointer) + # rdx = arg #3 (nbr, number of 16-word blocks to process) + mov %rdi, %rbp # rbp = ctx + shl $6, %rdx # rdx = nbr in bytes + lea (%rsi,%rdx), %rdi # rdi = end + mov 0*4(%rbp), %eax # eax = ctx->A + mov 1*4(%rbp), %ebx # ebx = ctx->B + mov 2*4(%rbp), %ecx # ecx = ctx->C + mov 3*4(%rbp), %edx # edx = ctx->D + # end is 'rdi' + # ptr is 'rsi' + # A is 'eax' + # B is 'ebx' + # C is 'ecx' + # D is 'edx' + + cmp %rdi, %rsi # cmp end with ptr + je 1f # jmp if ptr...

...ccOO8Chb.s: Assembler messages: /tmp/ccOO8Chb.s:2495: Error: suffix or operands invalid for `shr' shrl $PAGE_SHIFT,%ecx /tmp/ccOO8Chb.s:2496: Error: suffix or operands invalid for `shr' /tmp/ccOO8Chb.s:2496: Error: suffix or operands invalid for `shl' movl %eax, %ebx ; shrl $PAGE_SHIFT, %ebx ; shll $PTESHIFT,%ebx ; addl (( KPTphys )-KERNBASE) ,%ebx ; orl $0x001 ,%eax ; orl %edx ,%eax ; 1: movl %eax,(%ebx) ; addl $PAGE_SIZE,%eax ; addl $PTESIZE,%ebx ; loop 1b...

...e s = 0.0; for (int i = 0; i != k;++i) { s += sum(&x[i], 18); p[i] = 5; // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx } return s; } ====== Output A ====== ====================== foo: # @foo .Ltmp12: .cfi_startproc # BB#0: pushl %ebx .Ltmp13: .cfi_def_cfa_offset 8 pushl %edi .Ltmp14: .cfi_def_cfa_offset 12 pushl %esi .Ltmp15: .cfi_def_cfa_offset 16 subl $88, %esp .Ltmp16: .cfi_def_cfa_offset 104 .Ltmp17: .cfi_offset %esi, -16 .Ltmp18: .cfi_offset %edi, -12 .Ltmp19: .cfi_offset %ebx, -8 pxor %xmm0, %xmm0 movl 112(%es...

....000000000 +0200 @@ -76,107 +76,73 @@ push edi sub esp, byte 16 ; qword [esp] == temp space for loading FLAC__uint64s to FPU regs - ; dword [esp] == last_error_0 - ; dword [esp + 4] == last_error_1 - ; dword [esp + 8] == last_error_2 - ; dword [esp + 12] == last_error_3 - ; eax == error ; ebx == &data[i] ; ecx == loop counter (i) - ; edx == temp - ; edi == save ; ebp == order ; mm0 == total_error_1:total_error_0 - ; mm1 == total_error_3:total_error_2 - ; mm2 == 0:total_error_4 - ; mm3/4 == 0:unpackarea - ; mm5 == abs(error_1):abs(error_0) - ; mm5 == abs(error_3):abs(error_2) +...

...e s = 0.0; for (int i = 0; i != k;++i) { s += sum(&x[i], 18); p[i] = 5; // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx } return s; } ====== Output A ====== ====================== foo: # @foo .Ltmp12: .cfi_startproc # BB#0: pushl %ebx .Ltmp13: .cfi_def_cfa_offset 8 pushl %edi .Ltmp14: .cfi_def_cfa_offset 12 pushl %esi .Ltmp15: .cfi_def_cfa_offset 16 subl $88, %esp .Ltmp16: .cfi_def_cfa_offset 104 .Ltmp17: .cfi_offset %esi, -16 .Ltmp18: .cfi_offset %edi, -12 .Ltmp19: .cfi_offset %ebx, -8 pxor %xmm0, %xmm0 movl 112(%es...

...tr -48h var_40 = qword ptr -40h var_34 = dword ptr -34h push rbp push r15 push r14 push r13 push r12 push rbx sub rsp, 18h mov ebx, 0FFFFFFFFh cmp edi, 2 jnz loc_100000F29 mov rdi, [rsi+8] ; char * xor r14d, r14d xor esi, esi ; char ** mov edx, 0Ah ; int call _strtol...

...t; >> push rbp >> push r15 >> push r14 >> push r13 >> push r12 >> push rbx >> sub rsp, 18h >> mov ebx, 0FFFFFFFFh >> cmp edi, 2 >> jnz loc_100000F29 >> mov rdi, [rsi+8] ; char * >> xor r14d, r14d >> xor esi, esi ; char ** >> mov edx, 0...

...#define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */ /* - * Generic CPUID function - * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx - * resulting in stale register contents being returned. - */ -static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) -{ - __asm__("cpuid" - : "=a" (*eax), - "=b" (*ebx), - "=c" (*ecx), - "=d" (*edx) - : "0" (op), "c"(0)); -} - -/* Some CPUID calls want 'count' to be placed in ecx */ -sta...

...#define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */ /* - * Generic CPUID function - * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx - * resulting in stale register contents being returned. - */ -static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) -{ - __asm__("cpuid" - : "=a" (*eax), - "=b" (*ebx), - "=c" (*ecx), - "=d" (*edx) - : "0" (op), "c"(0)); -} - -/* Some CPUID calls want 'count' to be placed in ecx */ -sta...

...push r15 >>>> push r14 >>>> push r13 >>>> push r12 >>>> push rbx >>>> sub rsp, 18h >>>> mov ebx, 0FFFFFFFFh >>>> cmp edi, 2 >>>> jnz loc_100000F29 >>>> mov rdi, [rsi+8] ; char * >>>> xor r14d, r14d >>>> xor esi, esi ; char **...

...================================= --- 2007-08-08.orig/xen/arch/x86/hvm/hvm.c 2007-08-06 15:08:40.000000000 +0200 +++ 2007-08-08/xen/arch/x86/hvm/hvm.c 2007-08-08 11:45:25.000000000 +0200 @@ -614,37 +614,38 @@ void hvm_cpuid(unsigned int input, unsig { if ( !cpuid_hypervisor_leaves(input, eax, ebx, ecx, edx) ) { + struct vcpu *v = current; + cpuid(input, eax, ebx, ecx, edx); - if ( input == 0x00000001 ) + switch ( input ) { - struct vcpu *v = current; - - clear_bit(X86_FEATURE_MWAIT & 31, ecx); + case 0x00000001:...

...================================================= --- clean-start.orig/include/asm-x86_64/msr.h +++ clean-start/include/asm-x86_64/msr.h @@ -2,6 +2,62 @@ #define X86_64_MSR_H 1 #ifndef __ASSEMBLY__ +#include <asm/errno.h> + +static inline void native_cpuid(unsigned int *eax, unsigned int *ebx, + unsigned int *ecx, unsigned int *edx) +{ + __asm__("cpuid" + : "=a" (*eax), + "=b" (*ebx), + "=c" (*ecx), + "=d" (*edx) + : "0" (*eax), "2" (*ecx)); +} + +/* wrmsr with exception handling */ +static inline int n...

...================================================= --- clean-start.orig/include/asm-x86_64/msr.h +++ clean-start/include/asm-x86_64/msr.h @@ -2,6 +2,62 @@ #define X86_64_MSR_H 1 #ifndef __ASSEMBLY__ +#include <asm/errno.h> + +static inline void native_cpuid(unsigned int *eax, unsigned int *ebx, + unsigned int *ecx, unsigned int *edx) +{ + __asm__("cpuid" + : "=a" (*eax), + "=b" (*ebx), + "=c" (*ecx), + "=d" (*edx) + : "0" (*eax), "2" (*ecx)); +} + +/* wrmsr with exception handling */ +static inline int n...

...;s asm!(… : "intel") so I'm assuming that's what rust is using, although I didn't verify this). Here's the example static int foo; static int bar; void _start(void) { asm volatile("movl %0, %%eax" : : "i"(&foo)); asm volatile("movl %0, %%ebx" : : "i"(&bar)); } This produces define void @_start() #0 { call void asm sideeffect "movl $0, %eax", "i,~{dirflag},~{fpsr},~{flags}"(i32* @foo) #1, !srcloc !3 call void asm sideeffect "movl $0, %ebx", "i,~{dirflag},~{fpsr},~{flags}"(i...

The first and third patches are cleaned up versions of an earlier v3 submission by Yang. 1: Nested VMX: check VMX capability before read VMX related MSRs 2: VMX: clean up capability checks 3: Nested VMX: fix IA32_VMX_CR4_FIXED1 msr emulation 4: x86: make hvm_cpuid() tolerate NULL pointers Signed-off-by: Jan Beulich <jbeulich@suse.com>

Hi, I am looking for a solution to boot MY system on any PC. To store most of the system and all of my data I want to use an USB storage (in my case an external USB harddisk (2.0 capable)). Since booting off an USB device is not an universal thing I would prefer to have a boot disk with a minimal system - just enough to load most (all?) of the system from the attached USB device. Is this an

...uming that's what rust is using, although I didn't verify this). > > Here's the example > > static int foo; > static int bar; > > void _start(void) { > asm volatile("movl %0, %%eax" : : "i"(&foo)); > asm volatile("movl %0, %%ebx" : : "i"(&bar)); > } > > This produces > define void @_start() #0 { > call void asm sideeffect "movl $0, %eax", "i,~{dirflag},~{fpsr},~{flags}"(i32* @foo) #1, !srcloc !3 > call void asm sideeffect "movl $0, %ebx", "i,~{dir...

...e_cpuid : "0" (*eax), "2" (*ecx)); } -/* - * Generic CPUID function - * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx - * resulting in stale register contents being returned. - */ -static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) -{ - *eax = op; - *ecx = 0; - __cpuid(eax, ebx, ecx, edx); -} - -/* Some CPUID calls want 'count' to be placed in ecx */ -static inline void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx, - int *edx) -{ - *eax = op; - *ecx = coun...

...e_cpuid : "0" (*eax), "2" (*ecx)); } -/* - * Generic CPUID function - * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx - * resulting in stale register contents being returned. - */ -static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) -{ - *eax = op; - *ecx = 0; - __cpuid(eax, ebx, ecx, edx); -} - -/* Some CPUID calls want 'count' to be placed in ecx */ -static inline void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx, - int *edx) -{ - *eax = op; - *ecx = coun...

...ting with compiling GRUB2 with clang using integrated as, I found out that it generates a 16-bit code bigger than gas counterpart and result gets too big for size constraints of bootsector. This was traced mainly to 2 problems. 32-bit access to 16-bit addresses. source: movl LOCAL(kernel_sector), %ebx movl %ebx, 8(%si) clang: 7cbc: 67 66 8b 1d 5c 7c 00 addr32 mov 0x7c5c,%ebx 7cc3: 00 7cc4: 66 89 5c 08 mov %ebx,0x8(%si) gas: 7cbc: 66 8b 1e 5c 7c mov 0x7c5c,%ebx 7cc1: 66 89 5c 08 mov %ebx,0x8(%si) 32-bit jump. source: jnb LOCAL(floppy_pro...