david.venhoff/QEMU-Nyx-fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

lretq, lcall and ljmp tests in 64 bit mode

Browse Source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1376 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-04-23 17:54:59 +00:00
parent aba9d61e34
commit e06e5259c3
2 changed files with 61 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
tests/test-i386-code16.S
View File

@ -77,21 +77,3 @@ myfunc2:
code16_end:
/* other 32 bits tests */
.code32
.globl func_lret32
func_lret32:
movl $0x87654321, %eax
lret
.globl func_iret32
func_iret32:
movl $0xabcd4321, %eax
iret

68
tests/test-i386.c
View File

@ -1321,8 +1321,25 @@ void test_code16(void)
}
#endif
extern char func_lret32;
extern char func_iret32;
#if defined(__x86_64__)
asm(".globl func_lret\n"
"func_lret:\n"
"movl $0x87654641, %eax\n"
"lretq\n");
#else
asm(".globl func_lret\n"
"func_lret:\n"
"movl $0x87654321, %eax\n"
"lret\n"
".globl func_iret\n"
"func_iret:\n"
"movl $0xabcd4321, %eax\n"
"iret\n");
#endif
extern char func_lret;
extern char func_iret;
void test_misc(void)
{
@ -1334,16 +1351,53 @@ void test_misc(void)
asm ("xlat" : "=a" (res) : "b" (table), "0" (res));
printf("xlat: EAX=" FMTLX "\n", res);
#if !defined(__x86_64__)
#if defined(__x86_64__)
{
static struct __attribute__((packed)) {
uint32_t offset;
uint16_t seg;
} desc;
long cs_sel;
asm volatile ("mov %%cs, %0" : "=r" (cs_sel));
asm volatile ("push %1\n"
"call func_lret\n"
: "=a" (res)
: "r" (cs_sel) : "memory", "cc");
printf("func_lret=" FMTLX "\n", res);
/* NOTE: we assume that &func_lret < 4GB */
desc.offset = (long)&func_lret;
desc.seg = cs_sel;
asm volatile ("xor %%rax, %%rax\n"
"rex64 lcall %1\n"
: "=a" (res)
: "m" (desc)
: "memory", "cc");
printf("func_lret2=" FMTLX "\n", res);
asm volatile ("push %2\n"
"mov $ 1f, %%rax\n"
"push %%rax\n"
"ljmp %1\n"
"1:\n"
: "=a" (res)
: "m" (desc), "b" (cs_sel)
: "memory", "cc");
printf("func_lret3=" FMTLX "\n", res);
}
#else
asm volatile ("push %%cs ; call %1"
: "=a" (res)
: "m" (func_lret32): "memory", "cc");
printf("func_lret32=" FMTLX "\n", res);
: "m" (func_lret): "memory", "cc");
printf("func_lret=" FMTLX "\n", res);
asm volatile ("pushf ; push %%cs ; call %1"
: "=a" (res)
: "m" (func_iret32): "memory", "cc");
printf("func_iret32=" FMTLX "\n", res);
: "m" (func_iret): "memory", "cc");
printf("func_iret=" FMTLX "\n", res);
#endif
#if defined(__x86_64__)