qemu/tests/test-i386-code16.S
bellard e06e5259c3 lretq, lcall and ljmp tests in 64 bit mode
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1376 c046a42c-6fe2-441c-8c8c-71466251a162
2005-04-23 17:54:59 +00:00

80 lines
1.3 KiB
ArmAsm

.code16
.globl code16_start
.globl code16_end
CS_SEG = 0xf
code16_start:
.globl code16_func1
/* basic test */
code16_func1 = . - code16_start
mov $1, %eax
data32 lret
/* test push/pop in 16 bit mode */
.globl code16_func2
code16_func2 = . - code16_start
xor %eax, %eax
mov $0x12345678, %ebx
movl %esp, %ecx
push %bx
subl %esp, %ecx
pop %ax
data32 lret
/* test various jmp opcodes */
.globl code16_func3
code16_func3 = . - code16_start
jmp 1f
nop
1:
mov $4, %eax
mov $0x12345678, %ebx
xor %bx, %bx
jz 2f
add $2, %ax
2:
call myfunc
lcall $CS_SEG, $(myfunc2 - code16_start)
ljmp $CS_SEG, $(myjmp1 - code16_start)
myjmp1_next:
cs lcall myfunc2_addr - code16_start
cs ljmp myjmp2_addr - code16_start
myjmp2_next:
data32 lret
myfunc2_addr:
.short myfunc2 - code16_start
.short CS_SEG
myjmp2_addr:
.short myjmp2 - code16_start
.short CS_SEG
myjmp1:
add $8, %ax
jmp myjmp1_next
myjmp2:
add $16, %ax
jmp myjmp2_next
myfunc:
add $1, %ax
ret
myfunc2:
add $4, %ax
lret
code16_end: