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- .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:
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