root / tests / test-i386-code16.S @ 5a91de8c
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.code16 |
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.globl code16_start |
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.globl code16_end |
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CS_SEG = 0xf |
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code16_start: |
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.globl code16_func1 |
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/* basic test */ |
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code16_func1 = . - code16_start |
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mov $1, %eax |
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data32 lret |
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/* test push/pop in 16 bit mode */ |
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.globl code16_func2 |
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code16_func2 = . - code16_start |
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xor %eax, %eax |
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mov $0x12345678, %ebx |
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movl %esp, %ecx |
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push %bx |
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subl %esp, %ecx |
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pop %ax |
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data32 lret |
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/* test various jmp opcodes */ |
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.globl code16_func3 |
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code16_func3 = . - code16_start |
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jmp 1f |
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nop |
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1: |
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mov $4, %eax |
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mov $0x12345678, %ebx |
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xor %bx, %bx |
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jz 2f |
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add $2, %ax |
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2: |
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call myfunc |
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lcall $CS_SEG, $(myfunc2 - code16_start) |
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ljmp $CS_SEG, $(myjmp1 - code16_start) |
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myjmp1_next: |
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cs lcall myfunc2_addr - code16_start |
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cs ljmp myjmp2_addr - code16_start |
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myjmp2_next: |
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data32 lret |
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myfunc2_addr: |
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.short myfunc2 - code16_start |
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.short CS_SEG |
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myjmp2_addr: |
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.short myjmp2 - code16_start |
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.short CS_SEG |
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myjmp1: |
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add $8, %ax |
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jmp myjmp1_next |
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myjmp2: |
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add $16, %ax |
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jmp myjmp2_next |
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myfunc: |
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add $1, %ax |
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ret |
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myfunc2: |
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add $4, %ax |
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lret |
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code16_end: |
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