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Last change
on this file since 1 was 1, checked in by vboxsync, 55 years ago |
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import
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-
Property svn:eol-style
set to
native
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File size:
1.6 KB
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| 1 | .code16
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| 2 | .globl code16_start
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| 3 | .globl code16_end
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| 4 |
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| 5 | CS_SEG = 0xf
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| 6 |
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| 7 | code16_start:
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| 8 |
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| 9 | .globl code16_func1
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| 10 |
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| 11 | /* basic test */
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| 12 | code16_func1 = . - code16_start
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| 13 | mov $1, %eax
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| 14 | data32 lret
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| 15 |
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| 16 | /* test push/pop in 16 bit mode */
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| 17 | .globl code16_func2
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| 18 | code16_func2 = . - code16_start
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| 19 | xor %eax, %eax
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| 20 | mov $0x12345678, %ebx
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| 21 | movl %esp, %ecx
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| 22 | push %bx
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| 23 | subl %esp, %ecx
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| 24 | pop %ax
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| 25 | data32 lret
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| 26 |
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| 27 | /* test various jmp opcodes */
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| 28 | .globl code16_func3
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| 29 | code16_func3 = . - code16_start
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| 30 | jmp 1f
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| 31 | nop
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| 32 | 1:
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| 33 | mov $4, %eax
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| 34 | mov $0x12345678, %ebx
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| 35 | xor %bx, %bx
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| 36 | jz 2f
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| 37 | add $2, %ax
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| 38 | 2:
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| 39 |
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| 40 | call myfunc
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| 41 |
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| 42 | lcall $CS_SEG, $(myfunc2 - code16_start)
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| 43 |
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| 44 | ljmp $CS_SEG, $(myjmp1 - code16_start)
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| 45 | myjmp1_next:
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| 46 |
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| 47 | cs lcall myfunc2_addr - code16_start
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| 48 |
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| 49 | cs ljmp myjmp2_addr - code16_start
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| 50 | myjmp2_next:
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| 51 |
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| 52 | data32 lret
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| 53 |
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| 54 | myfunc2_addr:
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| 55 | .short myfunc2 - code16_start
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| 56 | .short CS_SEG
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| 57 |
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| 58 | myjmp2_addr:
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| 59 | .short myjmp2 - code16_start
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| 60 | .short CS_SEG
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| 61 |
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| 62 | myjmp1:
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| 63 | add $8, %ax
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| 64 | jmp myjmp1_next
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| 65 |
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| 66 | myjmp2:
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| 67 | add $16, %ax
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| 68 | jmp myjmp2_next
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| 69 |
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| 70 | myfunc:
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| 71 | add $1, %ax
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| 72 | ret
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| 73 |
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| 74 | myfunc2:
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| 75 | add $4, %ax
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| 76 | lret
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| 77 |
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| 78 |
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| 79 | code16_end:
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| 80 |
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| 81 |
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| 82 | /* other 32 bits tests */
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| 83 | .code32
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| 84 |
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| 85 | .globl func_lret32
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| 86 | func_lret32:
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| 87 | movl $0x87654321, %eax
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| 88 | lret
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| 89 |
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| 90 | .globl func_iret32
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| 91 | func_iret32:
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| 92 | movl $0xabcd4321, %eax
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| 93 | iret
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| 94 |
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| 95 |
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| 96 |
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| 97 |
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