mirror of
https://github.com/pkivolowitz/asm_book.git
synced 2026-06-21 07:06:47 +08:00
142 lines
2.3 KiB
ArmAsm
142 lines
2.3 KiB
ArmAsm
.arch armv8-a
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.file "array10.c"
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.text
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.align 2
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.p2align 3,,7
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.global OriginalFindOldestPerson
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.type OriginalFindOldestPerson, %function
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OriginalFindOldestPerson:
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.LFB23:
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.cfi_startproc
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mov x2, x0
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cbz x0, .L5
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mov w4, 24
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smaddl x4, w1, w4, x0
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mov x0, 0
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cmp x2, x4
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bcs .L1
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mov w1, 0
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.p2align 3,,7
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.L4:
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ldr w3, [x2, 16]
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cmp w1, w3
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csel x0, x0, x2, ge
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add x2, x2, 24
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csel w1, w1, w3, ge
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cmp x4, x2
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bhi .L4
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.L1:
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ret
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.p2align 2,,3
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.L5:
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mov x0, 0
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ret
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.cfi_endproc
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.LFE23:
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.size OriginalFindOldestPerson, .-OriginalFindOldestPerson
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.section .rodata.str1.8,"aMS",@progbits,1
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.align 3
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.LC0:
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.string "%d"
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.section .text.startup,"ax",@progbits
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.align 2
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.p2align 3,,7
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.global main
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.type main, %function
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main:
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.LFB24:
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.cfi_startproc
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sub sp, sp, #560
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.cfi_def_cfa_offset 560
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stp x29, x30, [sp]
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.cfi_offset 29, -560
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.cfi_offset 30, -552
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mov x29, sp
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stp x23, x24, [sp, 48]
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.cfi_offset 23, -512
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.cfi_offset 24, -504
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adrp x23, :got:__stack_chk_guard
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add x24, sp, 568
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ldr x0, [x23, #:got_lo12:__stack_chk_guard]
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stp x21, x22, [sp, 32]
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.cfi_offset 21, -528
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.cfi_offset 22, -520
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add x21, sp, 72
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ldr x1, [x0]
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str x1, [sp, 552]
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mov x1,0
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stp x19, x20, [sp, 16]
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.cfi_offset 19, -544
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.cfi_offset 20, -536
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add x20, x21, 16
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mov x19, x21
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mov w22, 5000
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.p2align 3,,7
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.L10:
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bl rand
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and w0, w0, w22
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str w0, [x20], 24
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cmp x20, x24
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bne .L10
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mov x0, x21
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mov w1, 20
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adrp x22, .LC0
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bl FindOldestPerson
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add x21, x21, 480
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mov x20, x0
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add x22, x22, :lo12:.LC0
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.p2align 3,,7
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.L14:
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ldr w2, [x19, 16]
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mov x1, x22
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mov w0, 1
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bl __printf_chk
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cmp x20, x19
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beq .L18
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add x19, x19, 24
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mov w0, 10
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bl putchar
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cmp x19, x21
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bne .L14
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.L13:
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ldr x23, [x23, #:got_lo12:__stack_chk_guard]
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ldr x0, [sp, 552]
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ldr x1, [x23]
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subs x0, x0, x1
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mov x1, 0
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bne .L19
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mov w0, 0
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ldp x29, x30, [sp]
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ldp x19, x20, [sp, 16]
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ldp x21, x22, [sp, 32]
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ldp x23, x24, [sp, 48]
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add sp, sp, 560
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.cfi_remember_state
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.cfi_restore 29
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.cfi_restore 30
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.cfi_restore 23
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.cfi_restore 24
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.cfi_restore 21
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.cfi_restore 22
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.cfi_restore 19
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.cfi_restore 20
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.cfi_def_cfa_offset 0
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ret
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.p2align 2,,3
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.L18:
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.cfi_restore_state
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mov w0, 42
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bl putchar
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add x19, x20, 24
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mov w0, 10
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bl putchar
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cmp x19, x21
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bne .L14
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b .L13
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.L19:
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bl __stack_chk_fail
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.cfi_endproc
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.LFE24:
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.size main, .-main
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.ident "GCC: (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0"
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.section .note.GNU-stack,"",@progbits
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