47 строки
1.3 KiB
PHP
47 строки
1.3 KiB
PHP
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call _xamarin_get_frame_length
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# r12 holds the amount of stack space we need
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movq %rax, %r12
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# first align stack requirement to 16 bytes
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addq $15,%r12
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shrq $4,%r12
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salq $4,%r12
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# then make space for the arguments
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subq %r12, %rsp
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# copy arguments from old location in the stack to new location in the stack
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# %rcx will hold the amount of bytes left to copy
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# %rsi the current src location
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# %rdi the current dst location
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movq %r12, %rcx # rcx = frame_length
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leaq 16(%rbp),%rsi # rsi = address of first argument we got
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movq %rsp,%rdi # rdi = address of the bottom of the stack
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L_start:
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cmpq $0,%rcx #
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je L_end # while (left != 0) {
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subq $8,%rcx # len -= 8
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movq (%rsi,%rcx),%rax # tmp = src [len]
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movq %rax,(%rdi,%rcx) # dst [len] = tmp
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jmp L_start # }
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L_end:
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movq -16(%rbp), %rdi
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movq -24(%rbp), %rsi
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movq -32(%rbp), %rdx
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movq -40(%rbp), %rcx
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movq -48(%rbp), %r8
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movq -56(%rbp), %r9
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movq -64(%rbp), %rax
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/* skip 8 bytes so that this is 16-byte aligned */
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movaps -80(%rbp), %xmm0
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movaps -96(%rbp), %xmm1
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movaps -112(%rbp), %xmm2
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movaps -128(%rbp), %xmm3
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movaps -144(%rbp), %xmm4
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movaps -160(%rbp), %xmm5
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movaps -176(%rbp), %xmm6
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movaps -192(%rbp), %xmm7
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