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authorAraq <rumpf_a@web.de>2013-03-17 16:44:31 +0100
committerAraq <rumpf_a@web.de>2013-03-17 16:44:31 +0100
commit3703bb929b6214fa9fcafe32d03f7b0c46907e54 (patch)
treea545908ad1f99d4f7f0d9d3042fcc35a55ad7666 /compiler/nversion.nim
parentd9149635393d6c2de589d645b541793da2f5cc9b (diff)
parentaf7e862a06204291a9cb39a9f6583bb721fe208c (diff)
downloadNim-3703bb929b6214fa9fcafe32d03f7b0c46907e54.tar.gz
Merge branch 'master' of github.com:Araq/Nimrod
Diffstat (limited to 'compiler/nversion.nim')
-rw-r--r--[-rwxr-xr-x]compiler/nversion.nim0


1 files changed, 0 insertions, 0 deletions
diff --git a/compiler/nversion.nim b/compiler/nversion.nim
index d60a7a445..d60a7a445 100755..100644
--- a/compiler/nversion.nim
+++ b/compiler/nversion.nim

 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-02-08 17:47:32 +0000


 


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;
;
;            Nim's Runtime Library
;        (c) Copyright 2015 Rokas Kupstys
;
;    See the file "copying.txt", included in this
;    distribution, for details about the copyright.
;

format ELF64

section ".text" executable align 16
public narch_getRegisters
public narch_setjmp
public narch_longjmp
public narch_coroSwitchStack
public narch_coroRestoreStack


narch_getRegisters:
    mov   [rdi], rax
    mov   [rdi+8], rbx
    mov   [rdi+10h], rcx
    mov   [rdi+18h], rdx
    mov   [rdi+20h], rsi
    mov   [rdi+28h], rdi
    mov   [rdi+30h], rbp
    mov   [rdi+38h], rsp
    mov   rax, [rsp]
    mov   [rdi+40h], rax      ; rip
    mov   [rdi+48h], r8
    mov   [rdi+50h], r9
    mov   [rdi+58h], r10
    mov   [rdi+60h], r11
    mov   [rdi+68h], r12
    mov   [rdi+70h], r13
    mov   [rdi+78h], r14
    mov   [rdi+80h], r15
    ret


narch_setjmp:
    ; Based on code from musl libc Copyright © 2005-2014 Rich Felker, et al.
    mov   [rdi], rbx          ; rdi is jmp_buf, move registers onto it
    mov   [rdi+8], rbp
    mov   [rdi+10h], r12
    mov   [rdi+18h], r13
    mov   [rdi+20h], r14
    mov   [rdi+28h], r15
    lea   rdx, [rsp+8]        ; this is our rsp WITHOUT current ret addr
    mov   [rdi+30h], rdx
    mov   rdx, [rsp]          ; save return addr ptr for new rip
    mov   [rdi+38h], rdx
    xor   rax, rax            ; always return 0
    ret


narch_longjmp:
    ; Based on code from musl libc Copyright © 2005-2014 Rich Felker, et al.
    mov   rax, rsi            ; val will be longjmp return
    test  rax, rax
    jnz   @F
    inc   rax                 ; if val==0, val=1 per longjmp semantics
@@:
    mov   rbx, [rdi]          ; rdi is the jmp_buf, restore regs from it
    mov   rbp, [rdi+8]
    mov   r12, [rdi+10h]
    mov   r13, [rdi+18h]
    mov   r14, [rdi+20h]
    mov   r15, [rdi+28h]
    mov   rsp, [rdi+30h]      ; this ends up being the stack pointer
    mov   rdx, [rdi+38h]      ; this is the instruction pointer
    jmp   rdx                 ; goto saved address without altering rsp


narch_coroSwitchStack:
    pop rsi                   ; return address
    mov rdx, rsp              ; old rsp for saving
    mov rsp, rdi              ; swap stack with one passed to func
    push rdx                  ; store old stack pointer on newly switched stack
    sub rsp, 8h               ; stack alignment
    jmp rsi                   ; return


narch_coroRestoreStack:
	pop rsi                   ; return address
	add rsp, 8h               ; stack alignment
	pop rsp                   ; resture old stack pointer
	jmp rsi                   ; return





 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-02-08 17:47:33 +0000