Merge pull request #5317 from rokups/feature/coroutines

Coroutine improvements

1 files changed, 0 insertions, 89 deletions

diff --git a/lib/arch/unix_amd64.asm b/lib/arch/unix_amd64.asm
deleted file mode 100644
index 3005c150c..000000000
--- a/lib/arch/unix_amd64.asm
+++ /dev/null
@@ -1,89 +0,0 @@
-;
-;
-;            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