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| author | Amlal El Mahrouss <amlal@nekernel.org> | 2025-04-16 18:15:13 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-04-16 18:15:13 +0200 |
| commit | 0033ef41f33ce3d39b4e7ed7e1353cec916bdd5d (patch) | |
| tree | cf298a3b522fed5b829c4b250932ab13ef407838 /dev/user/src/SystemCalls+IO.asm | |
| parent | d3cf45311cf3f6de0bc25bb0ddb5c14a29a72cd6 (diff) | |
| parent | 58b3d776ab5435de352217b2a3a525aeb9316e99 (diff) | |
Merge pull request #19 from amlel-el-mahrouss/dev
urgent patches.
Diffstat (limited to 'dev/user/src/SystemCalls+IO.asm')
| -rw-r--r-- | dev/user/src/SystemCalls+IO.asm | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/dev/user/src/SystemCalls+IO.asm b/dev/user/src/SystemCalls+IO.asm new file mode 100644 index 00000000..58ea79e7 --- /dev/null +++ b/dev/user/src/SystemCalls+IO.asm @@ -0,0 +1,52 @@ +;; /* +;; * ======================================================== +;; * +;; * libsci +;; * Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved. +;; * +;; * ======================================================== +;; */ + +[bits 64] + +;; @brief Syscall dispatch, also taking note the Microsoft's calling convention to translate it to NeKernel's ABI. + +section .text + +global sci_syscall_arg_1 +global sci_syscall_arg_2 +global sci_syscall_arg_3 +global sci_syscall_arg_4 + +sci_syscall_arg_1: + mov r8, rcx + syscall + ret + +sci_syscall_arg_2: + mov r8, rcx + mov r9, rdx + syscall + ret + +sci_syscall_arg_3: + mov rbx, r8 + + mov r8, rcx + mov r9, rdx + mov r10, rbx + + syscall + ret + +sci_syscall_arg_4: + mov rbx, r8 + mov rax, r9 + + mov r8, rcx + mov r9, rdx + mov r10, rbx + mov r11, rax + + syscall + ret |