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[zion] POC for defining syscalls using macros

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Drew Galbraith 2023-06-20 13:43:12 -07:00
parent 4fef54084f
commit 5fc7296b20
5 changed files with 36 additions and 32 deletions
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5
zion/usr/crt0.s
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@ -8,6 +8,7 @@ _start:
_exit:
// EXIT syscall.
mov $1, %rdi
// Return code as a param.
mov %rax, %rsi
// Return code as a "struct" on the stack.
push %rax
mov %rsp, %rsi
syscall