Added basic IPC syscalls

2022-08-17 02:47:41 -05:00
parent bfb56fcbb3
commit 0ae4f7995d
5 changed files with 217 additions and 68 deletions
--- a/src/x86/preempt.S
+++ b/src/x86/preempt.S
@@ -4,6 +4,13 @@
 .type isr_syscall, @function
 isr_syscall:
    cli
+    mov %esp, %ebp
+    mov 8(%ebp), %esi
+    push %esi
+    mov 12(%ebp), %esi
+    push %esi
+    mov (%ebp), %esi
+    push %esi
    push %edx
    push %ecx
    push %ebx
@@ -14,7 +21,7 @@ isr_syscall:
    mov %ax, %fs
    mov %ax, %gs
    call do_syscall
-    add $0x10, %esp
+    mov %ebp, %esp
    mov $0x23, %cx
    mov %cx, %ds
    mov %cx, %es