From 19eea56a7e5f5d0eb0a51a88c214eca57bf23547 Mon Sep 17 00:00:00 2001
From: Starnakin <camille@chauvet.pro>
Date: Thu, 23 Jan 2025 15:25:49 +0100
Subject: [PATCH] fix: switch to task: dereference variable rightly

---
 src/multitasking/switch_to_task.s | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/src/multitasking/switch_to_task.s b/src/multitasking/switch_to_task.s
index d542361..555dd14 100644
--- a/src/multitasking/switch_to_task.s
+++ b/src/multitasking/switch_to_task.s
@@ -9,11 +9,14 @@ switch_to_task:
 	push edi
 	push esi
 
-	// save the current stack pointer to the old stack
-	mov [current_task+0], esp
+	mov eax, [current_task]
 
-	mov edi, [esp_backup] // get eip
-	mov [current_task+16], edi	// save instruction before Interrupt
+	// save the current stack pointer to the old stack
+	mov [eax+0], esp
+
+	// save the old eip pointer
+	mov ebx, [[esp_backup]]
+	mov [eax+16], ebx
 
 	// stack pointer + the 4 regs pushed
 	// and + 1 to get the argument (next task)
@@ -22,21 +25,22 @@ switch_to_task:
 
 	mov esp, [current_task] // esp
 	mov eax, [current_task+4] // esp0
-	mov ebx, [current_task+8] // cr3
-	mov edi, [current_task+12] // page_directory
-	mov [page_directory], edi
-	mov [TSS+4], eax // tss.esp0
-	mov ecx, cr3
+//	mov ebx, [current_task+8] // cr3
+//	mov edi, [current_task+12] // page_directory
+//	mov [page_directory], edi
+//	mov [TSS+4], eax // tss.esp0
+//	mov ecx, cr3
 
 	// if cr3 hasn't change, do nothing
-	cmp ecx, ebx
-	je .END 
+//	cmp ecx, ebx
+//	je .END 
 //	mov cr3, ebx
 
 
 .END:
-	mov edi, [current_task+16]
-	mov [esp_backup], edi
+	mov eax, [current_task+16]
+	mov ebx, [esp_backup]
+	mov [ebx], eax
 	
 	pop esi
 	pop edi