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wip: multitasking: change eip but not working

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Starnakin 2025-01-21 10:41:27 +01:00
parent d889a251ef
commit 57ce3c792d
3 changed files with 9 additions and 5 deletions
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2
src/interrupt/irq.s
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@ -40,7 +40,7 @@ irq_common_stub:
irq0: irq0:
push eax push eax
mov eax, [esp + 4] mov eax, [esp + 4]
mov [eip_backup], eax mov [esp_backup], esp
pop eax pop eax
push 0 push 0
push 32 push 32

8
src/multitasking/switch_to_task.s
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@ -10,8 +10,9 @@ switch_to_task:
push esi push esi
// save the current stack pointer to the old stack // save the current stack pointer to the old stack
mov [current_task], esp mov [current_task+0], esp
mov edi, [eip_backup]
mov edi, [esp_backup] // get eip
mov [current_task+16], edi // save instruction before Interrupt mov [current_task+16], edi // save instruction before Interrupt
// stack pointer + the 4 regs pushed // stack pointer + the 4 regs pushed
@ -31,7 +32,8 @@ switch_to_task:
// mov cr3, ebx // mov cr3, ebx
// TODO replace the eip store in stack by the [current_task+16](current_task->eip) // TODO replace the eip store in stack by the [current_task+16](current_task->eip)
mov edi, [current_task+16]
mov [esp_backup], edi
.END: .END:
pop esi pop esi
pop edi pop edi

4
src/multitasking/task.c
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@ -5,7 +5,9 @@
#include "kprintf.h" #include "kprintf.h"
#include "memory.h" #include "memory.h"
uint32_t eip_backup; #include <stdint.h>
uint32_t esp_backup;
static struct task *create_task(uint8_t owner_id) static struct task *create_task(uint8_t owner_id)
{ {