Major libk restructuring, also rewrote drivers/serial.h

2024-10-27 10:23:56 +01:00
parent 4079049242
commit e8a55d72a5
62 changed files with 334 additions and 380 deletions
@@ -0,0 +1,116 @@
+; ISR Assembly
+[bits 32]
+
+isrCommon:
+    ;; Push registers to the intFrame_t struct
+
+    push eax
+    push gs
+    push fs
+    push es
+    push ds
+    push ebp
+    push edi
+    push esi
+    push edx
+    push ecx
+    push ebx
+    push esp
+    
+    [extern handleInterrupt]
+    call handleInterrupt
+isrReturn:
+    add esp, 4  ; Keep ESP
+    pop ebx
+    pop ecx
+    pop edx
+    pop esi
+    pop edi
+    pop ebp
+    pop ds
+    pop es
+    pop fs
+    pop gs
+    add esp, 4  ; Keep EAX
+    add esp, 8  ; Pop interupt number and error code
+
+    iretd   ; Pop CS, EIP & EFLAGS (Also SS & ESP if it's from userspace)
+
+%macro ISR_WITH_ERRNO 1
+isr%1:
+    push dword %1
+    jmp isrCommon
+%endmacro
+    
+%macro ISR_WITHOUT_ERRNO 1
+isr%1:
+    push dword 0    ; Instead of error code
+    push dword %1
+    jmp isrCommon
+%endmacro
+
+;; Exceptions
+ISR_WITHOUT_ERRNO 0
+ISR_WITHOUT_ERRNO 1
+ISR_WITHOUT_ERRNO 2
+ISR_WITHOUT_ERRNO 3
+ISR_WITHOUT_ERRNO 4
+ISR_WITHOUT_ERRNO 5
+ISR_WITHOUT_ERRNO 6
+ISR_WITHOUT_ERRNO 7
+ISR_WITH_ERRNO    8
+ISR_WITHOUT_ERRNO 9
+ISR_WITH_ERRNO    10
+ISR_WITH_ERRNO    11
+ISR_WITH_ERRNO    12
+ISR_WITH_ERRNO    13
+ISR_WITH_ERRNO    14
+ISR_WITHOUT_ERRNO 15
+ISR_WITHOUT_ERRNO 16
+ISR_WITHOUT_ERRNO 17
+ISR_WITHOUT_ERRNO 18
+ISR_WITHOUT_ERRNO 19
+ISR_WITHOUT_ERRNO 20
+ISR_WITHOUT_ERRNO 21
+ISR_WITHOUT_ERRNO 22
+ISR_WITHOUT_ERRNO 23
+ISR_WITHOUT_ERRNO 24
+ISR_WITHOUT_ERRNO 25
+ISR_WITHOUT_ERRNO 26
+ISR_WITHOUT_ERRNO 27
+ISR_WITHOUT_ERRNO 28
+ISR_WITHOUT_ERRNO 29
+ISR_WITHOUT_ERRNO 30
+ISR_WITHOUT_ERRNO 31
+
+;; IRQs 0-15 (mapped 32-47)
+ISR_WITHOUT_ERRNO 32
+ISR_WITHOUT_ERRNO 33
+ISR_WITHOUT_ERRNO 34
+ISR_WITHOUT_ERRNO 35
+ISR_WITHOUT_ERRNO 36
+ISR_WITHOUT_ERRNO 37
+ISR_WITHOUT_ERRNO 38
+ISR_WITHOUT_ERRNO 39
+ISR_WITHOUT_ERRNO 40
+ISR_WITHOUT_ERRNO 41
+ISR_WITHOUT_ERRNO 42
+ISR_WITHOUT_ERRNO 43
+ISR_WITHOUT_ERRNO 44
+ISR_WITHOUT_ERRNO 45
+ISR_WITHOUT_ERRNO 46
+ISR_WITHOUT_ERRNO 47
+
+;; Syscall ISR128
+[global isr128]
+ISR_WITHOUT_ERRNO 128
+
+;; Create table of ISRs
+[global asm_isrRedirectTable]
+asm_isrRedirectTable:
+%assign i 0
+%rep 48
+    dd isr%+i
+%assign i i+1
+%endrep
+