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Work on interrupts (non-working state)

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This commit is contained in:
Baptiste Wicht 2013-11-03 18:36:18 +01:00
parent 87efbea27c
commit 1e181830be
3 changed files with 42 additions and 20 deletions
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2
Makefile
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@ -29,7 +29,7 @@ bochs: thor.flp
debug: thor.flp
echo "c" > commands
bochs -qf bochsrc.txt -rc commands
bochs -qf debug_bochsrc.txt -rc commands
rm commands
force_look:

6
kernel/src/shell.cpp
View File

@ -266,9 +266,9 @@ void memory_command(const char*){
k_print_line("Read failed");
} else {
for(int i = 0; i < 80; i += 8){
k_printf("%h %h %h %h %h %h %h %h\n",
buffer[i+0], buffer[i+1], buffer[i+2], buffer[i+3],
buffer[i+4], buffer[i+5], buffer[i+6], buffer[i+7]);
k_printf("%.4h %.4h %.4h %.4h %.4h %.4h %.4h %.4h\n",
(std::size_t) buffer[i+0], (std::size_t) buffer[i+1], (std::size_t) buffer[i+2], (std::size_t) buffer[i+3],
(std::size_t) buffer[i+4], (std::size_t) buffer[i+5], (std::size_t) buffer[i+6], (std::size_t) buffer[i+7]);
}
k_free(reinterpret_cast<std::size_t*>(buffer));

54
micro_kernel/interrupts.asm
View File

@ -46,28 +46,22 @@ _isr%1:
; Disable interruptions to avoid being interrupted
cli
mov r10, [rsp]
mov r11, [rsp+8]
mov r10, [rsp] ; error code
mov r11, [rsp+8] ; saved rip
lea rdi, [12 * 8 * 0x14 + 30 * 2 + TRAM]
mov dl, STYLE(RED_F, WHITE_B)
mov rbx, isr%1_msg
call print_string
mov rax, %1
cmp rax, 14
jne .end
.page_fault_exception:
; print cr2
; print rip
lea rdi, [13 * 8 * 0x14 + 30 * 2 + TRAM]
mov rbx, cr2_str
mov rbx, rip_str
call print_string
lea rdi, [13 * 8 * 0x14 + 35 * 2 + TRAM]
mov r8, cr2
lea rdi, [13* 8 * 0x14 + 35 * 2 + TRAM]
mov r8, r11
call print_int
; print rsp
@ -80,14 +74,22 @@ _isr%1:
mov r8, rsp
call print_int
; print rip
; More informations for some specific exceptions
mov rax, %1
cmp rax, 14
jne .end
.page_fault_exception:
; print cr2
lea rdi, [15 * 8 * 0x14 + 30 * 2 + TRAM]
mov rbx, rip_str
mov rbx, cr2_str
call print_string
lea rdi, [15* 8 * 0x14 + 35 * 2 + TRAM]
mov r8, r11
lea rdi, [15 * 8 * 0x14 + 35 * 2 + TRAM]
mov r8, cr2
call print_int
; print error code
@ -112,15 +114,33 @@ _irq%1:
; Disable interruptions to avoid being interrupted
cli
push rax
mov rax, [irq_handlers + 8 *%1]
; If there are no handler, just send EOI
test rax, rax
je .eoi
push rbx
push rcx
push rdx
push rsi
push rdi
push r8
push r9
; Call the handler
call rax
push r9
push r8
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
.eoi:
mov rax, %1 ; IRQ number
@ -138,6 +158,8 @@ _irq%1:
mov al, 0x20
out 0x20, al
pop rax
iretq
%endmacro