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Kernel/arm7 - Fiddling on process switching
[tpg/acess2.git]
/
Kernel
/
arch
/
x86_64
/
desctab.asm
diff --git
a/Kernel/arch/x86_64/desctab.asm
b/Kernel/arch/x86_64/desctab.asm
index
50fc126
..
739b219
100644
(file)
--- a/
Kernel/arch/x86_64/desctab.asm
+++ b/
Kernel/arch/x86_64/desctab.asm
@@
-191,6
+191,8
@@
IRQ_AddHandler:
[section .rodata]
csIRQ_Assigned:
db "IRQ %p := %p (IRQ %i)",0
[section .rodata]
csIRQ_Assigned:
db "IRQ %p := %p (IRQ %i)",0
+csIRQ_Fired:
+ db "IRQ %i fired",0
[section .text]
%macro ISR_NOERRNO 1
[section .text]
%macro ISR_NOERRNO 1
@@
-277,10
+279,14
@@
IrqCommon:
PUSH_GPR
push gs
push fs
PUSH_GPR
push gs
push fs
+
+; mov rdi, csIRQ_Fired
+; mov rsi, [rsp+(16+2)*8]
+; call Log
- mov
r
bx, [rsp+(16+2)*8] ; Get interrupt number (16 GPRS + 2 SRs)
+ mov
e
bx, [rsp+(16+2)*8] ; Get interrupt number (16 GPRS + 2 SRs)
; xchg bx, bx ; Bochs Magic break (NOTE: will clear the high-bits of RBX)
; xchg bx, bx ; Bochs Magic break (NOTE: will clear the high-bits of RBX)
- shl
rbx, 2 ; *8
*4
+ shl
ebx, 2 ;
*4
mov rax, gaIRQ_Handlers
lea rbx, [rax+rbx*8]
mov rax, gaIRQ_Handlers
lea rbx, [rax+rbx*8]
@@
-303,20
+309,17
@@
IrqCommon:
; ACK
mov al, 0x20
; ACK
mov al, 0x20
- mov rdi, [rsp+
16*8]
; Get IRQ number
+ mov rdi, [rsp+
(16+2)*8]
; Get IRQ number
cmp rdi, 8
jb .skipAckSecondary
cmp rdi, 8
jb .skipAckSecondary
- mov dx, 0x00A0
- out dx, al
+ out 0xA0, al
.skipAckSecondary:
.skipAckSecondary:
- mov dx, 0x0020
- out dx, al
+ out 0x20, al
pop fs
pop gs
POP_GPR
add rsp, 8*2
pop fs
pop gs
POP_GPR
add rsp, 8*2
- ;xchg bx, bx
iretq
[extern Proc_Scheduler]
iretq
[extern Proc_Scheduler]
@@
-371,6
+374,7
@@
SchedulerIRQ:
pop gs
POP_GPR
add rsp, 2*8 ; Dummy error code and IRQ num
pop gs
POP_GPR
add rsp, 2*8 ; Dummy error code and IRQ num
+; xchg bx, bx
iretq
[extern ci_offsetof_tThread_KernelStack]
iretq
[extern ci_offsetof_tThread_KernelStack]
@@
-413,6
+417,10
@@
SyscallStub:
pop r11
pop rcx
pop rsp ; Change back to user stack
pop r11
pop rcx
pop rsp ; Change back to user stack
+ ; TODO: Determine if user is 64 or 32 bit
+
+; xchg bx, bx
+ db 0x48 ; REX, nasm doesn't have a sysretq opcode
sysret
[section .data]
sysret
[section .data]
UCC
git Repository :: git.ucc.asn.au