Switch push/pop_all macros from push/pop to mov

src/drivers/nulldrv/main.s

@@ -63,6 +63,6 @@ _start:
 	syscall ; int 0xee
 	jmp .preloop
 
-.doexit
+.doexit:
 	mov rax, 9      ; EXIT syscall
 	syscall

src/kernel/interrupts.s

@@ -3,7 +3,7 @@
 extern isr_handler
 global isr_handler_prelude
 isr_handler_prelude:
-	push_all_and_segments
+	push_all
 	check_swap_gs
 
 	mov rdi, rsp
@@ -15,7 +15,7 @@ isr_handler_prelude:
 extern irq_handler
 global irq_handler_prelude
 irq_handler_prelude:
-	push_all_and_segments
+	push_all
 	check_swap_gs
 
 	mov rdi, rsp
@@ -27,7 +27,7 @@ irq_handler_prelude:
 global isr_handler_return
 isr_handler_return:
 	check_swap_gs
-	pop_all_and_segments
+	pop_all
 
 	add rsp, 16		; because the ISRs added err/num
 	iretq

src/kernel/loader.s

@@ -27,7 +27,7 @@ ramdisk_process_loader:
 	mov fs, ax
 	mov gs, ax
 
-	pop_all_and_segments
+	pop_all
 	add rsp, 16		; because the ISRs add err/num
 	iretq
 

src/kernel/push_all.inc

@@ -1,47 +1,43 @@
-%macro push_all_and_segments 0
+%macro push_all 0
-	; ss        ; rsp + a8
+	sub rsp, 0x78
-	; rsp       ; rsp + a0
-	; rflags    ; rsp + 98
-	; cs        ; rsp + 90
-	; rip       ; rsp + 88
-	; error     ; rsp + 80
-	; vector    ; rsp + 78
 
-	push rax    ; rsp + 70
+	mov [rsp + 0x70], rax
-	push rcx    ; rsp + 68
+	mov [rsp + 0x68], rcx
-	push rdx    ; rsp + 60
+	mov [rsp + 0x60], rdx
-	push rbx    ; rsp + 58
+	mov [rsp + 0x58], rbx
-	push rbp    ; rsp + 50
+	mov [rsp + 0x50], rbp
-	push rsi    ; rsp + 48
+	mov [rsp + 0x48], rsi
-	push rdi    ; rsp + 40
+	mov [rsp + 0x40], rdi
 
-	push r8     ; rsp + 38
+	mov [rsp + 0x38], r8
-	push r9     ; rsp + 30
+	mov [rsp + 0x30], r9
-	push r10    ; rsp + 28
+	mov [rsp + 0x28], r10
-	push r11    ; rsp + 20
+	mov [rsp + 0x20], r11
-	push r12    ; rsp + 18
+	mov [rsp + 0x18], r12
-	push r13    ; rsp + 10
+	mov [rsp + 0x10], r13
-	push r14    ; rsp + 08
+	mov [rsp + 0x08], r14
-	push r15    ; rsp + 00
+	mov [rsp + 0x00], r15
 %endmacro
 
-%macro pop_all_and_segments 0
+%macro pop_all 0
-	pop r15
+	mov rax, [rsp + 0x70]
-	pop r14
+	mov rcx, [rsp + 0x68]
-	pop r13
+	mov rdx, [rsp + 0x60]
-	pop r12
+	mov rbx, [rsp + 0x58]
-	pop r11
+	mov rbp, [rsp + 0x50]
-	pop r10
+	mov rsi, [rsp + 0x48]
-	pop r9
+	mov rdi, [rsp + 0x40]
-	pop r8
 
-	pop rdi
+	mov r8, [rsp + 0x38]
-	pop rsi
+	mov r9, [rsp + 0x30]
-	pop rbp
+	mov r10, [rsp + 0x28]
-	pop rbx
+	mov r11, [rsp + 0x20]
-	pop rdx
+	mov r12, [rsp + 0x18]
-	pop rcx
+	mov r13, [rsp + 0x10]
-	pop rax
+	mov r14, [rsp + 0x08]
+	mov r15, [rsp + 0x00]
+
+	add rsp, 0x78
 %endmacro
 
 %macro check_swap_gs 0

src/kernel/syscall.s

@@ -18,7 +18,7 @@ syscall_handler_prelude:
 	push rcx	; user rip
 	push 0		; bogus interrupt
 	push 0		; bogus errorcode
-	push_all_and_segments
+	push_all
 
 	inc qword [rel __counter_syscall_enter]
 
@@ -39,7 +39,7 @@ syscall_handler_prelude:
 
 	swapgs
 
-	pop_all_and_segments
+	pop_all
 	add rsp, 16	; ignore bogus interrupt / error
 	pop rcx		; user rip
 	add rsp, 32 ; ignore cs, flags, rsp, ss