cgascr: init cursor in rust code

1 files changed, 1 insertions, 33 deletions

diff --git a/boot/startup-x86_64.s b/boot/startup-x86_64.s
index dfc6262..4c4cc21 100644
--- a/boot/startup-x86_64.s
+++ b/boot/startup-x86_64.s
@@ -9,7 +9,7 @@
 ;*----------------------------------------------------------------------------*
 ;* The 'startup' function is the entry point for the whole system. Switching  *
 ;* to 32-bit Protected Mode has already been done (by a boot loader that runs *
-;* before). Here we prepare everything to be able to start running C++ code   *
+;* before). Here we prepare everything to be able to start running rust code  *
 ;* in 64-bit Long Mode as quickly as possible.                                *
 ;******************************************************************************
 
@@ -20,9 +20,6 @@
 ; stack for the main function (renamed to _entry())
 STACKSIZE: equ 65536
 
-; video memory base address
-CGA: equ 0xB8000
-
 ; 512 GB maximum RAM size for page table
 ; DON'T MODIFY THIS UNLESS YOU UPDATE THE setup_paging accordingly
 MAX_MEM: equ 512
@@ -191,7 +188,6 @@ clear_bss:
 	; initialize IDT and PICs
 	call   setup_idt
 	call   reprogram_pics
-	call   setup_cursor
 
 	fninit         ; activate FPU
 
@@ -298,34 +294,6 @@ setup_idt:
 	ret
 
 ;
-; make cursor blink (GRUB disables this)
-;
-
-setup_cursor:
-	mov al, 0x0a
-	mov dx, 0x3d4
-	out dx, al
-	call delay
-	mov dx, 0x3d5
-	in al, dx
-	call delay
-	and al, 0xc0
-	or al, 14
-	out dx, al
-	call delay
-	mov al, 0x0b
-	mov dx, 0x3d4
-	out dx, al
-	call delay
-	mov dx, 0x3d5
-	in al, dx
-	call delay
-	and al, 0xe0
-	or al, 15
-	out dx, al
-	ret
-
-;
 ; Reprogram the PICs (programmable interrupt controllers) to have all 15
 ; hardware interrupts in sequence in the IDT.
 ;