moving unused files folder

1 files changed, 93 insertions, 0 deletions

diff --git a/xxx/boot2/vesa_setup_16.asm b/xxx/boot2/vesa_setup_16.asm
new file mode 100644
index 0000000..5bee57c
--- /dev/null
+++ b/xxx/boot2/vesa_setup_16.asm
@@ -0,0 +1,93 @@
+VESA_CHECK1:
+    db "VESA: get modes!",0
+VESA_CHECK2:
+    db "VESA: get info on target mode!",0
+VESA_CHECK3:
+    db "VESA: switching to target mode!",0
+VESA_PAUSE:
+    db "[Press any key to switch to VESA 0x114]",0
+
+VesaSetup:
+    
+    pusha
+
+    ;VESA: get all available vesa modes!
+    mov ax,0	; set target address in es:di (0:offset)
+    mov es,ax
+    mov di,VESA_MODES
+    mov ax,0x4f00   ;vesa function: Get Controller Info
+    int 0x10	; call the interrupt to get the data from the bios!
+    vesa_err:
+    mov bx, VESA_CHECK1
+    call print_string
+    call print_nextline
+    cmp ax,0x004f
+    je vesa_ok
+    jmp vesa_err
+    vesa_ok:
+    ;
+
+
+    ;VESA: get vesa info on mode of interest
+    mov ax,0	; set target address in es:di (0:offset)
+    mov es,ax
+    mov di,VESA_MODE_INFO
+    mov ax,0x4f01   ;vesa function: Get Mode Info
+    mov cx,VESA_MODE_SELECT   
+    int 0x10	; call the interrupt to get the data from the bios!
+    vesa_err2:
+    mov bx, VESA_CHECK2
+    call print_string
+    call print_nextline
+    cmp ax,0x004f
+    je vesa_ok2
+    jmp vesa_err2
+    vesa_ok2:
+
+    ;show press any key
+;    call print_nextline
+;    mov bx, VESA_PAUSE
+;    call print_string
+;    call print_nextline
+
+    ;preempt keyboard buffer
+    
+    next_key:
+
+    mov ah,0x1 ;get scnacode from kb (non-blocking)
+    int 0x16
+    jnz get_key ; nothing to preempt
+
+    jmp wait_key
+
+    get_key:
+    mov ah,0	;get  key from buffer
+    int 0x16
+
+;    mov al,ah
+;    call print_hex_byte
+;    call print_nextline
+
+    jmp next_key
+
+    ;;;;;;;;;;;;;;;;;
+    wait_key:
+;    mov ah,0	; block waiting for keyboard scancode
+;    int 0x16
+
+
+    ;VESA: finally switch to the mode of choice!
+    mov ax,0x4f02   ;vesa function: Set Mode
+    mov bx,VESA_MODE_SELECT 
+
+    int 0x10
+    cmp ax,0x004f
+    je vesa_ok3
+    vesa_err3:
+    mov bx, VESA_CHECK3
+    call print_string
+    call print_nextline
+    jmp vesa_err3
+    vesa_ok3:
+    popa
+    ret