test: verify independent guests and recovery on private displays

2026-10-13 04:35:14 +03:00
parent 623ecdef85
commit 7353c4ec92
11 changed files with 608 additions and 47 deletions
@@ -0,0 +1,25 @@
+.code16
+.global _start
+_start:
+ cli
+ xor %ax,%ax
+ mov %ax,%ds
+ mov %ax,%ss
+ mov $0x7c00,%sp
+ movl $0x48594452,0x508
+ movl $0,0x500
+ movw $0,0x504
+loop:
+ incl 0x500
+ in $0x64,%al
+ test $1,%al
+ jz loop
+ in $0x60,%al
+ mov 0x504,%bx
+ mov %al,0x600(%bx)
+ inc %bx
+ and $255,%bx
+ mov %bx,0x504
+ jmp loop
+.org 510
+.word 0xaa55