56 lines
1.1 KiB
PHP
56 lines
1.1 KiB
PHP
;; File: bootinfo.inc
|
|
;; StupidOS Boot protocol constants and structs
|
|
|
|
;; Constant: BOOT_HEADER_MAGIC
|
|
BOOT_HEADER_MAGIC = 0x44505453
|
|
;; Constant: BOOT_BOOTLOADER_MAGIC
|
|
BOOT_BOOTLOADER_MAGIC = 0x53545044
|
|
|
|
;; Struct: BootHeader
|
|
;;
|
|
;; .magic - Must be <BOOT_HEADER_MAGIC>
|
|
;; .load_end_addr - TODO
|
|
;; .bss_end_addr - TODO
|
|
;; .entry_addr - Kernel entry point
|
|
struc BootHeader {
|
|
.magic dd ?
|
|
.load_end_addr dd ?
|
|
.bss_end_addr dd ?
|
|
.entry_addr dd ?
|
|
}
|
|
|
|
;; Struct: BootMMapEntry
|
|
;; Memory map entry
|
|
;;
|
|
;; .base - TODO
|
|
;; .length - TODO
|
|
struc BootMMapEntry {
|
|
.base dq ?
|
|
.length dq ?
|
|
}
|
|
|
|
;; Struct: BootInfoRange
|
|
struc BootInfoRange {
|
|
.base dd ?
|
|
.length dd ?
|
|
}
|
|
|
|
;; Struct: BootInfo
|
|
;; StupidOS boot protocol structure
|
|
;;
|
|
;; .mmap - Free memory map
|
|
;; .kernel_start - Kernel start address
|
|
;; .kernel_size - Kernel size in bytes
|
|
;; .high_mem - Free memory under 1MB
|
|
;; .low_mem - Free memory upper 1MB
|
|
struc BootInfo {
|
|
.mmap dd 4*2*20 dup(0)
|
|
.kernel_start dd ?
|
|
.kernel_size dd ?
|
|
.high_mem dd ?
|
|
.low_mem dd ?
|
|
}
|
|
virtual at 0
|
|
BootInfo BootInfo
|
|
sizeof.BootInfo:
|
|
end virtual
|