Skip to content

Commit c39f679

Browse files
muestra bpp en tabla comentario
1 parent 4ca35d4 commit c39f679

1 file changed

Lines changed: 7 additions & 5 deletions

File tree

asm/uefi.asm

Lines changed: 7 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -780,7 +780,7 @@ exit_uefi_services:
780780
;; se deberia revisar que no sea mayor. Posible payload (previo copia):
781781
;; +---------------------------------------------+--------------------+
782782
;; | tsl.sys | packedKernel.bin |
783-
;; | start16 | code | data | 00..0 | code | data | kernel | mods user |
783+
;; | start16 | code | data | 0_pad | code | data | kernel | mods user |
784784
;; | | low | low | 00..0 | hi | hi | .bin | land.bin |
785785
;; +---------------------------------------------+--------------------+
786786
;; |< 0x200 >|0x200 |0x100 | |0x2000|0x1000|<----- 226KiB ----->|
@@ -798,10 +798,11 @@ exit_uefi_services:
798798
;; as the 1st 512 bytes of the payload.
799799

800800
mov rdi, TSL_BASE_ADDRESS_LOW
801-
mov rcx, TSL_LO_SIZE ;; Bytes a partir de TSL_BASE_ADDRESS_LOW.
801+
mov rcx, TSL_LO_SIZE ;; Bytes a partir de TSL_BASE_ADDRESS_LOW (code_lo +
802+
;; data_lo + zero_padding).
802803
rep movsb
803804

804-
;; Hi tsl. Los restantes 239K. Se encuentran alineados a 1K.
805+
;; Hi tsl. Los restantes 238K. Se encuentran alineados a 1K.
805806
mov rsi, PAYLOAD + START16_SIZE + TSL_LO_SIZE
806807
mov rdi, TSL_BASE_ADDRESS
807808
mov rcx, (238 * 1024) ;; 238KiB.
@@ -813,6 +814,7 @@ exit_uefi_services:
813814
;; dword [0x00005F10] = Screen X
814815
;; dword [0x00005F12] = Screen Y
815816
;; dword [0x00005F14] = PixelsPerScanLine
817+
;; dword [0x00005F16] = BPP
816818

817819
mov rdi, 0x00005F00
818820
mov rax, [FB]
@@ -825,8 +827,8 @@ exit_uefi_services:
825827
stosw ;; 5F00 + 8 * 2 + 2 * 1 = 16-bit Screen Y.
826828
mov rax, [PPSL]
827829
stosw ;; 5F00 + 8 * 2 + 2 * 2 = 16-bit PixelsPerScanLine.
828-
mov rax, 32 ;; BPP hardcodeado, supuestamente uefi siempre 32? Grub
829-
;; muestra que hay modos con 24 seleccionables.
830+
mov rax, 32 ;; TO-DO: bpp hardcodeado, supuestamente uefi siempre 32
831+
;; ? Grub muestra que hay modos con 24 seleccionables.
830832
stosw ;; 16-bit BitsPerPixel
831833

832834
mov rax, [memmap] ;; Mem map base address.

0 commit comments

Comments
 (0)