Unified Extensible Firmware Interface (UEFI) Example

[jj2007]

It works, Timo

Code Select Expand

1750 ms  Uasm64msvcrt, ML 6.15 & 10.0
1500 ms  Uasm64
1400 ms  Uasm64libc
1150 ms  AsmC

[johnsa]

I get a general failure using this libc version on some of my test pieces

[TimoVJL]

 

[TimoVJL]

 

[aw27]

I turned the internal macros into external MACROS (see below) to debug better, but the error is not related to the macros, as I thought initially. I.e, the internal macros are good.

The error will disappear if we uncomment the line 'pConsole         PCONOUT 0' (see below), i.e the origin of the error 'Invalid use of pointer operator' is tracked and makes sense:

Code Select Expand


.x64p
OPTION WIN64:15
OPTION STACKBASE:Rsp
OPTION LITERALS:ON
OPTION ARCH:AVX
OPTION CASEMAP:NONE

RAWINTERFACE MACRO CName:REQ
curClass TEXTEQU <CName>
% __&CName&_size = 0
@CatStr(CName, < RAWSTRUCT >)
ptrDefS TEXTEQU <psr>
ptrDefS CATSTR ptrDefS, <&curClass&>, < TYPEDEF PTR >, <&curClass&>
% ptrDefS
;% echo _ptrDefS= ptrDefS
ENDM

ENDRAWINTERFACE MACRO
curClass ENDS
.data
% _stat&curClass& curClass <>
ENDM

STDFUNC MACRO method:REQ, retType:REQ, protoDef:VARARG
LOCAL sz1, sz2
pDef CATSTR <TYPEDEF PROTO >,<(&retType&) >
;% echo _pedef= pDef
IFNB <protoDef>
pDef CATSTR pDef, <, >, <&protoDef>
ENDIF
sz2 CATSTR <_>, curClass, <_&method>, <Pto>
% &sz2 &pDef
% sz1 typedef PTR &sz2
% method sz1 0
% __&curClass&_size = __&curClass&_size + 8
fnex TEXTEQU <_>
fnex CATSTR fnex, curClass, <_>, <&method&>, < PROTO >, <(&retType&) >

IFNB <&protoDef>
fnex CATSTR fnex, <, >, <&protoDef&>
ELSE
ENDIF
fnex
; % echo _fnex= fnex
ENDM

CHAR16     TYPEDEF WORD
P_CHAR16   TYPEDEF PTR CHAR16

RAWINTERFACE ConOut
STDFUNC OutputString, <voidarg>, pThis:PTR _ConOut, pStr:P_CHAR16
ENDRAWINTERFACE
PCONOUT TYPEDEF PTR ConOut

.data

;pConsole         PCONOUT 0 ; If we uncomment NO error
hexSTR dw 20 DUP (0)


.code

main PROC FRAME pConsoleOut:PCONOUT
pConsole->OutputString(pConsole, &hexSTR)
ret
main ENDP

END


[jj2007]

Works fine but AsmC is a tick faster (1400 vs 1050 ms for 21k lines test case)

[TimoVJL]

Why: no site interest, so i save site space
Experts should fix obvious things, so why i bother

[johnsa]

I've applied Timo's fixes in 2.50 branch now as well and can confirm it solves the bug AW showed last. A proper error is now reporting when pConsole is not defined, and assembly completes as expected when it is defined.

[TimoVJL]

gcc and clang compiles it OK

[HSE]

Hi johnsa!

Efi.inc line 758 must be:

Code Select Expand

RAWINTERFACE EFI_BOOT_SERVICES

Regards, HSE.

[Gunther]

Efi.inc line 758 must be:

Code Select Expand

RAWINTERFACE EFI_BOOT_SERVICES

Good find! 

[HSE]

Hi Gunther!

Good find! 

A couple of weeks ago I maked a FreeDos USB because I found a Chourdakis work that allow to make FreeDos multicore, and can be interesting to test if some big simulations can run faster with more machine control. Happen that FreeDos rely on BIOS, and new machines with Intel chips only have UEFI 

Now I'm playing with very simple things. But perhaps is not so dificult to make a like-microOS program, just because a UEFI machine boot from an almost standard windows PE64 file using the X64 calling convention we know. 

Regards, HSE.

[HSE]

Hi! again 

There is some problem close to Efi.inc line 324:

Code Select Expand

; *******************************************************
; EFI_FILE_PROTOCOL
; *******************************************************
RAWINTERFACE EFI_FILE_HANDLE


Not sure what the problem is, anyway that must be:

Code Select Expand

; *******************************************************
; EFI_FILE_PROTOCOL
; *******************************************************
RAWINTERFACE EFI_FILE_PROTOCOL


[Gunther]

HSE,

Hi! again 

There is some problem close to Efi.inc line 324:

Code Select Expand

; *******************************************************
; EFI_FILE_PROTOCOL
; *******************************************************
RAWINTERFACE EFI_FILE_HANDLE


Not sure what the problem is, anyway that must be:

Code Select Expand

; *******************************************************
; EFI_FILE_PROTOCOL
; *******************************************************
RAWINTERFACE EFI_FILE_PROTOCOL


I always notice: You're very aware. Thanks for that.

[HSE]

Hi Gunther!

I always notice: You're very aware. Thanks for that.

Are you just following the subject, or building some UEFI application?