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Fix up sections variables are created in, major code cleanup, remove protection removal. Completed! :D

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This commit is contained in:
n-a-c-h
2005-01-03 16:03:39 +00:00
parent 0c0097b919
commit a7598101d8
19 changed files with 87 additions and 420 deletions
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81
zsnes/src/dos/vesa2.asm
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@@ -28,11 +28,7 @@ EXTSYM UnusedBit,HalfTrans,UnusedBitXor,ngrposng,nggposng,ngbposng
EXTSYM Init_2xSaIMMX
NEWSYM Vesa2AsmStart
SECTION .data
; add 0214h video mode
anticrash times 10 db 0
@@ -162,8 +158,10 @@ NEWSYM VESA2EXITTODOS
call Change_Dir
jmp DosExit
SECTION .data
.exitfromvesa2 db 'Unable to Initialize VESA2 : ',0
.return db 10,13,0
SECTION .text
;*******************************************************
; Set up Vesa 2
@@ -182,8 +180,6 @@ NEWSYM InitVesa2
jnc .gotmem
mov edx,.nomemmessage
jmp VESA2EXITTODOS
.nomemmessage
db 'Unable to locate DOS memory.',0
.gotmem
mov fs,dx ; FS now points to the DOS
@@ -214,8 +210,7 @@ NEWSYM InitVesa2
jnc .int1ok
mov edx,.noint1message
jmp VESA2EXITTODOS
.noint1message
db 'Simulated real mode interrupt failed.',0
.int1ok ; Real mode int successful!!!
mov eax,[RMREGS.eax]
@@ -223,24 +218,19 @@ NEWSYM InitVesa2
jz .vbedetected
mov edx,.novbemessage
jmp VESA2EXITTODOS
.novbemessage
db 'VBE not detected!!',0
.vbedetected
cmp dword[fs:0000],'VESA'
jz .vesadetected ; Check for presence of vesa
mov edx,.novesamessage
jmp VESA2EXITTODOS
.novesamessage
db 'VESA not detected!',0
.vesadetected
cmp word[fs:0004],200h
jae .vesa2detected ; Check we've got VESA 2.0 or greater
mov edx,.novesa2message
jmp VESA2EXITTODOS
.novesa2message
db 'VESA 2.0 or greater required!',0
;-----------------------------------------------------;
@@ -263,8 +253,6 @@ NEWSYM InitVesa2
jnc .wegottheselector
mov edx, .oopsnoselector
jmp VESA2EXITTODOS
.oopsnoselector
db 'Failed to allocate vesa display selector!',0
.wegottheselector
@@ -288,8 +276,6 @@ NEWSYM InitVesa2
.outofmodelistspace
mov edx,.outofmodelistspacemessage
jmp VESA2EXITTODOS
.outofmodelistspacemessage
db 'Out of VESA2 mode list space!',0
;----------------------------------------------;
; OK - Scan the mode list to find a matching ;
@@ -309,9 +295,6 @@ NEWSYM InitVesa2
mov edx,.endoflist
jmp VESA2EXITTODOS
.endoflist db 'This VESA2 mode does not work on your video card / driver.',0
.whichwin db 0
.notendoflist
mov edi, RMREGS
@@ -331,8 +314,6 @@ NEWSYM InitVesa2
jnc .modecheckok
mov edx,.modecheckfail
jmp VESA2EXITTODOS
.modecheckfail
db 'Real mode interrupt failure while checking vesa mode',0
.modecheckok
add ebp,2
@@ -622,17 +603,12 @@ NEWSYM InitVesa2
xor word[vesa2_clbit],0FFFFh
;vesa2_rtrcl dw 0 ; red transparency clear (bit+4)
;vesa2_rtrcla dw 0 ; red transparency (AND) clear (not(bit+4))
;vesa2_rfull dw 0 ; red max (or (bit-1)*1Fh)
call genfulladdtab
test word[fs:0h],10000000b ; Check if linear available
jnz .linearavailable
mov edx,.nolframebuffer
jmp VESA2EXITTODOS ; None available
.nolframebuffer db 'Linear Frame Buffer not Detected.',0
;---------------------------------------------;
; OK - now set the vesa 2 mode based on the ;
@@ -655,7 +631,6 @@ NEWSYM InitVesa2
jnc .mappedphysicalarea
mov edx,.unablemap
jmp VESA2EXITTODOS ; Failure!!!
.unablemap db 'Unable to map physical area.',0
.mappedphysicalarea
shl ebx,16
@@ -676,8 +651,7 @@ NEWSYM InitVesa2
jz .modesetok
mov edx,.unableset
jmp VESA2EXITTODOS ; Failure!!!
.unableset db 'Unable to initialize video mode.',0
.modesetok
;******************************* EXTRA BIT ****************************
@@ -708,7 +682,6 @@ NEWSYM InitVesa2
jz .correctwidth
mov edx, .unablescan
jmp VESA2EXITTODOS ; Failure!!!
.unablescan db 'Unable to set scan line length.',0
.correctwidth
@@ -728,7 +701,6 @@ NEWSYM InitVesa2
jnc .selectornowset
mov edx,.unablelfb
jmp VESA2EXITTODOS ; Failure!!!
.unablelfb db 'Unable to set selector to LFB.',0
.selectornowset
@@ -744,7 +716,6 @@ NEWSYM InitVesa2
jnc .ok
mov edx,.unablesets
jmp VESA2EXITTODOS ; Failure!!!
.unablesets db 'Unable to set size of selector.',0
.ok
lar ecx,ebx
@@ -757,7 +728,6 @@ NEWSYM InitVesa2
jnc .accessrightsset
mov edx,.unablesetar
jmp VESA2EXITTODOS
.unablesetar db 'Unable to set selector access rights.',0
.accessrightsset
mov [vesa2selec],bx
@@ -776,6 +746,23 @@ NEWSYM InitVesa2
SECTION .data
.nomemmessage db 'Unable to locate DOS memory.',0
.noint1message db 'Simulated real mode interrupt failed.',0
.novbemessage db 'VBE not detected!!',0
.novesamessage db 'VESA not detected!',0
.novesa2message db 'VESA 2.0 or greater required!',0
.oopsnoselector db 'Failed to allocate vesa display selector!',0
.outofmodelistspacemessage db 'Out of VESA2 mode list space!',0
.endoflist db 'This VESA2 mode does not work on your video card / driver.',0
.whichwin db 0
.modecheckfail db 'Real mode interrupt failure while checking vesa mode',0
.nolframebuffer db 'Linear Frame Buffer not Detected.',0
.unablemap db 'Unable to map physical area.',0
.unableset db 'Unable to initialize video mode.',0
.unablescan db 'Unable to set scan line length.',0
.unablelfb db 'Unable to set selector to LFB.',0
.unablesets db 'Unable to set size of selector.',0
.unablesetar db 'Unable to set selector access rights.',0
NEWSYM LFBpointer
dd 0
@@ -794,29 +781,6 @@ NEWSYM vesamode
SECTION .bss
NEWSYM VESAmodelist, times 512 resw 1
;NEWSYM RMREGS
;.edi dd 0
;.esi dd 0
;.ebp dd 0
;.esp dd 0
;.ebx dd 0
;.edx dd 0
;.ecx dd 0
;.eax dd 0
;
;.flags dw 0
;.es dw 0
;.ds dw 0
;.fs dw 0
;.gs dw 0
;.ip dw 0
;.cs dw 0
;.sp dw 0
;.ss dw 0
;.spare times 20 dd 0
NEWSYM RMREGS
.edi resd 1
.esi resd 1
@@ -838,4 +802,3 @@ NEWSYM RMREGS
.ss resw 1
.spare times 20 resd 1
;----------------------------------------------------------------------
NEWSYM Vesa2AsmEnd