Rewrote unified Mode-X blitter in DOS port. [TRAC]

zsnes/src/ui.asm

@@ -159,7 +159,7 @@ NEWSYM	outofmemory
 SECTION .data
 NEWSYM mydebug, db '',13,10,0
 NEWSYM outofmem, db 'You don',39,'t have enough memory to run this program!',13,10,0
-%define ZVERSION '337  '
+%define ZVERSION '337'
 ;%define ZBETA    0
 
 ; Line added by Peter Santing
@@ -176,27 +176,34 @@ NEWSYM welcome
 ;                 db 'PRIVATE BETA VERSION!!!  PLEASE DO NOT DISTRIBUTE!!!  Thank you!',13,10
 ;                 db 'Private Beta is Registered to : ',USERNAMEN,13,10
 ;%else
+                 db 'ZSNES v1.',ZVERSION,' beta (c) 1997-2001, ZSNES Team (zsKnight & _Demo_)',13,10
 %ifdef __LINUX__
-                 db 'ZSNES v1.',ZVERSION,' beta (c)1997-2001 ZSNES Team (zsKnight - _Demo_)',13,10
+                 db 'Compiled under NASM and GCC. (Linux/FreeBSD)',13,10,13,10
-                 db 'Linux version, please report crashes to zsnes-devel@lists.sourceforge.net.',13,10
-                 db 'Compiled under NASM, GCC',13,10,13,10
 %else
-                 db 'ZSNES v1.',ZVERSION,' beta (c)1997-2001 ZSNES Team (zsKnight - _Demo_)',13,10
+%ifdef __WIN32__
-                 ; ZSNES DOS doesn't use WDOSX anymore
+                 db 'Compiled under NASM and MSVC++. (Windows)',13,10,13,10
-                 db 'Compiled under NASM, GCC (DOS+DPMI)',13,10,13,10
+%else
+                 db 'Compiled under NASM and DJGPP. (DOS w/ DPMI)',13,10,13,10
+%endif
 %endif
 ;%endif
-                 db '  Programmers     : zsKnight, _Demo_',13,10
+                 db 'Be sure to check http://www.zsnes.com/ for the latest version.',13,10
-                 db '  Assistant Coder : Pharos',13,10,13,10
+                 db 'Please report crashes to zsnes-devel@lists.sourceforge.net.',13,10,13,10
+                 db '  Main Coders      : zsKnight, _Demo_, and pagefault',13,10
+                 db '  Assistant Coders : Pharos, teuf, theoddone33, and stainless',13,10,13,10
                  db 'ZSNES comes with ABSOLUTELY NO WARRANTY.  This is free software,',10,13
                  db 'and you are welcome to redistribute it under certain conditions;',10,13
-                 db 'check license.txt.',10,13,10,13
+%ifdef __LINUX__
-                 db 'Use ZSNES -? for command line definitions',13,10,13,10,0
+                 db 'please read ',39,'LICENSE',39,' thoroughly before using it.',10,13,10,13
+%else
+                 db 'please read ',39,'LICENSE.TXT',39,' thoroughly before using it.',10,13,10,13
+%endif
+                 db 'Use ZSNES -? for command line definitions.',13,10,13,10,0
 
 ;cpuidfname db 'nocpuzid.dat',0
 ;cpuidtext db 'NOTE: If ZSNES crashes here, then please re-run. ',0
 ;cpuidtext2 db 13,'                                                 ',13,0
-YesMMX    db 'MMX support enabled.',13,10,13,10,0
+YesMMX    db 'MMX support found and enabled.',13,10,13,10,0
 
 ; global variables
 

zsnes/src/video/copyvid.inc

@@ -396,7 +396,7 @@ NEWSYM copymodex224
     mov eax,(320*225)/4
 .pageb
 
-    mov dl,222
+    mov bl,222
     jmp copymodexloop
 
 ;*******************************************************
@@ -438,8 +438,8 @@ NEWSYM copymodex240
     mov eax,(320*240)/4
 .pageb
 
-    mov dl,[resolutn]
+    mov bl,[resolutn]
-    sub dl,2
+    sub bl,2
     jmp copymodexloop
 
 ;*******************************************************
@@ -481,110 +481,84 @@ NEWSYM copymodex256
     mov eax,(320*256)/4
 .pageb
 
-    mov dl,[resolutn]
+    mov bl,[resolutn]
-    sub dl,2
+    sub bl,2
     jmp copymodexloop
 
 ;eax = VGA address of output page
 ;edi = offset in current page of first line
 ;esi = address of first line to be copied
-;dl = number of lines to copy
+;bl = number of lines to copy
 NEWSYM copymodexloop
     add edi,eax
     mov [.pageaddress],eax
-    mov [.linecount],dl
+    mov [.linecount],bl
     mov [.startesi],esi
     mov [.startedi],edi
 
-.loopa1
+; register allocation
-    mov ecx,16
+; bl = line counter (0-total lines)
-.loopb1
+; bh = other line counter (descriptive, eh?) (0-8)
-    mov ah,[esi+12]
+; ebp = plane counter
-    mov al,[esi+8]
+; ch = plane enable bit
-    shl eax,16
+; cl = 4-pixel copy counter
-    mov ah,[esi+4]
+; edx= pixel processing & I/O address
-    mov al,[esi+0]
+; eax = pixel processing & I/O data
-    mov [es:edi],eax
+
-    add esi,16
-    add edi,4
-    dec ecx
-    jnz .loopb1
-    add esi,32
-    add edi,16
-    dec dl
-    jnz .loopa1
     mov dx,03C4h
-    mov ax,0202h
+
+.loopa
+    mov ebp,4
+    mov ch,1
+    cmp bl,8
+    mov bh,bl
+    jb .loopb
+    mov bh,8
+
+.loopb
+    ; set write plane
+    mov ah,ch
+    add ch,ch
+    mov al,02h
     out dx,ax
-    mov esi,[.startesi]
+
+    push ebx
+    push edi
+    push esi
+
+.loopc
+    ; loop count
+    mov cl,16
+.loopd
+    mov al,[esi+8]
+    mov ah,[esi+12]
+    shl eax,16
+    mov al,[esi+0]
+    mov ah,[esi+4]
+    add esi,16
+    mov [es:edi],eax
+    add edi,4
+    dec cl
+    jnz .loopd
+
+    add esi,16+16
+    add edi,(320-256)/4
+    dec bh
+    jnz .loopc
+
+    pop esi
+    pop edi
+    pop ebx
+
     inc esi
-    mov edi,[.startedi]
+    dec ebp
-    mov dl,[.linecount]
+    jnz .loopb
-.loopa2
+
-    mov ecx,16
+    ; next line
-.loopb2
+    add esi,(16+256+16)*8-4
-    mov ah,[esi+12]
+    add edi,320*8/4
-    mov al,[esi+8]
+    sub bl,bh
-    shl eax,16
+    jnz .loopa
-    mov ah,[esi+4]
-    mov al,[esi+0]
-    mov [es:edi],eax
-    add esi,16
-    add edi,4
-    dec ecx
-    jnz .loopb2
-    add esi,32
-    add edi,16
-    dec dl
-    jnz .loopa2
-    mov dx,03C4h
-    mov ax,0402h
-    out dx,ax
-    mov esi,[.startesi]
-    add esi,2
-    mov edi,[.startedi]
-    mov dl,[.linecount]
-.loopa3
-    mov ecx,16
-.loopb3
-    mov ah,[esi+12]
-    mov al,[esi+8]
-    shl eax,16
-    mov ah,[esi+4]
-    mov al,[esi+0]
-    mov [es:edi],eax
-    add esi,16
-    add edi,4
-    dec ecx
-    jnz .loopb3
-    add esi,32
-    add edi,16
-    dec dl
-    jnz .loopa3
-    mov dx,03C4h
-    mov ax,0802h
-    out dx,ax
-    mov esi,[.startesi]
-    add esi,3
-    mov edi,[.startedi]
-    mov dl,[.linecount]
-.loopa4
-    mov ecx,16
-.loopb4
-    mov ah,[esi+12]
-    mov al,[esi+8]
-    shl eax,16
-    mov ah,[esi+4]
-    mov al,[esi+0]
-    mov [es:edi],eax
-    add esi,16
-    add edi,4
-    dec ecx
-    jnz .loopb4
-    add esi,32
-    add edi,16
-    dec dl
-    jnz .loopa4
 
     pop es
 
@@ -610,6 +584,7 @@ NEWSYM copymodexloop
 .setpageb
     mov [whichpage],al
     ret
+
 SECTION .bss
 .startesi resd 1
 .startedi resd 1
@@ -619,7 +594,6 @@ SECTION .bss
 NEWSYM whichpage, resb 1          ; active page and visual page locations
 SECTION .text
 
-
 ;*******************************************************
 ; CopyModeQ 224       Copies buffer into chained 256x224
 ;*******************************************************