From 2945b2faa635c8c7534e6b4f73cea836c8b88cf5 Mon Sep 17 00:00:00 2001
From: "Andrey Halyavin (halyavin)" <halyavin@land.ru>
Date: Thu, 16 Feb 2006 06:44:47 +0000
Subject: [PATCH] optimized by size version from diamond

git-svn-id: svn://kolibrios.org@47 a494cfbc-eb01-0410-851d-a64ba20cac60
---
 programs/end/trunk/end.asm | 184 +++++++++++++++++--------------------
 1 file changed, 85 insertions(+), 99 deletions(-)

diff --git a/programs/end/trunk/end.asm b/programs/end/trunk/end.asm
index a230998439..61fd6f51e5 100644
--- a/programs/end/trunk/end.asm
+++ b/programs/end/trunk/end.asm
@@ -1,86 +1,16 @@
 ;
 ; END
 ;
+; <diamond> note that 'mov al,xx' is shorter than 'mov eax,xx'
+;           and if we know that high 24 bits of eax are zero, we can use 1st form
+;           the same about ebx,ecx,edx
 
-include "lang.inc"
 include "macros.inc"
 
 meos_app_start
 code
 
-    mov   eax,40
-    mov   ebx,0111b
-    int   0x40
-
-    call  draw_window
-
-still:
-
-    mov  eax,10 		; wait here for event
-;    mov  ebx,100
-    int  0x40
-
-    cmp  eax,1
-    jz	 red
-    cmp  eax,2
-    jz	 key
-    cmp  eax,3
-    jz	 button
-
-    jmp  still
-
-  red:
-    call draw_window
-    jmp  still
-
-  key:
-     mcall 2
-     cmp  ah,13
-     jz   restart
-     cmp  ah,27
-     jz   close_1
-     cmp  ah,180
-     jz   restart_kernel
-     cmp  ah,181
-     jz   power_off
-     jmp  red
-
-  button:
-    mov  eax,17
-    int  0x40
-
-    cmp  ah,1
-    jne  no_1
- power_off:
-    mcall 18,9,2
-    jmp  close_1
-
-no_1:
-    cmp  ah,3
-    jne  no_2
- restart:
-    mcall 18,9,3
-    jmp  close_1
-
-no_2:
-    cmp  ah,2
-    jne  no_4
-
-  restart_kernel:
-    mcall 18,9,4
-
-no_4:
-    cmp  ah,4
-    jne  still
-
-  close_1:
-    or	 eax,-1    ; close this program
-    int  0x40
-
-
-draw_window:
-
-    pusha
+do_draw:
 
     mov  eax,48
     mov  ebx,3
@@ -88,26 +18,27 @@ draw_window:
     mov  edx,sizeof.system_colors
     int  0x40
 
-    mov  eax,12 		   ; tell os about redraw start
-    mov  ebx,1
+    mov  al,12 		   ; eax=12 - tell os about redraw start
+    mov  bl,1
     int  0x40
 
-    mov  eax,14 		   ; get screen max x & max y
+    mov  al,14 		   ; eax=14 - get screen max x & max y
     int  0x40
 
-    xor  ecx,ecx
-    mov  cx,ax
+    movzx ecx,ax
 
     shr  eax,17
-    sub  eax,110
+;    sub  eax,110
     shl  eax,16
-    mov  ebx,eax
-    add  ebx,220
+;    mov  ebx,eax
+;    add  ebx,220
+    lea  ebx,[eax-110*10000h+220]
 
     shr  ecx,1
-    sub  ecx,50
+;    sub  ecx,50
     shl  ecx,16
-    add  ecx,100
+;    add  ecx,100
+    sub  ecx,50*10000h - 100
 
     mov  eax,0			   ; define and draw window
     mov  edx,[sc.work_button]
@@ -116,20 +47,26 @@ draw_window:
     int  0x40
 
    xor edx,edx
-   mcall 13,14 shl 16+90,25 shl 16+27
-   mcall 13,117 shl 16+90,
-   mcall 13,14 shl 16+90,59 shl 16+27
-   mcall 13,117 shl 16+90,
+   mov al,13
+   mcall ,14 shl 16+90,25 shl 16+27
+   push ebx
+   mcall ,117 shl 16+90,
+   xchg ebx,[esp]
+   mcall ,,59 shl 16+27
+   pop  ebx
+   mcall
 
-   mcall 8,15 shl 16+87,26 shl 16+24,1,0xdd7700
-   inc dl
-   mcall 8,118 shl 16+87,,,0xbbbb   ;cccc
-   inc dl
-   mcall 8,15 shl 16+87,60 shl 16+24,,0xbb00
-   inc dl
-   mcall 8,118 shl 16+87,,,0xbbbbbb ;cccccc
+   mov al,8
+   inc edx
+   mcall ,15 shl 16+87,26 shl 16+24,,0xdd7700
+   inc edx
+   mcall ,118 shl 16+87,,,0xbbbb   ;cccc
+   inc edx
+   mcall ,15 shl 16+87,60 shl 16+24,,0xbb00
+   inc edx
+   mcall ,118 shl 16+87,,,0xbbbbbb ;cccccc
 
-    mov  eax,4			   ; 0x00000004 = write text
+    mov  al,4			   ; 0x00000004 = write text
     mov  ebx,75*65536+10
     mov  ecx,[sc.work_button_text] ; 8b window nro - RR GG BB color
     or	 ecx,0x10000000
@@ -159,15 +96,64 @@ draw_window:
     mov  esi,label5_len 	   ; text length
     int  0x40
 
-    mov  eax,12 		   ; tell os about redraw end
+    mov  al,12 		   ; tell os about redraw end
     mov  ebx,2
     int  0x40
 
-    popa
+still:
 
-    ret
+    mov  eax,10 		; wait here for event
+    int  0x40
 
+    dec  eax
+    jz   do_draw
+    dec  eax
+    jnz  button
+  key:
+    mov  al,2	; now eax=2 - get key code
+    int  40h
+    mov  al,ah
+     cmp  al,13
+     jz   restart
+     cmp  al,27
+     jz   close_1
+     cmp  al,180
+     jz   restart_kernel
+     cmp  al,181
+     jz   power_off
+     jmp  still
 
+  button:
+    mov  al,17	; now eax=17 - get pressed button id
+    int  0x40
+    xchg al,ah
+    dec  eax
+    jz   power_off
+    dec  eax
+    jz   restart_kernel
+    dec  eax
+    jz   restart
+; we have only one button left, this is close button
+;    dec  eax
+;    jnz  still
+close_1:
+    or   eax,-1
+    int  40h
+
+ power_off:
+    push 2
+    jmp  mcall_and_close
+
+ restart:
+    push 3
+    jmp  mcall_and_close
+
+  restart_kernel:
+    push 4
+mcall_and_close:
+    pop  ecx
+    mcall 18,9
+    jmp  close_1
 
 data