From 848cd0a802fa7ddf13aa8ae1953b32b10a832898 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B8rn=20Guldberg?= <joer0357@yahoo.dk>
Date: Mon, 27 Aug 2018 22:15:29 +0200
Subject: [PATCH] Svim buffer is now written to disk and loaded again

---
 SingOS.img     | Bin 0 -> 139264 bytes
 bootloader.bin | Bin 0 -> 8192 bytes
 kernel.bin     | Bin 0 -> 131072 bytes
 kernel.nasm    |   2 +-
 lib/svim.nasm  |  44 +++++++++++++++++++++++++++++---------------
 5 files changed, 30 insertions(+), 16 deletions(-)
 create mode 100644 SingOS.img
 create mode 100644 bootloader.bin
 create mode 100644 kernel.bin

diff --git a/SingOS.img b/SingOS.img
new file mode 100644
index 0000000000000000000000000000000000000000..cea492634235f2836aa4741e1550c5db155dfb56
GIT binary patch
literal 139264
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z0R#|0009ILKmY**5I_I{1Q0*~0R#|0009ILKmY**5I_I{1Q0*~0R#|0009ILKmY**
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zcY1=1j{pJ)Ab<b@2q1s}0tg_000IagfB*srAb<b@2q1s}0tg_000IagfB*srAb<b@
z2q1s}0tg_000IagfB*srAb<b@2q1s}0tg_000IagfB*srAb<b@2q1s}0tg_000Iag
zfB*srAb<b@2q1s}0tg_000IagfB*srAb<b@2q1s}0tg_000IagfB*srAb<b@2q1s}
z0tg_000IagfB*srAb<b@2q1s}0tg_000IagfB*srAb<b@2q1s}0tg_000IagfB*sr
YAb<b@2q1s}0tg_000Iag@P94vANTK;9{>OV

literal 0
HcmV?d00001

diff --git a/bootloader.bin b/bootloader.bin
new file mode 100644
index 0000000000000000000000000000000000000000..c24ea722c54ff3203cf2b77d8f9cf39573319591
GIT binary patch
literal 8192
zcmeIuK}%af5CGtr@FXf|o=7dFQdaa<2oX;aPeOVsRFbxoo{V{$7&I=t_agLCdJw4;
z@-KR6J;aihwJnd7+=K<~DZK?-WUPpnfFOvjP_TbMPqXY{cV=g1`E)bhBcQhX9fWSi
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z=)}*u(R-j@aMpdgSPq2Uo?NJwL`8WLW|az;Ro;`nC@Np%$}6QOxiPVtN~V%i1N|`P
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z@XEneJmdSyhg`K#uv1}vqtzJPcHl?LdE1^yIH{TRYRrincmFtVGxY)E*87cXkDD_P
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n01L1H3$OqSumB6N01L1H3$OqSumB6N01L1H3$OqS+_u0a0=cRj

literal 0
HcmV?d00001

diff --git a/kernel.bin b/kernel.bin
new file mode 100644
index 0000000000000000000000000000000000000000..2dfa87bdf8b210468632c29ae1261f6ea3f92925
GIT binary patch
literal 131072
zcmeIzU5H#)9RTn%AIl~Kvpcr5L=5HDbis$ZWSS^evuG=}FG_?h>4RW)%+4l5W;0>u
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literal 0
HcmV?d00001

diff --git a/kernel.nasm b/kernel.nasm
index 4839e37..7eea5dd 100644
--- a/kernel.nasm
+++ b/kernel.nasm
@@ -239,4 +239,4 @@ data_os:
 %include "lib/svim.nasm"
 %include "lib/ls.nasm"
 
-times 16384-($-$$) db 0 
+times 131072-($-$$) db 0 
diff --git a/lib/svim.nasm b/lib/svim.nasm
index a7c2f92..265ae7f 100644
--- a/lib/svim.nasm
+++ b/lib/svim.nasm
@@ -30,6 +30,21 @@ svim:
     mov dl, 0x00 ; coloumn zero
     int 0x10
 
+    ; Load from disk and, enter it, into the buffer
+    mov bx, ds
+    mov es, bx
+    xor bx, bx
+    mov bx, .buffer_for_svim
+    xor cx, cx
+    xor ax, ax
+    mov ah, 0x02    ;Read sectors from drive
+    mov al, 0x01    ;Number of sectors to read (8 * 512 = 4096 bytes)
+    mov ch, 0x02    ;Low 8 bits of cylinder
+    mov cl, 0x03    ;First sector to read (bits 0-5), upper bits of cylinder (bits 6-7)
+    mov dh, 0x01    ;Head number
+    mov dl, 0x00    ;Drive number
+    int 0x13 
+
     ; print buffer
     mov si, .buffer_for_svim
     mov es, si
@@ -74,24 +89,23 @@ svim:
     mov bx, .buffer_for_svim
     xor cx, cx
     xor ax, ax 
-    mov ah, 0x3     ;Write sectors from drive
-    mov al, 0x1    ;Number of sectors to read (8 * 512 = 4096 bytes)
-    mov cx, 0x2c    ;First sector to read (bits 0-5), upper bits of cylinder (bits 6-7)
-    mov dh, 0x0    ;Head number
+    mov ah, 0x03     ;Write sectors to drive
+    mov al, 0x01    ;Number of sectors to write (8 * 512 = 4096 bytes)
+    mov cl, 0x03    ;First sector to read (bits 0-5), upper bits of cylinder (bits 6-7)
+    mov ch, 0x02
+    mov dh, 0x01    ;Head number
     mov dl, 0x0    ;Drive number
     int 0x13         ;Low level disk services
 
-    call dumpax_os
-
-    ; clen up swim
-    ;;xor bx, bx
-    ;;xor cx, cx   ; Upper and left coordinate 
-    ;;mov bh, 0x0f ; color for new screen 0 = black f =  white    
-    ;;mov dh, 0xff ; Select all screen 
-    ;;mov dl, 0xff ; Select all screen 
-    ;;mov ah, 0x07 ; scrool down 
-    ;;mov al, 0x00 ; scrool 0 lines (means blank screen )
-    ;;int 0x10 
+    ; clean up swim
+    xor bx, bx
+    xor cx, cx   ; Upper and left coordinate 
+    mov bh, 0x0f ; color for new screen 0 = black f =  white    
+    mov dh, 0xff ; Select all screen 
+    mov dl, 0xff ; Select all screen 
+    mov ah, 0x07 ; scrool down 
+    mov al, 0x00 ; scrool 0 lines (means blank screen )
+    int 0x10 
     ; Move curser back to the top of the screen 
     mov ah, 0x02
     mov bh, 0x00 ; page number 0