lsfs_16-bit now includes its own print functions

driver/disk.h

@@ -19,25 +19,17 @@ unsigned int data_buffer_segment;
 	pusha
 	lsfs_load_data:
 	    mov ax, index
-		call 0x0000:0x7C2A
 	    mov WORD [DAPACK.lba_addr_dw_low], ax
 	    mov bx, number_sectors
-	    mov ax, bx
-	    call 0x0000:0x7C2A
 	    mov WORD [DAPACK.blkcnt],          bx
 	    mov cx, data_buffer_segment  
-	    mov ax, cx
-	    call 0x0000:0x7C2A
 	    mov WORD [DAPACK.db_addr_segment], cx
 	    mov dx, data_buffer;
-	    mov ax, dx
-	    call 0x0000:0x7C2A
 	    mov WORD [DAPACK.db_addr_offset],  dx
 	    mov si, #DAPACK                          ; address of
 	    mov ah, #0x42                            ; READ
 	    mov dl, [global_disk_identifier] 
 	    int #0x13
-	;call 0x0000:0x7C2A	
 	popa
 	pop bp
 	ret

implementation/lsfs.c

@@ -91,7 +91,6 @@ unsigned int data_segment;
 
     int data_pointer_index = 0; /*  start at first data pointer.  */
     
-    dump_ax(file->size);
     if (data_length > buffer_size)
     {
         data_length = buffer_size;
@@ -121,7 +120,6 @@ unsigned int data_segment;
             }
             disk_service_read_data_from_disk(file->data_pointer[data_pointer_index], DEFAULT_DATA_POINTER_SIZE, tmp_buffer, 0x7e0);
             print_newline();
-            dump_ax(file->data_pointer[data_pointer_index]);
             print_newline();
             memcpy((data + amount_read), data_segment, tmp_buffer, 0x7e0, amount_to_read);
             data_length -= amount_to_read;

main.c

@@ -1,7 +1,3 @@
-/*  Adress to dump ax, 7C2A*/
-/*  Address to print 7C47*/
-/* */
-/* */
 #include "main.h"
 
 
@@ -43,7 +39,6 @@ void* pointer_parameter_struct;
             print_newline();
             print(fsci->filesystem_information);
             print_newline();
-            dump_ax(fsci->master_table_index[0]);
             print_newline();
         } break;
         case SERVICE_FIND_ENTRY:
@@ -51,8 +46,8 @@ void* pointer_parameter_struct;
             String_Array *path_array;
             lsfs_file* find_file;
             int i;
-            dump_ax(fsci->master_table_index[0]);
             disk_service_read_data_from_disk(fsci->master_table_index[0], (long) DEFAULT_TABLE_SIZE, &current_table, stack_segment);
+            /*
             print("Current table: ");
             print_newline();
             print_stack(current_table.entries[0].filename);
@@ -61,11 +56,10 @@ void* pointer_parameter_struct;
             print_newline();
             print_stack(current_table.entries[2].filename);
             print_newline();
-
+            */
             
             memcpy(&parameter_struct, stack_segment, pointer_parameter_struct, pointer_parameter_segment, sizeof(Parameter_Struct));
             path_length = strlen(parameter_struct.path, pointer_parameter_segment); 
-            dump_ax(path_length);
             local_path = malloc(256);
             memcpy(local_path, local_segment, parameter_struct.path, pointer_parameter_segment, path_length);
             local_path[path_length] = 0; 
@@ -90,13 +84,10 @@ void* pointer_parameter_struct;
             print(find_file->filename);
             print_newline();
             print("Kernel file id: ");
-            dump_ax(find_file->file_id[0]);
             print_newline();
             print("Kernel file size: ");
-            dump_ax(find_file->size[0]);
             print_newline();
             print("Kernel first data pointer: ");
-            dump_ax(find_file->data_pointer[0]);
 
             lsfs_disk_read_data_from_file(find_file, 0xffff, 0x00, (long) 0x0, 0x50);
             

std_singos/stdio.h

@@ -8,11 +8,27 @@ char* string;
     push bp
     mov bp,sp
     mov si,4[bp]
-    call 0x0000:0x7C47
+
+    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+    new_print_print:
+    ; Prints string in si
+    ; IN si: zero terminated string to print
+    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+        mov ah, #0xE     ; Specify 'int 0x10' 'teletype output' function
+                        ; [AL = Character, BH = Page Number, BL = Colour (in graphics mode)]
+    .new_print_printchar:
+        lodsb           ; Load byte at address SI into AL, and increment SI
+        test al, al
+        jz .new_print_done        ; If the character is zero (NUL), stop writing the string
+        int #0x10         ; Otherwise, print the character via 'int 0x10'
+        jmp .new_print_printchar  ; Repeat for the next character
+    .new_print_done:
+
     pop bp
 #endasm
 }
 
+
 void print_stack(argument)
 {
 #asm 
@@ -24,7 +40,20 @@ void print_stack(argument)
     mov ax, ss
     mov ds, ax
     mov si,4[bp]
-    call 0x0000:0x7C47
+    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+    print_stack_print:
+    ; Prints string in si
+    ; IN si: zero terminated string to print
+    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+        mov ah, #0xE     ; Specify 'int 0x10' 'teletype output' function
+                        ; [AL = Character, BH = Page Number, BL = Colour (in graphics mode)]
+    .print_stack_printchar:
+        lodsb           ; Load byte at address SI into AL, and increment SI
+        test al, al
+        jz .print_stack_done        ; If the character is zero (NUL), stop writing the string
+        int #0x10         ; Otherwise, print the character via 'int 0x10'
+        jmp .print_stack_printchar  ; Repeat for the next character
+    .print_stack_done:
     
     pop ax
     pop ds
@@ -45,7 +74,26 @@ void* input;
 #asm
     push bp
     mov bp,sp
-    call 0x000:0x7C2A
+
+    pusha           ; save registers
+    mov bx, ax
+    mov ah, #0xE     ; Teletype output
+
+    mov cx, #4       ; 4 nipples in a 16 bit word
+    .dump_ax_loop:
+    rol bx, #4       ; rotate to next nipple
+    mov al, bl      ; we copy to al because we need to mask only the low 4 bits
+    and al, #%1111   ; Do the masking
+    add al, #48     ; convert to ASCII
+    cmp al, #57     ; If we are greater than 9 ascii, we add 7 to make digit 10 be represented as 'A'
+    jbe .dump_ax_skip       ;  -|-
+    add al, #7       ;  -|-
+    .dump_ax_skip:          ;  -|-
+    int #0x10        ; BIOS call 'output'
+    loop .dump_ax_loop
+
+    popa            ; restore registers
+
     pop bp
 #endasm
 }