assembly - Jumping to second stage of bootloader -

-

I am working on a bootloader that closes a CD, and by now I have a lot of success in loading DAP Find, find the CD signature, and find the root directory. When I try to jump to the second stage address, the bootloader code will not execute the code, and I have no idea to fix it. Here is my code: 

  READ_STAGE2: print LOADING_STAGE2_MSG, teal phone Print_ln mov di, [DiskAddressPacket.offset] mov es, [DiskAddressPacket.Segment] XOR BX, BX, clears out bx XOR C, C; Ca xar cx, cx Removes: MOV AL, BYTE [ES: DI + BX]; A file entry CMP L drives a byte of a potential launch of BTE [STAGE2]; .request; If this then loops out of the INC BX; Get ready for the next file entry. Jmp .top .done: print found, print file gets print file X_RN XOR SI, SI; Bx; INC CE X-ray cx, cx; Clear for use as a counter .top2:; Comparing the stars to see if they are equal; Ax ax, ax; Clears ACX; MOV AL, BYTE [ES: DI + BX] MOV AH, 0xE INT 0x010; ;;;;;;;;;;;;;; 2 Bin; XOR AX, AX MOV AL, Byte [ES: DI + BX] CMP AL, Byte [Stage2 + SI] JE .Success Phone Print_ln JMP .top. Success: Print Progress_MSG, Purple, Progress Message Congress BX; Get ready for the next character Congress SI; Get ready for the next character INC CX; Salary increase counter CMP CX, Word [STAGE_2_LEN] jne .top2; Clear call phone Print_ln File_Found, teal print; Print found file print_ln print reading_Sectors, teal, mark reading marks of sector; Phone pronounced sub bx, word [STAGE_2_LEN]; Goes into DAP; MOV word [DiskAddressPacket.Offset], DI, MOV word [DiskAddressPacket.Segment], this Li EAX: add the BX to start the file back; The new address runs in ES; To say offset, [ES: DI] MOV DWORD [DiskAddressPacket.End], EAX MOV term [DiskAddressPacket.SectorsToRead], 4XOR cx, cx; How many fields call Read_Sectors to cx in 0x04, clears out cx mov cx, 0x01; Call READ_SUCCESS, TEAL; If it arrives here, it means that it has been successful, where the file is located and print it to run Print_ln print file_Found, TEAL call Print_ln MOV AX, ES call itova mov AL, ':' MOV AH, 0x ENT 0x010 MOV ax, call di Itoa print_ln; The obvious mov [jumptarget], the word de mov [jumptarget + 2], is called ES ES; JMP away [jumptarget] JMP 0x0200: 0x0000; PUSH 0x0200; PUSH 0x0000; Retf. Fail: failed to print, so that the file was not found and the system call was stopped Print_ln print FILE_NOT_FOUND, the red CLI HLT RT

Comments

Post a Comment

Popular posts from this blog

java - org.apache.http.ProtocolException: Target host is not specified -

-
I have written a simple httprequest / response code and I am getting this error below: I used to type in my classpath httpclient, httpcore, common -Codecs and general logging. I am very new to Java and I do not know what's going on here. Please help me. code: import org.apache.http.client.HttpClient; Import org.apache.http.client.methods.HttpGet; Import org.apache.http.HttpResponse; Import org.apache.http.impl.client.HttpClientBuilder; Import org.apache.http.Header; Import org.apache.http.HttpHeaders; Public class UnshorteningUrl {public static zero main (string [] args throws exception {HttpGet request = zero; HTTP Client Client = HTTP ClientBuilder.credit (). Build (); Try {Request = New HTTP Gate ("trib.me/1lBFzSi"); HttpResponse httpResponse = client.execute (request); Header [] header = httpResponse.getHeaders (HttpHeaders.LOCATION); // Preconditions.checkState (headers.length == 1); String new url = header [0] .getValue (); System.out.println ("new url...
Read more

java - Gradle dependencies: compile project by relative path -

-
Is it possible to specify a dependency on another gradeal project in the granular (in android studios) outside the current project limits? For example, with a relative path like this: dependence {collection project ('../../ stdlib / dagger'}} MyApp (path / user / foo / workspace / mypad) The app (Path / User / Foo / Workspace / MyPass / App) And I have an Android Library Project with 3 subdomules: stdlib (path is / user / foo / Utilities (Path / User / Foo / Workspace / Stadlib / Utilis) http (Path / User / Foo / Workspace / Stadlib / HT) / Li> What I have to do is compile the Dagger, Util, http module in the MyApp project. The Stidelib Library module under heavy development And MyApp will grow in the form of Growth, so I do not want to push them into a Mewen repository. I am a little change. is likely to add another Gredle projects in some way? I will push the study library into the Maven repository after the source is in search of a temp...
Read more

ruby on rails - Object doesn't support #inspect when used with .include -

-
So I have participated in a glitch error that I do not even know how to debug. I am very new to the railing, so it has kicked my ass well when I use the .includes (school) seen by the student, it gives a blue box error, But when I look at any other model and .includes (school) , the school works just fine. class student & lt; ActiveRecord :: Base has has_many: relationships, foreign_key: "liker_id", dependent :: has_many: matches, foreign_key: "student_1_id", dependent :: deleted belong_to: school belong_to: conference belong_to: would_you_rather belong_to: home city belong_to: year is_to: Major and class school & lt; on the console activatecord :: Affiliate for the base: conference includes: respondent, class: "school", foreign_key: "rival_id" (e.g. For: School) Select SQL generated Select "School". * "School" from "school" "ID" IN (1) error message back NoMethodError: u...
Read more