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drive component impl

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This commit is contained in:
Speedy_Lex 2025-07-01 21:39:07 +02:00
parent a8c94ed70e
commit b92e71bfc9
1 changed files with 18 additions and 0 deletions
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18
src/components/drive.c
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@ -75,6 +75,22 @@ void nn_drive_readByte(nn_drive *drive, void *_, nn_component *component, nn_com
nn_return(computer, nn_values_integer(buf[sector_offset])); nn_return(computer, nn_values_integer(buf[sector_offset]));
} }
void nn_drive_writeByte(nn_drive *drive, void *_, nn_component *component, nn_computer *computer) {
nn_value offsetValue = nn_getArgument(computer, 0);
nn_value writeValue = nn_getArgument(computer, 1);
size_t disk_offset = nn_toInt(offsetValue);
char write = nn_toInt(writeValue);
size_t sector_size = drive->getSectorSize(component, drive->userdata);
int sector = disk_offset / sector_size;
size_t sector_offset = disk_offset % sector_size;
char buf[sector_size];
drive->readSector(component, drive->userdata, sector, &buf);
buf[sector_offset] = write;
drive->writeSector(component, drive->userdata, sector, buf);
}
void nn_loadDriveTable(nn_universe *universe) { void nn_loadDriveTable(nn_universe *universe) {
nn_componentTable *driveTable = nn_newComponentTable("drive", NULL, NULL, (void *)nn_drive_destroy); nn_componentTable *driveTable = nn_newComponentTable("drive", NULL, NULL, (void *)nn_drive_destroy);
@ -87,6 +103,8 @@ void nn_loadDriveTable(nn_universe *universe) {
nn_defineMethod(driveTable, "getCapacity", true, (void *)nn_drive_getCapacity, NULL, "getCapacity():number - Returns the total capacity of the drive, in bytes."); nn_defineMethod(driveTable, "getCapacity", true, (void *)nn_drive_getCapacity, NULL, "getCapacity():number - Returns the total capacity of the drive, in bytes.");
nn_defineMethod(driveTable, "readSector", false, (void *)nn_drive_readSector, NULL, "readSector(sector:number):string - Read the current contents of the specified sector."); nn_defineMethod(driveTable, "readSector", false, (void *)nn_drive_readSector, NULL, "readSector(sector:number):string - Read the current contents of the specified sector.");
nn_defineMethod(driveTable, "writeSector", false, (void *)nn_drive_writeSector, NULL, "writeSector(sector:number, value:string) - Write the specified contents to the specified sector."); nn_defineMethod(driveTable, "writeSector", false, (void *)nn_drive_writeSector, NULL, "writeSector(sector:number, value:string) - Write the specified contents to the specified sector.");
nn_defineMethod(driveTable, "readByte", false, (void *)nn_drive_readByte, NULL, "readByte(offset:number):number - Read a single byte at the specified offset.");
nn_defineMethod(driveTable, "writeByte", false, (void *)nn_drive_writeByte, NULL, "writeByte(offset:number, value:number) - Write a single byte to the specified offset.");
} }
nn_component *nn_addDrive(nn_computer *computer, nn_address address, int slot, nn_drive *drive) { nn_component *nn_addDrive(nn_computer *computer, nn_address address, int slot, nn_drive *drive) {