retrodos

retrodos

MSDOS 1.25-2.11-3.3-5.0-6.22和PCDOS 7.1（派生，重新開發）內核（and command.com）源代碼中的nasm語法中的源代碼

鏈接：https：//www.singlix.com/trdos/retrodos/index.html

www.youtube.com/@erdogantan

筆記：
==大約等於（基於” MSDOS ..（但包含比原始代碼更優化的代碼）大致等於（相當於）或“基於”）

retro dos kernel and command.com源代碼彙編器：nasm（“多部分二進製文件格式”方法）

                                    construction: Retro DOS bootsector (loads combined kernel)
                                                  MSDOS.SYS (IO.SYS+MSDOS.SYS), COMMAND.COM
                                                  PCDOS.SYS (IBMBIO.COM+IBMDOS.COM), COMMAND.COM -Retro DOS v5 only-
                                     source code: retrodos5.s (includes ibmdos7.bin), ibmdos7.s, command7.s 
                                                  retrodos42.s (includes msdos6.bin), msdos6.s, command6.s
                                                  
                                     alternative: MSDOS/PCDOS bootsector (loads MSLOAD sectors)
                                                  same with MSDOS and PCDOS       
                                     source code: iosys6.s, msdos6.s, command6.s (for Retro DOS v4.2)
                                                  ibmbio7.s, ibmdos7.s, command7.s (for Retro DOS 5.0)  
                                                  
                         MSDOS and PCDOS assembler: MASM (segment group linked together)
                            construction: boot sector (loads MSLOAD sectors)
                                          IO.SYS (MSLOAD+BIOS+SYSINIT), MSDOS.SYS, COMMAND.COM 
                                          IBMBIO.COM (MSLOAD+BIOS+SYSINIT), IBMDOS.COM, COMMAND.COM

retro dos v1.0 == msdos 1.25
retro dos v2.0 == msdos 2.11
retro dos v3.0 == msdos 3.3-與Windows 3.1-不兼容
retro dos v3.1 == compact（比retro dos v3.0的改進） - 與Windows 3.1-兼容
retro dos v3.2 == MSDOS 3.3 + 32位磁盤扇區支持（如MSDOS 5.0中的類似）-Windows 3.1兼容 -
retro dos v3.3 == msdos 3.3 -Windows 3.1兼容 - （但此內核不支持32位磁盤扇區）

retro dos v4.0 == msdos 5.0
retro dos v4.1 == compact（比Retro dos v4.0改進了一點）
retro dos v4.2 == msdos 6.22（沒有dblspace功能）-Multi配置菜單支持 -

retro dos v5.0 == ibm pcdos 7.1（帶有錯誤文件）-FAT32文件系統支持 -

retro dos v3.3至5.0與Windows 3.1完全兼容。

Retro DOS v5.0具有PCDOS 7.1的所有功能。 （還包含10個錯誤文件，9個IBM，1個Microsoft Code BugFix）

             (If a program runs on PCDOS 7.1, it also will run on Retro DOS v5.0)
   
             ((Only exception: Program must not stand on original IBMBIO.COM and IBMDOS.COM order and layout.))

Erdogan Tan-伊斯坦布爾-2024