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ENVSEG   dw 0    ;  +8
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ENVSEG   dw 0    ;  +8
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; exit code of last application
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; exit code of last application
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LEXCODE  dw 0    ; +0Ah
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LEXCODE  dw 0    ; +0Ah
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; input buffer used for the "previous command" history
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BUF000 db 128, 0 ; +0Ch
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BUF064 db "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF"
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BUF128 db "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF"
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; offset of the COMSPEC variable in the environment block, 0 means "use
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; offset of the COMSPEC variable in the environment block, 0 means "use
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; boot drive". this value is patched by the transient part of COMMAND.COM
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; boot drive". this value is patched by the transient part of COMMAND.COM
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COMSPECPTR dw 0  ; +8Eh
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COMSPECPTR dw 0  ; +0Ch
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; fallback COMSPEC string used if no COMPSEC is present in the environment
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; fallback COMSPEC string used if no COMPSEC is present in the environment
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; drive. drive is patched by the transient part of COMMAND.COM
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; drive. drive is patched by the transient part of COMMAND.COM
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COMSPECBOOT db "@:\COMMAND.COM", 0 ; +90h
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COMSPECBOOT db "@:\COMMAND.COM", 0 ; +0Eh
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; ECHO status used by COMMAND.COM. 0 = ECHO OFF, 1 = ECHO ON
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CMDECHO db 1     ; +9Fh
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; segment of the first batch in batch chain. this is used by transient
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; COMMAND.COM to chain multiple batch files (through CALL). 0 means "none".
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BATCHCHAIN dw 0  ; +A0h
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; original parent (segment of)
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ORIGPARENT dd 0  ; +A2h
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skipsig:         ; +A6h
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skipsig:         ; +1Dh
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; set up CS=DS=SS and point SP to my private stack buffer
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; set up CS=DS=SS and point SP to my private stack buffer
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mov ax, cs
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mov ax, cs
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mov ds, ax
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mov ds, ax
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mov es, ax
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mov es, ax