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    /* if DR-DOS env is at seg 0x60 then overwrite my own env in PSP with this.
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    /* if DR-DOS env is at seg 0x60 then overwrite my own env in PSP with this.
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     * Seg 0x60 is used since https://github.com/SvarDOS/edrdos/issues/88 and
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     * Seg 0x60 is used since https://github.com/SvarDOS/edrdos/issues/88 and
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     * it is safe to be used as it won't be overwritten */
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     * it is safe to be used as it won't be overwritten */
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    cmp ax, 0x60
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    cmp ax, 0x60
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    jne FAIL
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    ja FAIL
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    mov bx, 0x2C         /* environment segment field in my PSP */
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    mov bx, 0x2C         /* environment segment field in my PSP */
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    mov [bx], ax
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    mov [bx], ax
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    FAIL:
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    FAIL:
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    pop es
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    pop es