I have some experience with IDA and now I'm trying to use Radare2/Cutter the same way. I disassemble a DOS MZ file. I have the following:

;-- section.seg_000: 12: entry0 (); 0000:0000 push ds ; [00] -rwx section size 10784 named seg_000 0000:0001 xor ax, ax ;-- di: 0000:0003 push ax 0000:0004 mov ah, 0x30 ; '0' 0000:0006 int 0x21 0000:0008 mov byte cs:[0x11], al 665: fcn.0000000c (); 0000:000c cmp al, 2 0000:000e jae 0x12 0000:0010 retf 0000:0011 .byte 0x00 ; RELOC 16 0000:0012 mov ax, 0x2a2 ; RELOC 16 

I want to label address 0x11 as DOSVersion and reference it by this name instead of the offset. In IDA (Turbo Assembler syntax), I can make it look like this:

proc Main far push ds xor ax, ax push ax mov ah, DOS_FN_VERSION int DOS_INT mov [cs:DOSVersion], al cmp al, DOS_VERSION_2_0 jnb short ProperDosVer retf DOSVersion db 0 ProperDosVer: mov ax, DSEG 

How can I achieve the same result with Radare2/Cutter?