MiniMac is a virtual processor with a tiny but extendable memory and a tiny but extendable instruction set.Heres a screenshot of the MiniMac user interface:A screenshot of a computerDescription automatically generatedThe view panel on the right contains two lists $($javax$.$swing.JList$).$ The top list shows the contents of memory. The bottom list shows the program currently being executed. The control panel on the left contains three buttons $($javax$.$swing.JButton$).$ The first button prompts the user for a program to parse:A screenshot of a computer programDescription automatically generatedThe second button executes the program. The third button resets all memory cells to $0.$These commands are duplicated under the Edit menu. The Help menu explains each command. The File menu contains the items: New, Save, Open, and Quit.The MiniMax memory is an array of integers:int size $=32$;Integer$[]$ memory $=$ new Integer$[$size$]$;A MiniMax program is a list of instructions. An instruction pointer $($ip$)$ indicates the position in the list of the next instruction to be executed.GrammarHeres the instruction set grammar $($note: ~ means followed by and all unquoted tokens are integers$)$:Load ::$=$ load ~ location ~ value $//$ memory$[$location$]=$ valueHalt ::$=$ halt $//$ terminates the programadd ::$=$ add ~ src$1$ ~ src$2$ ~ dest $//$ memory$[$dest$]=$ memory$[$src$1]+$ memory$[$src$2]$mul ::$=$ mul ~ src$1$ ~ src$2$ ~ dest $//$ memory$[$dest$]=$ memory$[$src$1]*$ memory$[$src$2]$bgt ::$=$ bgt ~ location ~ offset $//$ if $0<$ memory$[$location$]$ ip $+=$ offsetblt ::$=$ blt ~ location ~ offset $//$ if memory$[$location$]<0$ ip $+=$ offsetloop ::$=$ loop ~ count ~ instruction $//$ executes instruction count timesA block is a list of one or more instructions separated by semicolons and bracketed by curly braces:block ::$=\{$ ~ instruction ~ $($; ~ instruction$)*$ ~ $\}$Executing a block sequentially executes each instruction in the blocks body.For example, the program shown in the screenshot computes kn$,$ where n is stored in memory$[0].$ The base, k$,$ is stored in memory$[2].$ In this case k $=2,$ n was $7$ and the result, $128,$ is stored in memory$[1].$ Memory$[3]$ is the amount to decrement memory$[0]$ each time the result is multiplied by k$.$