Code generating patterns

Each comment in the table below means that in this place simple playing_the_template_parameter should be done.

<tt> is playing_the_parameter where the parameter name is tt.

Name	Register architecture	Stack architecture
Subtract	/*put the code leaving result of the right argument in the A register*/ PUSH A /*put the code leaving result of the left argument in the A register*/ POP B SUB A,B	/*put the code leaving result of the left argument on the stack*/ /*put the code leaving result of the right argument on the stack*/ SUB
Read number	MOV A,#<number>	PUSH #<number>
Declare variable	DD <ID>	DD <ID>
Read variable	MOV A,[<ID>]	PUSH [<ID>]
Write variable	MOV [<ID>],A	POP [<ID>]
if The label must be unique for each if in the code!	/*put the code leaving results of the boolean expression in A and flags*/ JE label_else_xx /*put the then code*/ JMP label_endif_xx label_else_xx: /*put the else code*/ label_endif_xx:	/*put the code leaving results of the boolean expression on the stack*/ PUSH #label_else_xx JE /*put the then code*/ PUSH #label_endif_xx JMP label_else_xx: /*put the else code*/ label_endif_xx:

to be continued...