remove unused code

twasm/asm/main.asm

@@ -695,71 +695,6 @@ identify_next_token:
   mov rdx, rsi ; length
   ret
 
-; ------------------------------------------------------------------------------
-; copy_token 
-;
-; description:
-; copies a token from one spot in memory to another
-;
-; parameters:
-; rdi -> start of buffer to be read
-; rsi -> start of buffer to be written
-;
-; returned:
-; rax -> last byte read
-; rdx -> last byte written
-; ------------------------------------------------------------------------------
-
-copy_token:
-  .loop:
-    mov dl, [rdi] ; move bit to compare to current byte in read buffer
-
-    push rdi ; push incrementors to call elemb
-    push rsi ;
-
-    mov rdi, 8                  ; length of terminator list
-    mov rsi, token_terminator_8 ; start of terminator list
-                                ; dl set before pushing rdi
-    call elemb
-
-    pop rsi ;
-    pop rdi ; pop incrementors after call
-
-    cmp rax, 1 ; check if the next character is a token terminator
-    je .break  ; > if so, break the function
-
-    ; rdi and rsi set from previous loop iteration
-    call copy_byte ; if not, copy the current byte in read buffer
-
-    inc rdi ; read pointer
-    inc rsi ; write pointer
-    jmp .loop
-
-  .break:
-    mov rax, rdi ; -> last byte read
-    mov rdx, rsi ; -> last byte written
-    ret
-    
-; ------------------------------------------------------------------------------
-; copy_byte
-;
-; description:
-; copies a byte from one spot in memory to another
-;
-; parameters:
-; rdi -> word to be read
-; rsi -> word to be written
-;
-; returned:
-; al = byte that was read; the rest of rax is zeroed
-; ------------------------------------------------------------------------------
-
-copy_byte:
-  xor eax, eax ; zero out so it returns fine
-  mov al, [rdi]
-  mov [rsi], al
-  ret
-
 ; ------------------------------------------------------------------------------
 ; utilities
 ; ------------------------------------------------------------------------------