| 摘要 |
<p>PURPOSE:To improve the character processing efficiency by providing a buffer area where the proofreading and input are possible in addition to a screen buffer. CONSTITUTION:The data within a screen buffer 12 are displayed in a standard mode, and the proofreading and input are carried out. In a special mode a cursor address and the head and end addresses of the buffer 12 are set to registers 14-16 respectively. Then the data of an area including a cursor at present is transferred to a field buffer 11, and the head and end addresses of the data within the buffer 11 are set to registers 17 and 18 respectively. The address of the cursor is monitored when a character string is processed with a shift of the cursor and then the character string is supplied. When characters swell out of the buffer 12, the buffer 11 corresponding to the cursor address is defined as an area to be operated.</p> |
