The fid BASIC program displays information about a memory-resident frame.
For Windows: Not Supported
fid frame-ID{(options)}
| options | n | Outputs report without pausing at the bottom of each page. |
| p | Directs output to system printer via the spooler. |
fid 122 I i t n b r w m o o o o a e t l f w b p t t u r o r r u h i c s e c e i s s a h e q k f t y h q b d ----------------- 0 1 1 0 0 1 0 0 0 A fwdhq fwdaq bckaq buffid btwa - ------ ------ ------ ------ ------- 0 000000 000000 000000 00007A 400CB800
In the vertical columns above, each of the bit settings for the given are descriptions of each bit. Any column with a 0 underneath indicates that the corresponding value is off. A nonzero indicates that the value is on.
| wtreq | Indicates a write-required state. |
| mlock | Indicates a memory-locked (core-locked) state. |
| fref | Indicates that this frame has been referenced recently. |
| iowrit | Indicates that the frame is being written, or is enqueued for writing. |
| iobusy | Indicates that this frame is being read from disk. |
| tophsh | Indicates that this buffer is at the top of the internal memory hash list. |
| notiaq | Indicates that this buffer will soon be gone. |
| batchb | Indicates that this FID was brought into memory by a batch process. |
| reused | Indicates that the buffer is eligible for immediate reuse. |
| Attr | Number of virtual registers attached to this buffer. |
| fwdhq bckaq fwdaq | All pointers to an internal management list. |
| buffid | FID of the buffer. |
| btwa | Indicates the real address of the buffer. |