version 1.10, 1995/10/11 19:39:31
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version 1.11, 1995/11/07 18:06:29
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Line 67 You need to read this only if you see a
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Line 67 You need to read this only if you see a
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"gforth: Cannot load nonrelocatable image (compiled for address 0x1234) at address 0x5678 |
"gforth: Cannot load nonrelocatable image (compiled for address 0x1234) at address 0x5678 |
The Gforth installer should look into the INSTALL file" |
The Gforth installer should look into the INSTALL file" |
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Gforth supports relocatable and fixed-address images. If you load |
Gforth supports both relocatable and fixed-address images. If you load |
normal Forth code and save the image, you get a fixed-address |
normal Forth code and save the image, you get a fixed-address |
image. Producing a relocatable image is more difficult. |
image. Producing a relocatable image is more difficult. |
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Consequently, Gforth has only a relocatable image of the kernel |
Therefore, Gforth has only a relocatable image of the kernel |
(kernal.fi), which is powerful enough to load the rest of |
(kernal.fi), which is powerful enough to load the rest of |
Gforth. However, loading the rest takes a noticable amount of time. To |
Gforth. However, loading the rest takes a noticable amount of time. To |
avoid this delay on every startup,the installation procedure produces |
avoid this delay (which would occur on every startup), the |
an image fixed at an address determined at the Gforth run that |
installation procedure produces an image fixed at an address |
produced the image. This fixed-address image is loaded by default. On |
determined at the Gforth run that produced the image. This |
most OSs this works, because the first chunk of memory is always |
fixed-address image is loaded by default. On most OSs this works, |
allocated at the same address. If the address changes, you get the |
because the first chunk of memory is always allocated at the same |
message above. |
address. If the address changes, you get the message above. |
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An image address change can be caused by a change of the gforth |
An image address change can be caused by a change of the gforth |
executable, or by a change (upgrade) of the OS; in these cases you |
executable, or by a change (upgrade) of the OS; in these cases you |