diff --git a/Programs/CosmOS/Assembler/labels.asm b/Programs/CosmOS/Assembler/labels.asm
index e8612c8..6b9ba35 100644
--- a/Programs/CosmOS/Assembler/labels.asm
+++ b/Programs/CosmOS/Assembler/labels.asm
@@ -297,13 +297,18 @@ LabEnd:
 ; How many labels there may be, and how many bytes of name between them.
 ;
 ; SIZED FOR THE ASSEMBLER ITSELF, which turns out to be the largest thing it is asked to
-; build: 555 labels and about 6,800 bytes of name, against CosmOS's 475 and 5,881. Running into
-; either limit says so rather than writing past the end of the table. The buffers live
+; build: 555 labels and about 6,800 bytes of name, against CosmOS's 650 and 8,081 - CosmOS is
+; the bigger of the two now, and was the smaller when this was written. Running into either
+; limit says so rather than writing past the end of the table, and that is what it did. The buffers live
 ; above the program rather than inside it - see the scratch map in Asm.asm.
+; Fifteen hundred and thirty six names, and sixteen kilobytes to hold them in. Both were
+; half that, and the names ran out first: 8,081 bytes of 8,192, which is a hundred and
+; eleven - and the thing that ran into it was one ordinary piece of work adding eighteen
+; labels. THESE TWO MUST AGREE WITH THE SCRATCH MAP, which says where the room actually is.
 LabLimit:
-  0x03 0x00
+  0x06 0x00
 LabRoom:
-  0x20 0x00
+  0x40 0x00
 
 LabNamed:
 ": "
diff --git a/Programs/CosmOS/Assembler/scratch.asm b/Programs/CosmOS/Assembler/scratch.asm
index 9790cf8..6840db1 100644
--- a/Programs/CosmOS/Assembler/scratch.asm
+++ b/Programs/CosmOS/Assembler/scratch.asm
@@ -15,9 +15,9 @@
 ; below 0x1000, the staging area is only in use during a load, and the Stack comes down
 ; from the top. So the addresses are written down here and the file carries none of it.
 ;
-;   0x4000  3072   the label index, 768 entries of four
-;   0x4C00  8192   the label names, packed end to end
-;   0x6C00 29696   the output file being built
+;   0x4000  6144   the label index, 1536 entries of four
+;   0x5800 16384   the label names, packed end to end
+;   0x9800 18432   the output file being built
 ;   0xE000  1792   the vector names, 64 entries of twenty eight
 ;   0xE700  2048   the reader's stack, six levels of 301
 ;   0xEF00   368   which files have been included, sixteen names of 23
@@ -33,11 +33,20 @@
 ; there is still nearly four kilobytes of slack in front of this - and room for its data to
 ; double before the two would meet.
 ;
-; ALL SIXTEEN OF THOSE KILOBYTES WENT TO THE OUTPUT, which was the buffer that was actually
-; full: cosmos.bin is 13,245 bytes against the 13,312 it used to have, which is sixty seven
-; bytes, and the next thing added to the system would have made the machine unable to build
-; it. That is a wall the label table is not yet against, so this is not the place to start
-; sharing the room out evenly.
+; THE ROOM WENT TO ALL THREE OF THE BUFFERS THAT WERE FULL, and there turned out to be
+; three rather than one. The output was the obvious wall - cosmos.bin was 13,245 bytes
+; against 13,312, which is sixty seven - so it was given the lot, and the very next thing
+; added to the system ran out of LABEL NAMES instead, at 8,081 of 8,192. Two ceilings a
+; hundred bytes apart look like one ceiling until the first is lifted.
+;
+; The index was a hundred and eighteen entries from the same place. So: names doubled,
+; index doubled, and the output given what is left, which is still four and a half thousand
+; bytes more than CosmOS needs today.
+;
+; The output's share is temporary. It exists only because the assembler holds a whole
+; finished file in memory before writing it, and that is the next thing to go - the file is
+; produced in order and could be written as it is made, which would leave this needing three
+; blocks rather than eighteen kilobytes.
 ;
 ; That ends at 0xF070, with the Stack coming down from 0xFFFF above it - nearly four
 ; kilobytes, against the tens of bytes of CALL frames this ever nests.
@@ -55,9 +64,9 @@
 ScratchLabIndex:
   0x40 0x00
 ScratchLabArena:
-  0x4C 0x00
+  0x58 0x00
 ScratchImage:
-  0x6C 0x00
+  0x98 0x00
 ScratchVecNames:
   0xE0 0x00
 ScratchSrcStack: