doc: document 32-bit-only API calls

As long as we have a pretence of an ABI we should at least keep it
updated.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

diff --git a/doc/comboot.txt b/doc/comboot.txt
index 7950688..b6c947a 100644 (file)
--- a/doc/comboot.txt
+++ b/doc/comboot.txt
@@ -979,3 +979,17 @@ AX=0024h [3.80] Cleanup, shuffle and boot, raw version
        with read/write data segments, matching the respective code
        segment.  For mode 0, B=0 and the limits will be 64K, for mode
        1, B=1 and the limits will be 4 GB.
+
+
+       ++++ 32-BIT ONLY API CALLS ++++
+
+void *pm_cs->lmalloc(size_t)
+
+       Allocate a buffer in low memory (below 1 MB).
+
+
+void pm_cs->lfree(void *)
+
+       Free a buffer allocated with pm_cs->lmalloc().
+
+