document new features and bugs

1 files changed, 22 insertions, 4 deletions

diff --git a/README.txt b/README.txt
index e0a42b7..52bf581 100644
--- a/README.txt
+++ b/README.txt
@@ -120,11 +120,15 @@ arcade game).
 
 BUGS! At least these:
 
-- This may just be good luck, but I played a game to 500 million and
-  Li Yuen never extorted money.
+- When entering bank deposit/withdrawal amounts, numbers greater than
+  2**32-1 (2,147,483,647) result in the wrong amount being transferred,
+  due to get_num() returning a signed long (which it does in order to
+  support pressing Enter for 'all', which returns -1). Fixing this will
+  require changes to both get_num() and all the code that calls it.
 
 - After a battle, the prices don't get reset (or, not always?) when
-  entering the new port (confirm?).
+  entering the new port (confirm? This was reported but I haven't
+  seen it).
 
 - The "negative interest" bug is currently missing, due to using
   unsigned values for debt. Plus, it's cheating. I'm undecided
@@ -205,7 +209,15 @@ Deliberate differences between the Apple II and Atari ports:
 
 10. Apple uses floating point, no practical limit on cash/bank/debt.
     Atari currently uses 32-bit unsigned longs for cash and debt,
-    though the bank is now floating point.
+    though the bank is now floating point. This leads to these gameplay
+    changes:
+
+    - If you try to make a sale, take out a loan, or withdraw from the bank
+      an amount that would put you over 4.3 billion cash, you get a
+      message "you cannot carry so much cash", and the transaction is
+      aborted.
+
+    - If your debt goes above 2 billion, you die and the game is over.
 
 11. On Apple, price of General Cargo isn't always an integer (e.g. 6.5).
 
@@ -213,6 +225,12 @@ Deliberate differences between the Apple II and Atari ports:
     at least 2 sinking speeds. On Atari, it's one character (8 scanlines)
     at a time, and the speed is always the same.
 
+13. When entering numeric amounts, the Atari Shift-Delete key works as
+    expected.
+
+14. When entering numeric amounts, pressing K or M inserts 3 or 6 zeroes.
+    This means you can type e.g. 100,000 as 100K, and 10,000,000 as 10M.
+
 
 Differences between the Apple II original and Linux port: