diff options
author | Ben Hutchings <ben@decadent.org.uk> | 2011-08-24 05:40:10 +0100 |
---|---|---|
committer | Ben Hutchings <ben@decadent.org.uk> | 2011-12-16 05:42:10 +0000 |
commit | 1f2fd14997b38b8aeeaae5de8f81c3a04958971e (patch) | |
tree | 1cd60f180c20f7d973ed8b1ce5a343761a56fb23 /keyspan_pda | |
parent | 5cbed982380ae9e6c79a7d325cd1102828ec316e (diff) |
keyspan_pda: Fix parse error with as31 version 2.3.1
keyspan_pda.S has an out-of-range decimal constant that looks
like it was really meant to be a binary constant. Comparing
with the binary, it appears that as31 used to treat this as 0,
so change the source to use 0 and add a comment on this.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'keyspan_pda')
-rw-r--r-- | keyspan_pda/keyspan_pda.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/keyspan_pda/keyspan_pda.S b/keyspan_pda/keyspan_pda.S index 418fe69a..602bcce5 100644 --- a/keyspan_pda/keyspan_pda.S +++ b/keyspan_pda/keyspan_pda.S @@ -285,7 +285,12 @@ clear_rx_ring_loop: mov dptr,OUTC movx @dptr, a ;; setup the serial port. 9600 8N1. - mov a,#01010011 ; mode 1, enable rx, clear int + ;; Original source had: + ;;mov a,#01010011 ; mode 1, enable rx, clear int + ;; This was presumably meant to be a binary constant, but it's + ;; really decimal and out of 8-bit range. as31 used to treat + ;; it as 0 and that seems to have worked, so carry on with 0. + mov a,#0 mov SCON, a ;; using timer2, in 16-bit baud-rate-generator mode ;; (xtal 12MHz, internal fosc 24MHz) |