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-rw-r--r--sim/m68hc11/Makefile.in10
1 files changed, 8 insertions, 2 deletions
diff --git a/sim/m68hc11/Makefile.in b/sim/m68hc11/Makefile.in
index a054a329c7d..604c3a73a6a 100644
--- a/sim/m68hc11/Makefile.in
+++ b/sim/m68hc11/Makefile.in
@@ -35,9 +35,15 @@ SIM_OBJS = $(M68HC11_OBJS) \
$(SIM_EXTRA_OBJS)
SIM_PROFILE= -DPROFILE=1 -DWITH_PROFILE=-1
-SIM_EXTRA_CFLAGS = -DWITH_TARGET_WORD_BITSIZE=16 \
+# We must use 32-bit addresses to support memory bank switching.
+# The WORD_BITSIZE is normally 16 but must be switched (temporarily)
+# to 32 to avoid a bug in the sim-common which uses 'unsigned_word'
+# instead of 'address_word' in some places (the result is a truncation
+# of the 32-bit address to 16-bit; and this breaks the simulator).
+SIM_EXTRA_CFLAGS = -DWITH_TARGET_WORD_BITSIZE=32 \
-DWITH_TARGET_CELL_BITSIZE=32 \
- -DWITH_TARGET_WORD_MSB=15
+ -DWITH_TARGET_ADDRESS_BITSIZE=32 \
+ -DWITH_TARGET_WORD_MSB=31
SIM_EXTRA_CLEAN = clean-extra
SIM_EXTRA_OBJS = @m68hc11_extra_objs@