diff --git a/benchmarks.larceny/results.Larceny-r6rs b/benchmarks.larceny/results.Larceny-r6rs
index f866edd..a42bbc6 100644
--- a/benchmarks.larceny/results.Larceny-r6rs
+++ b/benchmarks.larceny/results.Larceny-r6rs
@@ -6502,3 +6502,931 @@ Words allocated: 400031744
 Words reclaimed: 0
 Elapsed time...: 1828 ms (User: 1805 ms; System: 11 ms)
 Elapsed GC time: 547 ms (CPU: 544 in 1526 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Fri Jun 15 12:45:32 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing gcbench under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> The garbage collector should touch about 32 megabytes of heap storage.
+The use of more or less memory will skew the results.
+
+Garbage Collector Test
+ Stretching memory with a binary tree of depth 18
+ Total memory available= ???????? bytes  Free memory= ???????? bytes
+GCBench: Main
+ Creating a long-lived binary tree of depth 16
+ Creating a long-lived array of 524284 inexact reals
+ Total memory available= ???????? bytes  Free memory= ???????? bytes
+Creating 33824 trees of depth 4
+GCBench: Top down construction
+GCBench: Bottom up construction
+Creating 8256 trees of depth 6
+GCBench: Top down construction
+GCBench: Bottom up construction
+Creating 2052 trees of depth 8
+GCBench: Top down construction
+GCBench: Bottom up construction
+Creating 512 trees of depth 10
+GCBench: Top down construction
+GCBench: Bottom up construction
+Creating 128 trees of depth 12
+GCBench: Top down construction
+GCBench: Bottom up construction
+Creating 32 trees of depth 14
+GCBench: Top down construction
+GCBench: Bottom up construction
+Creating 8 trees of depth 16
+GCBench: Top down construction
+GCBench: Bottom up construction
+ Total memory available= ???????? bytes  Free memory= ???????? bytes
+Words allocated: 94868008
+Words reclaimed: 0
+Elapsed time...: 1886 ms (User: 1592 ms; System: 255 ms)
+Elapsed GC time: 1153 ms (CPU: 1127 in 360 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Fri Jun 15 12:46:21 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing nucleic under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+Words allocated: 151779700
+Words reclaimed: 0
+Elapsed time...: 4614 ms (User: 3117 ms; System: 1445 ms)
+Elapsed GC time: 237 ms (CPU: 260 in 579 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Fri Jun 15 13:02:44 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing mazefun under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+Words allocated: 47447786
+Words reclaimed: 0
+Elapsed time...: 1313 ms (User: 1294 ms; System: 11 ms)
+Elapsed GC time: 79 ms (CPU: 73 in 181 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Fri Jun 15 13:03:49 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing pnpoly under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+Words allocated: 72351714
+Words reclaimed: 0
+Elapsed time...: 1498 ms (User: 1487 ms; System: 6 ms)
+Elapsed GC time: 100 ms (CPU: 103 in 276 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Fri Jun 15 13:07:16 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing sum1 under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+Words allocated: 6553342
+Words reclaimed: 0
+Elapsed time...: 3539 ms (User: 2070 ms; System: 1416 ms)
+Elapsed GC time: 17 ms (CPU: 9 in 25 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:27:44 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 1 ms (User: 0 ms; System: 1 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:33:16 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+hereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereherehereher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+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:33:33 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+herehereWords allocated: 0
+Words reclaimed: 0
+Elapsed time...: 1 ms (User: 1 ms; System: 0 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:35:37 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+before 0
+before 3
+before 3
+before 4
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 1 ms (User: 1 ms; System: 1 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:35:50 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+before 0
+after 3
+before 3
+after 4
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 1 ms (User: 1 ms; System: 1 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:38:29 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+bmax=3.0
+before 0
+after 3
+bmax=1.5
+before 3
+after 4
+bmax=0.0
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 2 ms (User: 1 ms; System: 1 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:40:11 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+
+Error: Unexpected end of file encountered during read on port #<INPUT PORT simplex.scm>
+Entering debugger; type "?" for help.
+debug> #<EOF>
+
+> 
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:40:24 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+bmax1=1.0
+bmax=3.0
+before 0
+after 3
+bmax1=1.0
+bmax=1.5
+before 3
+after 4
+bmax1=0.0
+bmax=0.0
+bmax1=-0.8333333333333333
+bmax1=-0.95
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 6 ms (User: 4 ms; System: 3 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:41:35 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+bmax1=1.0
+bmax2=2.0
+bmax2=3.0
+bmax=3.0
+before 0
+after 3
+bmax1=1.0
+bmax2=1.5
+bmax=1.5
+before 3
+after 4
+bmax1=0.0
+bmax=0.0
+bmax1=-0.8333333333333333
+bmax2=0.33333333333333337
+bmax1=-0.95
+bmax2=-0.05000000000000001
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 13 ms (User: 7 ms; System: 5 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:43:47 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+bmax1=1.0
+l1=#(1 2 3 4) k=1
+bmax2=2.0
+l1=#(1 2 3 4) k=3
+bmax2=3.0
+bmax=3.0
+before 0
+after 3
+bmax1=1.0
+l1=#(1 2 3 4) k=2
+bmax2=1.5
+bmax=1.5
+before 3
+after 4
+bmax1=0.0
+bmax=0.0
+bmax1=-0.8333333333333333
+l1=#(1 2 4 4) k=1
+bmax2=0.33333333333333337
+bmax1=-0.95
+l1=#(1 2 4 4) k=1
+bmax2=-0.05000000000000001
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 14 ms (User: 8 ms; System: 5 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:45:00 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+bmax1=1.0
+l1=#(1 2 3 4) k=1 mm=5
+bmax2=2.0
+l1=#(1 2 3 4) k=3 mm=5
+bmax2=3.0
+bmax=3.0
+before 0
+after 3
+bmax1=1.0
+l1=#(1 2 3 4) k=2 mm=5
+bmax2=1.5
+bmax=1.5
+before 3
+after 4
+bmax1=0.0
+bmax=0.0
+bmax1=-0.8333333333333333
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=0.33333333333333337
+bmax1=-0.95
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=-0.05000000000000001
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 14 ms (User: 8 ms; System: 5 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:47:03 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+ms[5,0]=-9.5
+ms[5,1]=1.0
+ms[5,2]=2.0
+ms[5,3]=0.0
+ms[5,4]=3.0
+bmax1=1.0
+l1=#(1 2 3 4) k=1 mm=5
+bmax2=2.0
+l1=#(1 2 3 4) k=3 mm=5
+bmax2=3.0
+bmax=3.0
+before 0
+after 3
+ms[0,4]=0.25
+ms[0,0]=-0.125
+ms[0,1]=1.0
+ms[0,2]=1.25
+ms[0,3]=2.75
+ms[1,4]=-0.0
+ms[1,0]=740.0
+ms[1,1]=-1.0
+ms[1,2]=0.0
+ms[1,3]=-2.0
+ms[2,4]=-3.5
+ms[2,0]=1.75
+ms[2,1]=0.0
+ms[2,2]=-5.5
+ms[2,3]=3.5
+ms[4,4]=0.5
+ms[4,0]=8.75
+ms[4,1]=-1.0
+ms[4,2]=-0.5
+ms[4,3]=-1.5
+ms[5,4]=-1.5
+ms[5,0]=-8.75
+ms[5,1]=1.0
+ms[5,2]=0.5
+ms[5,3]=1.5
+ms[3,0]=0.25
+ms[3,1]=0.0
+ms[3,2]=-0.5
+ms[3,3]=0.5
+ms[3,4]=-0.5
+ms[5,4]=-0.5
+ms[0,4]=-0.25
+ms[1,4]=0.0
+ms[2,4]=3.5
+ms[3,4]=0.5
+ms[4,4]=-0.5
+ms[5,4]=0.5
+bmax1=1.0
+l1=#(1 2 3 4) k=2 mm=5
+bmax2=1.5
+bmax=1.5
+before 3
+after 4
+ms[0,3]=-1.8333333333333333
+ms[0,0]=15.916666666666664
+ms[0,1]=-0.8333333333333333
+ms[0,2]=0.33333333333333337
+ms[0,4]=-1.1666666666666665
+ms[1,3]=1.3333333333333333
+ms[1,0]=728.3333333333334
+ms[1,1]=0.33333333333333326
+ms[1,2]=0.6666666666666666
+ms[1,4]=0.6666666666666666
+ms[2,3]=-2.333333333333333
+ms[2,0]=22.166666666666664
+ms[2,1]=-2.333333333333333
+ms[2,2]=-6.666666666666666
+ms[2,4]=2.3333333333333335
+ms[3,3]=-0.3333333333333333
+ms[3,0]=3.1666666666666665
+ms[3,1]=-0.3333333333333333
+ms[3,2]=-0.6666666666666666
+ms[3,4]=0.33333333333333337
+ms[5,3]=-1.0
+ms[5,0]=0.0
+ms[5,1]=0.0
+ms[5,2]=0.0
+ms[5,4]=0.0
+ms[4,0]=5.833333333333333
+ms[4,1]=-0.6666666666666666
+ms[4,2]=-0.3333333333333333
+ms[4,4]=-0.3333333333333333
+ms[4,3]=-0.6666666666666666
+ms[5,3]=0.0
+ms[0,3]=1.8333333333333333
+ms[1,3]=-1.3333333333333333
+ms[2,3]=2.333333333333333
+ms[3,3]=0.3333333333333333
+ms[4,3]=0.6666666666666666
+ms[5,3]=0.0
+bmax1=0.0
+bmax=0.0
+bmax1=-0.8333333333333333
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=0.33333333333333337
+ms[0,2]=-0.05000000000000001
+ms[0,0]=17.025
+ms[0,1]=-0.95
+ms[0,3]=1.95
+ms[0,4]=-1.0499999999999998
+ms[1,2]=-0.1
+ms[1,0]=730.5500000000001
+ms[1,1]=0.09999999999999995
+ms[1,3]=-1.0999999999999999
+ms[1,4]=0.9
+ms[3,2]=0.1
+ms[3,0]=0.9500000000000002
+ms[3,1]=-0.1
+ms[3,3]=0.1
+ms[3,4]=0.1
+ms[4,2]=0.05
+ms[4,0]=4.725
+ms[4,1]=-0.5499999999999999
+ms[4,3]=0.5499999999999999
+ms[4,4]=-0.45
+ms[2,0]=3.325
+ms[2,1]=-0.35000000000000003
+ms[2,3]=0.35000000000000003
+ms[2,4]=0.3500000000000001
+ms[2,2]=-0.15000000000000002
+bmax1=-0.95
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=-0.05000000000000001
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 166 ms (User: 91 ms; System: 62 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:52:12 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+ms[5,0]=-9.5
+ms[5,1]=1.0
+ms[5,2]=2.0
+ms[5,3]=0.0
+ms[5,4]=3.0
+bmax1=1.0
+l1=#(1 2 3 4) k=1 mm=5
+bmax2=2.0
+l1=#(1 2 3 4) k=3 mm=5
+bmax2=3.0
+bmax=3.0
+before 0
+after 3
+piv=-0.5
+ms[0,4]=0.25
+ms[0,0]=-0.125
+ms[0,1]=1.0
+ms[0,2]=1.25
+ms[0,3]=2.75
+piv=-0.5
+ms[1,4]=-0.0
+ms[1,0]=740.0
+ms[1,1]=-1.0
+ms[1,2]=0.0
+ms[1,3]=-2.0
+piv=-0.5
+ms[2,4]=-3.5
+ms[2,0]=1.75
+ms[2,1]=0.0
+ms[2,2]=-5.5
+ms[2,3]=3.5
+piv=-0.5
+ms[4,4]=0.5
+ms[4,0]=8.75
+ms[4,1]=-1.0
+ms[4,2]=-0.5
+ms[4,3]=-1.5
+piv=-0.5
+ms[5,4]=-1.5
+ms[5,0]=-8.75
+ms[5,1]=1.0
+ms[5,2]=0.5
+ms[5,3]=1.5
+ms[3,0]=0.25
+ms[3,1]=0.0
+ms[3,2]=-0.5
+ms[3,3]=0.5
+ms[3,4]=-0.5
+ms[5,4]=-0.5
+ms[0,4]=-0.25
+ms[1,4]=0.0
+ms[2,4]=3.5
+ms[3,4]=0.5
+ms[4,4]=-0.5
+ms[5,4]=0.5
+bmax1=1.0
+l1=#(1 2 3 4) k=2 mm=5
+bmax2=1.5
+bmax=1.5
+before 3
+after 4
+piv=-0.6666666666666666
+ms[0,3]=-1.8333333333333333
+ms[0,0]=15.916666666666664
+ms[0,1]=-0.8333333333333333
+ms[0,2]=0.33333333333333337
+ms[0,4]=-1.1666666666666665
+piv=-0.6666666666666666
+ms[1,3]=1.3333333333333333
+ms[1,0]=728.3333333333334
+ms[1,1]=0.33333333333333326
+ms[1,2]=0.6666666666666666
+ms[1,4]=0.6666666666666666
+piv=-0.6666666666666666
+ms[2,3]=-2.333333333333333
+ms[2,0]=22.166666666666664
+ms[2,1]=-2.333333333333333
+ms[2,2]=-6.666666666666666
+ms[2,4]=2.3333333333333335
+piv=-0.6666666666666666
+ms[3,3]=-0.3333333333333333
+ms[3,0]=3.1666666666666665
+ms[3,1]=-0.3333333333333333
+ms[3,2]=-0.6666666666666666
+ms[3,4]=0.33333333333333337
+piv=-0.6666666666666666
+ms[5,3]=-1.0
+ms[5,0]=0.0
+ms[5,1]=0.0
+ms[5,2]=0.0
+ms[5,4]=0.0
+ms[4,0]=5.833333333333333
+ms[4,1]=-0.6666666666666666
+ms[4,2]=-0.3333333333333333
+ms[4,4]=-0.3333333333333333
+ms[4,3]=-0.6666666666666666
+ms[5,3]=0.0
+ms[0,3]=1.8333333333333333
+ms[1,3]=-1.3333333333333333
+ms[2,3]=2.333333333333333
+ms[3,3]=0.3333333333333333
+ms[4,3]=0.6666666666666666
+ms[5,3]=0.0
+bmax1=0.0
+bmax=0.0
+bmax1=-0.8333333333333333
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=0.33333333333333337
+piv=-0.15000000000000002
+ms[0,2]=-0.05000000000000001
+ms[0,0]=17.025
+ms[0,1]=-0.95
+ms[0,3]=1.95
+ms[0,4]=-1.0499999999999998
+piv=-0.15000000000000002
+ms[1,2]=-0.1
+ms[1,0]=730.5500000000001
+ms[1,1]=0.09999999999999995
+ms[1,3]=-1.0999999999999999
+ms[1,4]=0.9
+piv=-0.15000000000000002
+ms[3,2]=0.1
+ms[3,0]=0.9500000000000002
+ms[3,1]=-0.1
+ms[3,3]=0.1
+ms[3,4]=0.1
+piv=-0.15000000000000002
+ms[4,2]=0.05
+ms[4,0]=4.725
+ms[4,1]=-0.5499999999999999
+ms[4,3]=0.5499999999999999
+ms[4,4]=-0.45
+ms[2,0]=3.325
+ms[2,1]=-0.35000000000000003
+ms[2,3]=0.35000000000000003
+ms[2,4]=0.3500000000000001
+ms[2,2]=-0.15000000000000002
+bmax1=-0.95
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=-0.05000000000000001
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 187 ms (User: 106 ms; System: 72 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:53:29 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:53:42 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+ms[5,0]=-9.5
+ms[5,1]=1.0
+ms[5,2]=2.0
+ms[5,3]=0.0
+ms[5,4]=3.0
+bmax1=1.0
+l1=#(1 2 3 4) k=1 mm=5
+bmax2=2.0
+l1=#(1 2 3 4) k=3 mm=5
+bmax2=3.0
+bmax=3.0
+before 0
+after 3
+piv^-1=-2.0
+piv=-0.5
+ms[0,4]=0.25
+ms[0,0]=-0.125
+ms[0,1]=1.0
+ms[0,2]=1.25
+ms[0,3]=2.75
+piv=-0.5
+ms[1,4]=-0.0
+ms[1,0]=740.0
+ms[1,1]=-1.0
+ms[1,2]=0.0
+ms[1,3]=-2.0
+piv=-0.5
+ms[2,4]=-3.5
+ms[2,0]=1.75
+ms[2,1]=0.0
+ms[2,2]=-5.5
+ms[2,3]=3.5
+piv=-0.5
+ms[4,4]=0.5
+ms[4,0]=8.75
+ms[4,1]=-1.0
+ms[4,2]=-0.5
+ms[4,3]=-1.5
+piv=-0.5
+ms[5,4]=-1.5
+ms[5,0]=-8.75
+ms[5,1]=1.0
+ms[5,2]=0.5
+ms[5,3]=1.5
+ms[3,0]=0.25
+ms[3,1]=0.0
+ms[3,2]=-0.5
+ms[3,3]=0.5
+ms[3,4]=-0.5
+ms[5,4]=-0.5
+ms[0,4]=-0.25
+ms[1,4]=0.0
+ms[2,4]=3.5
+ms[3,4]=0.5
+ms[4,4]=-0.5
+ms[5,4]=0.5
+bmax1=1.0
+l1=#(1 2 3 4) k=2 mm=5
+bmax2=1.5
+bmax=1.5
+before 3
+after 4
+piv^-1=-1.5
+piv=-0.6666666666666666
+ms[0,3]=-1.8333333333333333
+ms[0,0]=15.916666666666664
+ms[0,1]=-0.8333333333333333
+ms[0,2]=0.33333333333333337
+ms[0,4]=-1.1666666666666665
+piv=-0.6666666666666666
+ms[1,3]=1.3333333333333333
+ms[1,0]=728.3333333333334
+ms[1,1]=0.33333333333333326
+ms[1,2]=0.6666666666666666
+ms[1,4]=0.6666666666666666
+piv=-0.6666666666666666
+ms[2,3]=-2.333333333333333
+ms[2,0]=22.166666666666664
+ms[2,1]=-2.333333333333333
+ms[2,2]=-6.666666666666666
+ms[2,4]=2.3333333333333335
+piv=-0.6666666666666666
+ms[3,3]=-0.3333333333333333
+ms[3,0]=3.1666666666666665
+ms[3,1]=-0.3333333333333333
+ms[3,2]=-0.6666666666666666
+ms[3,4]=0.33333333333333337
+piv=-0.6666666666666666
+ms[5,3]=-1.0
+ms[5,0]=0.0
+ms[5,1]=0.0
+ms[5,2]=0.0
+ms[5,4]=0.0
+ms[4,0]=5.833333333333333
+ms[4,1]=-0.6666666666666666
+ms[4,2]=-0.3333333333333333
+ms[4,4]=-0.3333333333333333
+ms[4,3]=-0.6666666666666666
+ms[5,3]=0.0
+ms[0,3]=1.8333333333333333
+ms[1,3]=-1.3333333333333333
+ms[2,3]=2.333333333333333
+ms[3,3]=0.3333333333333333
+ms[4,3]=0.6666666666666666
+ms[5,3]=0.0
+bmax1=0.0
+bmax=0.0
+bmax1=-0.8333333333333333
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=0.33333333333333337
+piv^-1=-6.666666666666666
+piv=-0.15000000000000002
+ms[0,2]=-0.05000000000000001
+ms[0,0]=17.025
+ms[0,1]=-0.95
+ms[0,3]=1.95
+ms[0,4]=-1.0499999999999998
+piv=-0.15000000000000002
+ms[1,2]=-0.1
+ms[1,0]=730.5500000000001
+ms[1,1]=0.09999999999999995
+ms[1,3]=-1.0999999999999999
+ms[1,4]=0.9
+piv=-0.15000000000000002
+ms[3,2]=0.1
+ms[3,0]=0.9500000000000002
+ms[3,1]=-0.1
+ms[3,3]=0.1
+ms[3,4]=0.1
+piv=-0.15000000000000002
+ms[4,2]=0.05
+ms[4,0]=4.725
+ms[4,1]=-0.5499999999999999
+ms[4,3]=0.5499999999999999
+ms[4,4]=-0.45
+ms[2,0]=3.325
+ms[2,1]=-0.35000000000000003
+ms[2,3]=0.35000000000000003
+ms[2,4]=0.3500000000000001
+ms[2,2]=-0.15000000000000002
+bmax1=-0.95
+l1=#(1 2 4 4) k=1 mm=0
+bmax2=-0.05000000000000001
+Words allocated: 0
+Words reclaimed: 0
+Elapsed time...: 198 ms (User: 109 ms; System: 75 ms)
+Elapsed GC time: 0 ms (CPU: 0 in 0 collections.)
+
+****************************
+Benchmarking Larceny-r6rs on Sat Jun 16 09:56:33 AST 2007 under Darwin Vesuvius.local 8.9.1 Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386 i386 i386
+
+Testing simplex under Larceny-r6rs
+Compiling...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+> 
+Running...
+Larceny v0.93 "Deviated Prevert" (Nov 10 2006 04:27:45, precise:BSD Unix:unified)
+
+
+> 
+Words allocated: 126088226
+Words reclaimed: 0
+Elapsed time...: 42817 ms (User: 23073 ms; System: 19390 ms)
+Elapsed GC time: 196 ms (CPU: 198 in 481 collections.)
diff --git a/benchmarks/BUGS b/benchmarks/BUGS
index 496a4c5..f264169 100644
--- a/benchmarks/BUGS
+++ b/benchmarks/BUGS
@@ -62,3 +62,25 @@ AFTER $fl+, $fl-, $fl*, $fl/:
       1890 ms elapsed real time
       1600164776 bytes allocated
   
+AFTER $fl=, $fl<, $fl<=, $fl>, $fl>=
+  running stats for fibfp:
+      343 collections
+      1984 ms elapsed cpu time
+      1999 ms elapsed real time
+      1433318512 bytes allocated
+  running stats for mbrot:
+      530 collections
+      1856 ms elapsed cpu time
+      1872 ms elapsed real time
+      2215766432 bytes allocated
+  running stats for pnpoly:
+      81 collections
+      1404 ms elapsed cpu time
+      1413 ms elapsed real time
+      335204824 bytes allocated
+  running stats for sumfp:
+      382 collections
+      1496 ms elapsed cpu time
+      1506 ms elapsed real time
+      1600164816 bytes allocated
+  
diff --git a/benchmarks/bench.ss b/benchmarks/bench.ss
index b785a86..25d4ffa 100755
--- a/benchmarks/bench.ss
+++ b/benchmarks/bench.ss
@@ -1,11 +1,14 @@
 #!/usr/bin/env ikarus --r6rs-script
 
-(import
-  (ikarus)
-  #;(r6rs-benchmarks))
+(import (ikarus))
 
 (define (run name)
-  (eval '(main) (environment (list 'r6rs-benchmarks name))))
+  (let ([proc (time-it (format "compile-~a" name) 
+                (lambda ()
+                  (eval 'main 
+                    (environment
+                      (list 'r6rs-benchmarks name)))))])
+    (proc)))
 
 (apply 
   (case-lambda
diff --git a/benchmarks/r6rs-benchmarks.ss b/benchmarks/r6rs-benchmarks.ss
index 7ff7536..a3846ef 100644
--- a/benchmarks/r6rs-benchmarks.ss
+++ b/benchmarks/r6rs-benchmarks.ss
@@ -42,6 +42,7 @@
      puzzle-iters
      quicksort-iters
      sboyer-iters
+     simplex-iters
      sum-iters
      sum1-iters
      string-iters
diff --git a/benchmarks/r6rs-benchmarks/simplex.ss b/benchmarks/r6rs-benchmarks/simplex.ss
index dffeb19..0d23535 100644
--- a/benchmarks/r6rs-benchmarks/simplex.ss
+++ b/benchmarks/r6rs-benchmarks/simplex.ss
@@ -165,7 +165,7 @@
          (let loop ()
           (simp1 0 #f)
           (cond
-           ((f(run))lpositive? bmax)
+           ((flpositive? bmax)
             (simp2)
             (cond ((zero? ip) #t)
                   (else (simp3 #f)
diff --git a/benchmarks/r6rs-benchmarks/sum1.ss b/benchmarks/r6rs-benchmarks/sum1.ss
index cddf722..40e4e74 100644
--- a/benchmarks/r6rs-benchmarks/sum1.ss
+++ b/benchmarks/r6rs-benchmarks/sum1.ss
@@ -16,7 +16,7 @@
     (sumport port 0.0))
   
   (define (go)
-    (set! inport (open-input-file "r6rs-benchmarks/rn100"))
+    (set! inport (open-input-file "rn100"))
     (let ((result (sum inport)))
       (close-input-port inport)
       result))
diff --git a/src/ikarus.boot b/src/ikarus.boot
index 68d252c..4fd9111 100644
Binary files a/src/ikarus.boot and b/src/ikarus.boot differ
diff --git a/src/ikarus.numerics.ss b/src/ikarus.numerics.ss
index e414cf6..03b7c50 100644
--- a/src/ikarus.numerics.ss
+++ b/src/ikarus.numerics.ss
@@ -8,12 +8,12 @@
 (library (ikarus flonums)
   (export $flonum->exact $flonum-signed-biased-exponent flonum-parts
           inexact->exact $flonum-rational? $flonum-integer? $flzero?
-          $flnegative?)
+          $flnegative? flpositive? flabs)
   (import 
     (ikarus system $bytevectors)
     (except (ikarus system $flonums) $flonum-signed-biased-exponent
             $flonum-rational? $flonum-integer?)
-    (except (ikarus) inexact->exact))
+    (except (ikarus) inexact->exact flpositive? flabs))
   
   (define (flonum-bytes f)
     (unless (flonum? f) 
@@ -108,7 +108,18 @@
       [(or (fixnum? x) (ratnum? x) (bignum? x)) x]
       [else
        (error 'inexact->exact "~s is not an inexact number" x)]))
+
+  (define (flpositive? x)
+    (if (flonum? x) 
+        ($fl> x 0.0)
+        (error 'flpositive? "~s is not a flonum" x)))
   
+  (define (flabs x)
+    (if (flonum? x) 
+        (if (flnegative? x) 
+            (fl* x -1.0)
+            x)
+        (error 'flabs "~s is not a flonum" x)))
   )
 
 
@@ -1317,7 +1328,7 @@
              (f (fl/ ac (car rest)) (cdr rest))))]
       [(x) 
        (if (flonum? x) 
-           x
+           (fl/ 1.0 x)
            (error 'fl/ "~s is not a flonum" x))])) 
 
   (flcmp flfl= flfx= fxfl= flbn= bnfl= $fl=)
diff --git a/src/makefile.ss b/src/makefile.ss
index 28cced3..5657574 100755
--- a/src/makefile.ss
+++ b/src/makefile.ss
@@ -381,6 +381,8 @@
     [flsqrt                  i rfl]
     [flzero?                 i rfl]
     [flnegative?             i rfl]
+    [flpositive?             i rfl]
+    [flabs                   i rfl]
     [fixnum->string          i]
     [string->flonum          i]
     [-                       i r]