diff --git a/codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AugmentableAssignmentAsmGen.kt b/codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AugmentableAssignmentAsmGen.kt
index f0e4fa047..5113e58fd 100644
--- a/codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AugmentableAssignmentAsmGen.kt
+++ b/codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AugmentableAssignmentAsmGen.kt
@@ -422,7 +422,8 @@ internal class AugmentableAssignmentAsmGen(private val program: PtProgram,
                                     ldy  #>$tempvar
                                     sta  P8ZP_SCRATCH_W1
                                     sty  P8ZP_SCRATCH_W1+1
-                                    ply
+                                    pla
+                                    tay
                                     txa
                                     jsr  floats.copy_float""")   // copy from array into float temp var, clobbers A,Y
                             }
diff --git a/docs/source/todo.rst b/docs/source/todo.rst
index 94458fa1a..16f2208e1 100644
--- a/docs/source/todo.rst
+++ b/docs/source/todo.rst
@@ -1,6 +1,13 @@
 TODO
 ====
 
+- examples/bench8/pow.p8: result value 0 is borked, fix array[j] += testpow(2.5/(i+1.0), j) assignment in 6502 codegen
+- examples/bench8/crc16 produces wrong answer (expected ffd0 in 4.6 sec)
+- examples/bench8/crc32 produces wrong answer (expected e1fa84c6  in 40.1 sec)
+
+- add bench8/sieve and sieve-bit ports
+
+
 - prefix prog8 subroutines with p8s_ instead of p8_ to not let them clash with variables in the asm??
 - [on branch: shortcircuit] investigate McCarthy evaluation again? this may also reduce code size perhaps for things like if a>4 or a<2 ....
 - IR: reduce the number of branch instructions such as BEQ, BEQR, etc (gradually), replace with CMP(I) + status branch instruction
diff --git a/examples/bench8/crc16.p8 b/examples/bench8/crc16.p8
index c9200fd38..389da80d8 100644
--- a/examples/bench8/crc16.p8
+++ b/examples/bench8/crc16.p8
@@ -18,13 +18,13 @@ main {
     }
 
     sub start() {
-        txt.print("calculating...")
+        txt.print("calculating (expecting $ffd0)...")
         cbm.SETTIM(0,0,0)
         uword crc = crc16($e000, $2000)
-        txt.print_uwhex(crc, true)      ; should be $ffd0
+        txt.print_uwhex(crc, true)
         txt.nl()
         txt.print_uw(cbm.RDTIM16())
         txt.print(" jiffies")
-        sys.wait(100)
+        sys.wait(300)
     }
 }
diff --git a/examples/bench8/crc32.p8 b/examples/bench8/crc32.p8
index b231a6e91..f83f571ac 100644
--- a/examples/bench8/crc32.p8
+++ b/examples/bench8/crc32.p8
@@ -29,7 +29,7 @@ main {
     }
 
     sub start() {
-        txt.print("calculating...")
+        txt.print("calculating (expecting $e1fa84c6)...\n")
         cbm.SETTIM(0,0,0)
         crc32($e000, $2000)
         txt.print_uwhex(cx16.r0, true)
@@ -37,6 +37,6 @@ main {
         txt.nl()
         txt.print_uw(cbm.RDTIM16())
         txt.print(" jiffies")
-        sys.wait(100)
+        sys.wait(300)
     }
 }
diff --git a/examples/bench8/crc8.p8 b/examples/bench8/crc8.p8
index 600851c04..58e18c4d5 100644
--- a/examples/bench8/crc8.p8
+++ b/examples/bench8/crc8.p8
@@ -18,13 +18,13 @@ main {
    }
 
     sub start() {
-        txt.print("calculating...")
+        txt.print("calculating (expecting $a2)...")
         cbm.SETTIM(0,0,0)
         ubyte crc = crc8($e000, $2000)
-        txt.print_ubhex(crc, true)      ; should be $a2
+        txt.print_ubhex(crc, true)
         txt.nl()
         txt.print_uw(cbm.RDTIM16())
         txt.print(" jiffies")
-        sys.wait(100)
+        sys.wait(300)
     }
 }
diff --git a/examples/bench8/pow.p8 b/examples/bench8/pow.p8
index 4c677d582..995f7ecc5 100644
--- a/examples/bench8/pow.p8
+++ b/examples/bench8/pow.p8
@@ -18,10 +18,10 @@ main {
     }
 
     sub start() {
-        txt.print("calculating...")
-        cbm.SETTIM(0,0,0)
+        txt.print("calculating (expecting 3.614007e+12)... ")
+        ; cbm.SETTIM(0,0,0)
 
-        float res
+        float res=0.0
         uword i
         ubyte j
         for i in 0 to N_ITER-1 {
@@ -35,8 +35,8 @@ main {
 
         floats.print_f(res)
         txt.nl()
-        txt.print_uw(cbm.RDTIM16())
-        txt.print(" jiffies")
-        sys.wait(100)
+;        txt.print_uw(cbm.RDTIM16())
+;        txt.print(" jiffies")
+        sys.wait(300)
     }
 }