| Bit and flag manipulation
|
| BitManip
| Copying, clearing, setting and rotating bits
|
| SwapVals
| Swapping data without temporary variable
|
| FlagManip
| Setting and clearing flags
|
| Arithmetic
|
| Decrement
| 16-bit, 24-bit, 32-bit, etc. decrement
|
| Counting
| Unusual counting
|
| Conversion and calculations
|
| BCD
| Converting 8-bit Binary Coded Decimal
|
| SqRoot
| Calculate integer Square Root
|
| 60to100
| Multiply by 1.66 to convert 1/60ths to 1/100ths
|
| Times60
| Routines to multiply by 60 and 100
|
| Divide60
| Routines to divide by multiples of 60 and 100
|
| Denormal
| Denormalising floating point numbers
|
| 6502Divide
| Routines to divide by various constants
|
| Stack manipulation
|
| StackWS
| Using stack for workspace
|
| StackWS.src
(L)
| Demo of using stack for workspace
|
| StackMem
| Subroutines to stack memory
|
| Dates and Time
|
DayOfWeek
DofWeek
(L)
| Calculating day of week for 1900-2155
|
DayOfWk16a
DofWeek16a
(L)
| Calculating day of week for any 16-bit year
|
DayOfWk16b
DofWeek16b
(L)
|
| DateUpdate
| Incrementing a date to the next month
|
Authored by J.G.Harston