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Discussion Groups | 68HC12 | Found Bug in AN974 MC68HC11 Floating Point Package
Join our technical discussions about Freescale Microcontrollers: M68HC12. (Freescale Semiconductor is a Subsidiary of Motorola).
Found Bug in AN974 MC68HC11 Floating Point Package - ga5941 - May 14 13:06:52 2009
FLTSIN subroutine did not work correctly for an input of 215 degrees. The bug is fixed by
replacing:
LDX three60
by:
LDX #three60
in the ANGRED routine several pages later.
The author's notes recommend not using the compare routine FLTCMP but instead use the FPACCCMP routine, but did not follow up and still used FLTCMP throughout. I replaced FLTCMP by FPACCCMP throughout the floating point package.
I use the floating point routines extensively in programming a MC9S12DP512 processor.
------------------------------------
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LDX three60
by:
LDX #three60
in the ANGRED routine several pages later.
The author's notes recommend not using the compare routine FLTCMP but instead use the FPACCCMP routine, but did not follow up and still used FLTCMP throughout. I replaced FLTCMP by FPACCCMP throughout the floating point package.
I use the floating point routines extensively in programming a MC9S12DP512 processor.
------------------------------------
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