2026-07-04 Gabriele Gorla <gorlik@yahoo.com>

    * src/mos6502/genbuiltin.c,
      device/include/math.h,
      device/lib/fabsf.c,
      src/mos6502/gen.c,
      src/mos6502/gen.h,
      src/mos6502/main.c,
      src/mos6502/ralloc2.cc:
      Implement __builtin_fabsf
    * src/mos6502/stackops.c:
      Fix bug #4030.
    * src/mos6502/gen.c:
      Don't unecessarily dirty double registers in m6502_transferRegReg().
    * src/mos6502/peep.c,
      src/mos6502/peeph.def:
      Implement notUsed() for registers and update peephole rules to match.
    * src/mos6502/peeph.def:
      Add AND followed by AND rule.

2026-07-05 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/f8/gen.c:
	  Fix bug #4035.

2026-07-04 Gabriele Gorla <gorlik@yahoo.com>

	* src/mos6502/main.c:
	  Always do CSE.
	* src/mos6502/gen.c,
	  src/mos6502/peeph.def:
	  Improve m6502_genCopy().
	* src/mos6502/ralloc.c:
	  Make all bitwise operation optimizable.

2026-07-04 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/stm8/gen.c:
	  Fix bug #4032.

2026-07-04 Gabriele Gorla <gorlik@yahoo.com>

	* src/mos6502/gen.c:
	  Improve handling of AOP_LIT in m6502_accopWithAop. Use register tracking in genCmpEQorNE.
	* src/mos6502/gen.c:
	  Improve genPointerSet().
	* src/mos6502/peep.c:
	  Cosmetic changes.

2026-07-04 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/z80/gen.c:
	  Fix an invalid warning in z80-related codegen.

2026-07-04 Gabriele Gorla <gorlik@yahoo.com>

	* src/mos6502/gen.c,
	  src/mos6502/peeph.def:
	  Improve m6502_copy when srcsize==1. 

2026-07-04 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/mcs51/peeph.def:
	  Remove peephole rule 130, which should not be necessaryy if codgen works correctly.
	* support/regression/tests/far_arithmetic.c.in:
	  Disable part of a test for pdk15, where it fails due to lack of code memory.
	* support/regression/tests/string.c:
	  Disable part of a test for mcs51 small model, where it fails due to lack of data memory.

2026-07-03 Gabriele Gorla <gorlik@yahoo.com>

	* src/mos6502/gen.c:
	  Only preserve used registers before a call. 

2026-07-02 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/z80/peep.c:
	  Fix bug #4028.

2026-06-26 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/z80/gen.c:
	  Fix bug #4026.

2026-06-25 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/SDCCdflow.h,
	  src/SDCCgenconstprop.cc,
	  src/SDCCopt.c,
	  src/*/gen.c:
	  Fix bug #4025.

2026-06-24 Philipp Klaus Krause <philipp@colecovision.eu>

	* src/stm8/gen.c:
	  Fix bug #4020.
	* src/f8/gen.c:
	  Fix bug #4022.
	* src/z80/gen.c:
	  Fix bug #4021.