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EEC-Developers / eec

Enhanced E Compiler - AmigaE programming
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68000 backend #2

Closed SamuraiCrow closed 1 year ago

SamuraiCrow commented 4 years ago

Modify 68020 backend to not emit 68020 addressing modes or opcodes for 68000 support

SamuraiCrow commented 3 years ago

Issues #5 and #6 should be considered prerequisites for this one.

SamuraiCrow commented 2 years ago

Due to a microcode bug on the flat 68000, the CLR opcode doesn't work right on data registers. Substitution of EOR using the same data register as source and destination is a drop-in substitute.

SamuraiCrow commented 1 year ago

The array lookup may be the only internal usage of a 68020 operation presently.

SamuraiCrow commented 1 year ago

Superceded by #26 .