5 Commits

Author	SHA1	Message	Date
Michael C. Martin	eae4ea7dcd	Extend .advance to allow a filler expression.	2012-05-30 20:45:37 -07:00
Michael C. Martin	57e663cf29	Remove spurious CRLFs	2012-05-29 18:24:20 -07:00
Michael C. Martin	af50326e39	Add the NOP Zero Page undocumented opcode. ... This seems to be one of the preferred undocced ops in the Atari 2600 VCS development community.	2012-05-29 18:24:20 -07:00
Michael C. Martin	f8bc917601	A new 'correctness optimization': ExtendBranches. ... This pass actually isn't an optimizer in that it produces larger binaries when it triggers. However, the larger binaries created will actually assemble properly. The ExtendBranches pass detects Relative instructions (that is, branches) that extend past the signed-8-bit range Relative instructions permit, and replaces them with a branch-jump combination with identical semantics. Since this may be evidence of a program bug, Ophis will warn when the optimization is triggered. Due to similarities between this pass and UpdateLabels, both passes have been refactored in passing.	2012-05-27 15:57:23 -07:00
Michael C. Martin	2c8dba2450	Initial import of the Ophis 1.0 distribution and supplemental material	2011-08-20 16:33:25 -07:00