nqasm - assembler and disassembler for the nqcpu

	Commit message (Collapse)	Author	Age	Files	Lines
*	ndasm: re-indent token definitions	Bobby Bingham	2017-01-19	1	-13/+13
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*	nqasm: don't echo unknown tokens	Bobby Bingham	2017-01-19	1	-0/+1
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*	nqasm: support binary arithmetic operators in immediate operands	Bobby Bingham	2017-01-18	1	-8/+21
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*	nqasm: support unary operators in immediate expressions	Bobby Bingham	2017-01-18	1	-0/+10
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*	nqasm: allow "." to refer to current pc in immediate operand	Bobby Bingham	2017-01-18	1	-0/+3
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*	nqasm: reformat argument rules in grammar	Bobby Bingham	2017-01-18	1	-14/+7
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*	nqasm: lex registers as if they were labels	Bobby Bingham	2017-01-18	1	-9/+27
\| \| \| \| \|	This makes parsing registers trickier, but allows a label to have a name 'r0'-'r7', which would otherwise conflict with the registers.
*	nqasm: allow specifying labels for operands	Bobby Bingham	2017-01-18	1	-40/+24
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*	nqasm: parse labels	Bobby Bingham	2017-01-17	1	-2/+11
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*	nqasm: Fix warnings about missing braces in initializers	Bobby Bingham	2017-01-15	1	-2/+2
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*	Switch addpc to use pc-offset instead of immediate operand	Bobby Bingham	2017-01-15	1	-1/+4
\| \| \| \| \|	This makes more sense, as the argument is really a signed offset from the program counter.
*	nqasm: Reformat nop grammar	Bobby Bingham	2017-01-15	1	-2/+1
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*	nqasm: Handle pc offset arguments	Bobby Bingham	2017-01-15	1	-14/+20
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*	nqasm: Rename arglist non-terminals to a_*	Bobby Bingham	2017-01-15	1	-39/+46
\| \| \| \| \|	This will allow differentiation between pcoff (a single argument) and a_pcoff (an argument list consisting of only a pcoff argument).
*	nqasm: Handle immediate arguments	Bobby Bingham	2017-01-15	1	-6/+27
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*	nqasm: Handle register and register indirect arguments	Bobby Bingham	2017-01-15	1	-49/+45
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*	nqasm: Improve parsing at end of file	Bobby Bingham	2017-01-15	1	-3/+2
\| \| \| \| \| \| \| \| \|	Bison's implicit $accept rule ends with the END token. The fact that input could also end with END (via the line non-terminal) resulted in a shift reduce conflict. We resolve the conflict by modifying the lexer so that if it encounters end of file partway through a line, it produces a final EOL token before EOF.
*	nqasm: Initial stab at a lexer and parser	Bobby Bingham	2017-01-15	1	-0/+156
	So far, this only understands instructions, but no operands or labels. It doesn't handle bad input gracefully. It's just enough to test the basics.