torque-asm/src/stages, branch v2.3.0Lightweight meta-assemblerhttps://code.benbridle.com/torque-asm/atom?h=v2.3.02025-04-18T08:47:59ZAllow a macro to invoke itself safely2025-04-18T08:47:59ZBen Bridleben@derelict.engineering2025-04-18T08:47:47Zurn:sha1:75018f1ec69162a0695e603030f5e1a5cc105af0
A macro can now invoke itself if the invocation is inside a conditional
block that will eventually return false. The assembler stack can still
overflow if the macro recurses too deeply, or if a macro calls itself
without a conditional block.
Allow a macro to invoke itself2025-04-18T08:45:19ZBen Bridleben@derelict.engineering2025-04-18T08:43:37Zurn:sha1:e0595e64cc1fa3c9b01a73ed9c67487e40dc54f9
This will currently cause the assembler to hang in all situations where
it is used.
Implement <len> operator for expressions2025-04-18T08:34:39ZBen Bridleben@derelict.engineering2025-04-18T08:34:39Zurn:sha1:373c512397dde9c767ac65453780931a84704ce4
The <len> operator returns the width of an integer in bits, using the
same calculation as for packing an integer into a bit field.
Implement octal literals2025-04-17T04:37:45ZBen Bridlebridle.benjamin@gmail.com2025-04-17T04:37:45Zurn:sha1:6eb86dc668ccd3e3b263f5942ab4eef63f49a7db
Octal literals use the prefix '0o'.
Fix width checks for negative integers2025-04-11T22:19:26ZBen Bridleben@derelict.engineering2025-04-11T22:19:26Zurn:sha1:dddb76c4ad504022fa4f4c4f6965c08da22c387e
The width of a negative integer was previously being counted in the
same way as for a positive integer, by inverting the bits to make it a
positive integer and then finding the placement of the highest-order 1
bit.
The actual width of a negative integer will always be one greater than
this value however, because the highest-order 1 bit of an inverted
negative integer will always have directly above it a significant 0 bit
used as the sign bit.
Implement negative integer literals2025-04-11T22:08:09ZBen Bridleben@derelict.engineering2025-04-11T22:08:09Zurn:sha1:c724c9157dbc4721fa8ed93033cd9699c9652277
Negative literals take the forms -29, -0x1D, and -0b11101 for decimal,
hexadecimal, and binary.
Report token without prefix in invalid literal errors2025-03-22T22:37:29ZBen Bridleben@derelict.engineering2025-03-22T22:37:29Zurn:sha1:315d23bf2148e831b0c14a118841133aacc1fb96
Previously, the token quoted in the error message for an invalid
literal error included the radix prefix. This is already visible in
the highlighted source report, and implied by the named radix in the
error message.
Update assembler dependency2025-03-18T00:24:20ZBen Bridleben@derelict.engineering2025-03-17T23:06:17Zurn:sha1:0925bd156ae2e34ad259d40aaf870eb5f7cfcfb9
torque-asm now uses the Compiler type provided by the assembler library.
Tidy cody2025-03-18T00:24:20ZBen Bridleben@derelict.engineering2025-03-18T00:24:02Zurn:sha1:f25bc47f5c6b7e52304b1e9c9adb4310f2e77ee7
- Rename tokens field on SyntacticMacroDefinition to body
- Rename push_err! macro to err!
- Create macros for character-matching logic in syntactic parsing
- Replace .as_bytes().to_vec() pattern with .into_bytes()
Rewrite entire assembler2025-03-11T03:59:26ZBen Bridleben@derelict.engineering2025-03-06T07:33:27Zurn:sha1:1ecee352f5844b0809d7ae66df52e34f42b44c8e
The language is now more general, the code is better structured, error
reporting is more detailed, and many new language features have
been implemented:
- conditional blocks
- first-class strings
- more expression operators
- binary literals
- negative values
- invocations in constant expressions