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github.com/moarvm/moarvm | IRC logs at colabti.org/irclogger/irclogger_logs/moarvm Set by AlexDaniel on 12 June 2018. |
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| brrt | \o | 06:16 | |
| jnthn++ nice post | |||
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| brrt | I need slightly more bits for the tiler to store the register class.. | 08:04 | |
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| brrt | re: register requirement encoding | 13:17 | |
| current state of the art is one 32 bit bitmap for both flags and register number, if any | |||
| samcv | good * brrt | 13:20 | |
| timotimo | * * * | 13:24 | |
| brrt | ohai samcv | 13:41 | |
| happy new year | |||
| anyway, I was going to say, I think I'm going to drop that design | |||
| because 8 bits per register specification is a bit too small | 13:42 | ||
| (it is just about large enough for the x86-64 though) | |||
| well, that's not fair, it is ample for x86-64 | 13:43 | ||
| What I sometimes do for this, is encode the data as a string... but that only works if the data-per-byte is really small | 13:47 | ||
| maybe the simplest thing is just to use 1 byte for the flags, 1 for the fixed number (if any) | 13:49 | ||
| samcv | happy new year | 13:56 | |
| what's this for? | |||
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| brrt | this is for the floating point support | 14:16 | |
| I need to indicate the register class used for a value | 14:17 | ||
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| brrt | so there's thre pieces of information: | 14:19 | |
| - is this a register-value or not (e.g. a 'flag' doesn't get an explicit value) | 14:20 | ||
| - what register class is this value, if any | |||
| - is this register fixed (e.g. div uses rax,rcx for its operands) | 14:21 | ||
| - what is the fixed register, if any | |||
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| Geth | MoarVM/pea: 31 commits pushed by (Jonathan Worthington)++, (Carl Masak)++ review: github.com/MoarVM/MoarVM/compare/6...4731b8f842 |
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| jnthn | Rebase | ||
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| brrt | rebases are important | 19:15 | |
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