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* 6972 - tile: stop persisting cursor-wordKartik Agaram2020-10-082-26/+94
| | | | Rather surprisingly, this transformation worked the first time!
* Merge pull request #42 from jimmyhmiller/patch-1Kartik Agaram2020-10-081-1/+1
|\ | | | | Fix broken link
| * Fix broken linkJimmy Miller2020-10-081-1/+1
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* 6969Kartik Agaram2020-10-062-24/+5
| | | | Fix and cleanup.
* 6968Kartik Agaram2020-10-063-37/+162
| | | | | | | | | | | | Snapshot that requires a check in the Mu compiler. Currently I don't spill a register if it could possibly be over-written by a function output within. However, find-in-call-path is a good example of where this constraint is too lenient and results in unsafe code. The variable `curr` gets clobbered during loop update by the variable `match?`. What's the answer? Perhaps we should ban all conditional updates to function outputs? That'd be dashed inconvenient.
* 6967Kartik Agaram2020-10-052-15/+116
| | | | | Function expand/contract still works, but the implementation is totally different under the hood.
* 6966Kartik Agaram2020-10-052-35/+15
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* 6965Kartik Agaram2020-10-053-24/+24
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* 6964 - tile: start tracking word index in fn bodyKartik Agaram2020-10-051-0/+10
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* 6963 - tile: more idiomatic conventional replKartik Agaram2020-10-053-39/+37
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* 6962Kartik Agaram2020-10-053-38/+34
| | | | | Slowly hoist cursor-word from environment to sandbox. This isn't its final destination.
* 6961Kartik Agaram2020-10-051-4/+6
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* 6960Kartik Agaram2020-10-054-53/+141
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* 6959Kartik Agaram2020-10-052-962/+415
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* 6958Kartik Agaram2020-10-05141-39524/+46411
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* 6957Kartik Agaram2020-10-0511-20306/+20419
| | | | | | | | The final fix to the raytracing program involves rounding modes. It turns out x86 processors round floats by default, unlike C which has trained me to expect truncation. Rather than mess with the MXCSR register, I added another instruction for truncation. Now milestone 3 emits perfectly correct results.
* 6956Kartik Agaram2020-10-051-16/+30
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* 6955Kartik Agaram2020-10-051-27/+30
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* 6954Kartik Agaram2020-10-051-13/+13
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* 6953Kartik Agaram2020-10-052-0/+180006
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* 6952 - raytracing: much betterKartik Agaram2020-10-045-2/+330
| | | | | | | | | | | | | | | The image is now visually indistinguishable from the baseline, though the file isn't quite bit-for-bit correct. I found 3 bugs: a) I forgot to normalize the ray. After creating a helper to "automatically" do it for me, it turns out said helper requires manually using. b) I forgot to multiply by t at one place. c) vec3-length was half-written. For the umpteenth time, the bugs were all in the last place I looked. I was worried about spending a lot of time transcribing `main` without any feedback, but that turned out to be perfect.
* 6951 - 4 colors for Mu as wellKartik Agaram2020-10-042-84/+89
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* 6950Kartik Agaram2020-10-041-0/+459
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* 6949 - snapshot of next raytracing milestoneKartik Agaram2020-10-046-70/+388
| | | | | | | | | | | | | Not yet right, but worth a snapshot just because it gives a cool result. Here, try it out: $ ./translate_mu_debug apps/raytracing/3.mu $ ./a.elf > x.ppm Now view x.ppm as an image. In general, this was quite tedious to write. And a still-open question is how to emit the progress bar to stderr. My options are to either duplicate all my print-* functions (already proliferating) or add global variables to Mu.
* 6948 - stress-testing prints of floatsKartik Agaram2020-10-044-3/+154
| | | | Looks good.
* 6947 - change exponent separator since 'e' is hexKartik Agaram2020-10-041-3/+3
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* 6946 - print floats somewhat intuitively in hexKartik Agaram2020-10-0418-44/+314
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* 6945Kartik Agaram2020-10-041-2/+2
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* 6944Kartik Agaram2020-10-042-0/+7
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* 6943Kartik Agaram2020-10-044-97/+71
| | | | | | | | Move some implementation around for floating-point. I originally thought I wouldn't bother supporting sigils like %xmm0. But it turns out I need them to pass floats into SubX function calls. And it turns out the sigils work fine for free.
* 6942Kartik Agaram2020-10-042-0/+20
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* 6941 - detective story for the dayKartik Agaram2020-10-032-0/+119
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* 6940Kartik Agaram2020-10-031-10/+10
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* 6939Kartik Agaram2020-10-031-0/+6
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* 6938 - start colorizing floating-point registersKartik Agaram2020-10-032-7/+7
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* 6937Kartik Agaram2020-10-032-36/+42
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* 6936Kartik Agaram2020-10-031-0/+146
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* 6935 - raytracing using floatsKartik Agaram2020-10-034-0/+65691
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* 6934Kartik Agaram2020-10-032-0/+26
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* 6933Kartik Agaram2020-10-031-10/+11
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* 6932 - another bug related to floatsKartik Agaram2020-10-032-0/+70
| | | | | | | For most of Mu's history we've selected between primitives based on types just by checking whether a type is a literal or not. Now we've started checking if it's a float as well. However, floats need one additional check: the call site may have an (addr float) that is dereferenced.
* 6931 - support fp registers in variable lookupKartik Agaram2020-10-032-4/+82
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* 6930Kartik Agaram2020-10-032-4/+2
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* 6929Kartik Agaram2020-10-031-22/+32
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* 6928Kartik Agaram2020-10-031-0/+1
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* 6927 - working on a raytracing tutorialKartik Agaram2020-10-037-0/+65702
| | | | https://raytracing.github.io/books/RayTracingInOneWeekend.html
* 6926Kartik Agaram2020-10-021-0/+4
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* 6925 - tile: don't try to print escape sequencesKartik Agaram2020-10-013-1/+50
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* 6924Kartik Agaram2020-10-013-14/+13
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* 6923Kartik Agaram2020-10-0183-24543/+0
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