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| author | Kartik K. Agaram <vc@akkartik.com> | 2021-03-31 23:16:01 -0700 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2021-03-31 23:16:01 -0700 |
| commit | d8d9dfa855c83fe52c7b8d26ef1f52dafdec8fa0 (patch) | |
| tree | 8a1e92e16ed909be84ad30b530970230f552aa22 | |
| parent | 971062583a431f916a742b161cc524f4e52d2a9e (diff) | |
| download | mu-d8d9dfa855c83fe52c7b8d26ef1f52dafdec8fa0.tar.gz | |
some hacky checks for common errors
They're not really baked into the regular compilation process; I have to remember to run them if I see strange behavior.
| -rw-r--r-- | linux/bootstrap/033check_operands.cc | 4 | ||||
| -rwxr-xr-x | misc_checks | 22 | ||||
| -rw-r--r-- | misc_checks.subx | 3 |
3 files changed, 29 insertions, 0 deletions
diff --git a/linux/bootstrap/033check_operands.cc b/linux/bootstrap/033check_operands.cc index c764fc61..62618204 100644 --- a/linux/bootstrap/033check_operands.cc +++ b/linux/bootstrap/033check_operands.cc @@ -145,6 +145,10 @@ void init_permitted_arguments() { put(Permitted_arguments, "99", 0x00); // return put(Permitted_arguments, "c3", 0x00); + // enable/disable interrupts + // not really part of SubX; just needed in low-level boot.subx + put(Permitted_arguments, "fa", 0x00); + put(Permitted_arguments, "fb", 0x00); //// Class B: just op and disp8 // imm32 imm8 disp32 |disp16 disp8 subop modrm diff --git a/misc_checks b/misc_checks new file mode 100755 index 00000000..91384ea3 --- /dev/null +++ b/misc_checks @@ -0,0 +1,22 @@ +#!/bin/sh +# Hackily check for certain kinds of errors. +# +# We still rely exclusively on linux/bootstrap/bootstrap for some static +# checks on bare SubX code that aren't implemented yet in the self-hosted +# translator phases. +# +# However, boot.subx uses instructions that bootstrap doesn't recognize. So we +# won't check it. + +set -e + +cat $* [0-9]*.mu |linux/mu > a.subx + +cat misc_checks.subx mu-init.subx [0-9]*.subx a.subx |linux/braces > a.braces +cat a.braces |linux/calls > a.calls +cat a.calls |linux/sigils > a.sigils + +CXXFLAGS=-g linux/bootstrap/bootstrap --debug translate a.sigils -o a.elf +# Translation will never succeed, +# but if we get to "missing reference to global" errors, they're expected and +# we've gotten to the end of what bootstrap can check for us. diff --git a/misc_checks.subx b/misc_checks.subx new file mode 100644 index 00000000..f9cedf92 --- /dev/null +++ b/misc_checks.subx @@ -0,0 +1,3 @@ +== code 0x00000000 + +== data 0x80000000 |