diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/QemuMacDrivers/shared/MakeFunction.s | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/QemuMacDrivers/shared/MakeFunction.s')
| -rw-r--r-- | roms/QemuMacDrivers/shared/MakeFunction.s | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/roms/QemuMacDrivers/shared/MakeFunction.s b/roms/QemuMacDrivers/shared/MakeFunction.s new file mode 100644 index 000000000..7d3820ff9 --- /dev/null +++ b/roms/QemuMacDrivers/shared/MakeFunction.s @@ -0,0 +1,29 @@ +; MakeFunction sets up everything you need to make an assembly function +; callable from C and debuggable with a symbolic debugger. It does the following: +; - export the function's transition vector +; - export the function name +; - create a toc entry for the function's transition vector +; - create the transition vector, which must contain +; - the function entry point (the name of the function) +; - the TOC anchor (the predefined variable TOC[tc0]) +; - tell PPCAsm to create a function entry point symbol for symbolic debuggers +; - create a csect for the function (one csect per function lets the +; linker do dead code stripping, resulting in smaller executables) + + MACRO + MakeFunction &fnName + EXPORT &fnName[DS] + EXPORT .&fnName[PR] + + TC &fnName[TC], &fnName[DS] + + CSECT &fnName[DS] + DC.L .&fnName[PR] + DC.L TOC[tc0] + + CSECT .&fnName[PR] + FUNCTION .&fnName[PR] + + ENDM + +
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