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riscv: airAsm rewrite

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with this rewrite we can call functions inside of
inline assembly, enabling us to use the default start.zig logic

all that's left is to implement lr/sc loops for atomically manipulating
1 and 2 byte values, after which we can use the segfault handler logic.
This commit is contained in:
David Rubin
2024-07-25 05:50:30 -07:00
parent b533e848a2
commit a1f6a8ef90
12 changed files with 377 additions and 154 deletions
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test/behavior/struct.zig
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@@ -504,7 +504,6 @@ test "packed struct fields are ordered from LSB to MSB" {
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
var all: u64 = 0x7765443322221111;
var bytes: [8]u8 align(@alignOf(Bitfields)) = undefined;