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LibWasm: Implement parsing all remaining instructions

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With this, we can parse a module at least as simple as the following C
code would generate:
```c
int add(int x, int y) {
    if (x > y)
        return x + y;
    return y - x; // Haha goteeem
}
```
This commit is contained in:
Ali Mohammad Pur 2021-04-27 17:59:21 +04:30 • committed by Andreas Kling
parent 426878c884
commit 50cb80649f
3 changed files with 475 additions and 33 deletions
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55
Userland/Libraries/LibWasm/Opcode.h
View file

@ -10,7 +10,7 @@
namespace Wasm {
TYPEDEF_DISTINCT_ORDERED_ID(u8, OpCode);
TYPEDEF_DISTINCT_ORDERED_ID(u32, OpCode);
namespace Instructions {
@ -187,16 +187,49 @@ static constexpr OpCode unreachable = 0x00,
i64_reinterpret_f64 = 0xbd,
f32_reinterpret_i32 = 0xbe,
f64_reinterpret_i64 = 0xbf,
table_init = 0xfc,
table_drop = 0xfc,
table_copy = 0xfc,
table_grow = 0xfc,
table_size = 0xfc,
table_fill = 0xfc,
memory_init = 0xfc,
data_drop = 0xfc,
memory_copy = 0xfc,
memory_fill = 0xfc;
ref_null = 0xd0,
ref_is_null = 0xd1,
ref_func = 0xd2;
// These are synthetic opcodes, they are _not_ seen in wasm with these values.
static constexpr OpCode i32_trunc_sat_f32_s = 0xfc00,
i32_trunc_sat_f32_u = 0xfc01,
i32_trunc_sat_f64_s = 0xfc02,
i32_trunc_sat_f64_u = 0xfc03,
i64_trunc_sat_f32_s = 0xfc04,
i64_trunc_sat_f32_u = 0xfc05,
i64_trunc_sat_f64_s = 0xfc06,
i64_trunc_sat_f64_u = 0xfc07,
memory_init = 0xfc08,
data_drop = 0xfc09,
memory_copy = 0xfc0a,
memory_fill = 0x0fc0b,
table_init = 0xfc0c,
elem_drop = 0xfc0d,
table_copy = 0xfc0e,
table_grow = 0xfc0f,
table_size = 0xfc10,
table_fill = 0xfc11;
static constexpr u32 i32_trunc_sat_f32_s_second = 0,
i32_trunc_sat_f32_u_second = 1,
i32_trunc_sat_f64_s_second = 2,
i32_trunc_sat_f64_u_second = 3,
i64_trunc_sat_f32_s_second = 4,
i64_trunc_sat_f32_u_second = 5,
i64_trunc_sat_f64_s_second = 6,
i64_trunc_sat_f64_u_second = 7,
memory_init_second = 8,
data_drop_second = 9,
memory_copy_second = 10,
memory_fill_second = 11,
table_init_second = 12,
elem_drop_second = 13,
table_copy_second = 14,
table_grow_second = 15,
table_size_second = 16,
table_fill_second = 17;
}
}