# shz_xmtrx_apply_reverse_transpose_unaligned_4x4

Source: https://sh4zam.com/api/xmtrx/shz_xmtrx_apply_reverse_transpose_unaligned_4x4/

```c
SHZ_INLINE void shz_xmtrx_apply_reverse_transpose_unaligned_4x4(const float matrix[16]) SHZ_NOEXCEPT;
```

Multiplies and accumulates XMTRX onto the transpose of the given float array as a 4x4 matrix, storing the result as XMTRX.

## Parameters

| Name | Type | Description |
| --- | --- | --- |
| `matrix` | `const float [16]` |  |

## Returns

Nothing (`void`).

## Naming and requirements

- `_unaligned`: Works on matrix data that is not 8-byte aligned, passed as a plain `float[16]`. The default routines use 64-bit paired `FMOV` loads that need 8-byte alignment. ([Naming and Suffixes](https://sh4zam.com/concepts/naming-and-suffixes/))
- `_transpose`: Operates with the transposed matrix (row-major input, or inverse-rotation use). ([Naming and Suffixes](https://sh4zam.com/concepts/naming-and-suffixes/))
- `_reverse`: Reversed multiplication order (pre-multiply instead of post-multiply). ([Naming and Suffixes](https://sh4zam.com/concepts/naming-and-suffixes/))

## Availability

- **C++ equivalent:** none (call the C function from C++)
- **Type-generic form:** none
- **Back-ends:** SH4: shared C implementation · SW: portable C · SPU: shared C implementation
- **Defined in:** [`sh4zam/shz_xmtrx.h:426`](https://github.com/gyrovorbis/sh4zam/blob/ba1e30c88d49df0311870b229e1dd860ef26c477/include/sh4zam/shz_xmtrx.h#L426)
- **Module:** [XMTRX](https://sh4zam.com/api/xmtrx/), section "Apply Operation"