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Diffstat (limited to 'agbx/source/gfx/clrscrn.cc')
| -rw-r--r-- | agbx/source/gfx/clrscrn.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/agbx/source/gfx/clrscrn.cc b/agbx/source/gfx/clrscrn.cc new file mode 100644 index 0000000..8f27268 --- /dev/null +++ b/agbx/source/gfx/clrscrn.cc @@ -0,0 +1,23 @@ +/* + Copyright 2022 Gabriel Jensen. + This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. + If a copy of the MPL was not distributed with this file, You can obtain one at <https://mozilla.org/MPL/2.0>. +*/ + +#include <ax/priv.h> + +#include <ax/gfx.h> + +template<typename _pxtyp> [[gnu::always_inline]] inline static auto __ax_clrscrn(::ax_i02 const _vaddr,_pxtyp const _col) noexcept -> void { + static_assert(::__ax_typeq<_pxtyp,::ax_i8> || ::__ax_typeq<_pxtyp,::ax_i01>); + ::ax_i02 const val = [&_col] { + if constexpr (::__ax_typeq<_pxtyp,::ax_i01>) { + return (ax_i02)_col | (ax_i02)_col << 0x10u; + } + return (ax_i02)_col | (ax_i02)_col << 0x8u | (ax_i02)_col << 0x10u | (ax_i02)_col << 0x18u; + }(); + for (::ax_i02 addr = _vaddr;addr != _vaddr + 0x9600u;addr += 0x4u) {__ax_set20(addr,val);} +} + +extern "C" auto ax_clrscrn1(::ax_i02 const _vaddr,::ax_i8 const _col) -> void {::__ax_clrscrn(_vaddr,_col);} +extern "C" auto ax_clrscrn2(::ax_i02 const _vaddr,::ax_i01 const _col) -> void {::__ax_clrscrn(_vaddr,_col);} |