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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190917111441.27405-2-kraxel@redhat.compull/82/head
3 changed files with 50 additions and 26 deletions
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/*
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* QEMU VGA Emulator templates |
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* |
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* Copyright (c) 2003 Fabrice Bellard |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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static inline uint8_t vga_read_byte(VGACommonState *vga, uint32_t addr) |
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{ |
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return vga->vram_ptr[addr & vga->vbe_size_mask]; |
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} |
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static inline uint16_t vga_read_word_le(VGACommonState *vga, uint32_t addr) |
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{ |
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uint32_t offset = addr & vga->vbe_size_mask & ~1; |
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uint16_t *ptr = (uint16_t *)(vga->vram_ptr + offset); |
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return lduw_le_p(ptr); |
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} |
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static inline uint16_t vga_read_word_be(VGACommonState *vga, uint32_t addr) |
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{ |
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uint32_t offset = addr & vga->vbe_size_mask & ~1; |
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uint16_t *ptr = (uint16_t *)(vga->vram_ptr + offset); |
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return lduw_be_p(ptr); |
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} |
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static inline uint32_t vga_read_dword_le(VGACommonState *vga, uint32_t addr) |
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{ |
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uint32_t offset = addr & vga->vbe_size_mask & ~3; |
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uint32_t *ptr = (uint32_t *)(vga->vram_ptr + offset); |
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return ldl_le_p(ptr); |
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} |
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