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91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
/***************************************************************************************
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* Genesis Plus GX
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* CPU hooking support
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*
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* HOOK_CPU should be defined in a makefile or MSVC project to enable this functionality
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*
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* Copyright DrMefistO (2018-2019)
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*
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* Copyright feos (2019)
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*
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* Redistribution and use of this code or any derivative works are permitted
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* provided that the following conditions are met:
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*
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* - Redistributions may not be sold, nor may they be used in a commercial
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* product or activity.
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*
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* - Redistributions that are modified from the original source must include the
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* complete source code, including the source code for all components used by a
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* binary built from the modified sources. However, as a special exception, the
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* source code distributed need not include anything that is normally distributed
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* (in either source or binary form) with the major components (compiler, kernel,
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* and so on) of the operating system on which the executable runs, unless that
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* component itself accompanies the executable.
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*
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* - Redistributions must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************************/
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#ifndef _CPUHOOK_H_
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#define _CPUHOOK_H_
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typedef enum {
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HOOK_ANY = (0 << 0),
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// M68K
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HOOK_M68K_E = (1 << 0),
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HOOK_M68K_R = (1 << 1),
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HOOK_M68K_W = (1 << 2),
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HOOK_M68K_RW = HOOK_M68K_R | HOOK_M68K_W,
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// VDP
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HOOK_VRAM_R = (1 << 3),
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HOOK_VRAM_W = (1 << 4),
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HOOK_VRAM_RW = HOOK_VRAM_R | HOOK_VRAM_W,
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HOOK_CRAM_R = (1 << 5),
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HOOK_CRAM_W = (1 << 6),
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HOOK_CRAM_RW = HOOK_CRAM_R | HOOK_CRAM_W,
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HOOK_VSRAM_R = (1 << 7),
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HOOK_VSRAM_W = (1 << 8),
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HOOK_VSRAM_RW = HOOK_VSRAM_R | HOOK_VSRAM_W,
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// Z80
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HOOK_Z80_E = (1 << 9),
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HOOK_Z80_R = (1 << 10),
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HOOK_Z80_W = (1 << 11),
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HOOK_Z80_RW = HOOK_Z80_R | HOOK_Z80_W,
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// REGS
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HOOK_VDP_REG = (1 << 12),
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HOOK_M68K_REG = (1 << 13),
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} hook_type_t;
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/* CPU hook is called on read, write, and execute.
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*/
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void (*cpu_hook)(hook_type_t type, int width, unsigned int address, unsigned int value);
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/* Use set_cpu_hook() to assign a callback that can process the data provided
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* by cpu_hook().
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*/
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void set_cpu_hook(void(*hook)(hook_type_t type, int width, unsigned int address, unsigned int value));
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#endif /* _CPUHOOK_H_ */ |