64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
#ifdef _CASIO_SYSCALLS_H
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#define _CASIO_SYSCALLS_H
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#else
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// the following definitions are only needed once
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#define _CASIO_SYSCALLS_SCA 0xD201D002
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#define _CASIO_SYSCALLS_SCB 0x422B0009
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#define _CASIO_SYSCALLS_SCE 0x80010070
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// 0x80010070 is the fx-9860-syscall-entry point
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// 0x80020070 is the fx-CG-syscall-entry point (but remember: the syscall numbers are different!)
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// for reference:
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// this are the assembler instructions, which represent the int arrays of the type
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// "const unsigned int scSyscallNo[] = { SCA, SCB, SCE, SyscallNo };"
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// mov.l #h'80010070, r2
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// mov.l #SyscallNo, r0
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// jmp @r2
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// nop
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/*
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* Macro for defining function pointers to some Casio syscalls
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* see for addesses: http://media.taricorp.net/prizm/simon_chm/fx_legacy_syscalls.htm
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*/
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#define DEFINE_CASIO_SYSCALL_FN_PTR(func_name, ret, args, addr) \
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typedef ret (* _ ## func_name ## _type) args; \
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const unsigned int _ ## func_name ## _ ## address[] = {_CASIO_SYSCALLS_SCA, _CASIO_SYSCALLS_SCB, _CASIO_SYSCALLS_SCE, addr}; \
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const _ ## func_name ## _type _ ## func_name ## _ptr = (_ ## func_name ## _type) _ ## func_name ## _ ## address;
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/* example for the code generated by DEFINE_SYSCALL_FN_PTR(malloc, void*, (size_t), 0xACD) */
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// typedef void* (*_malloc_type)(size_t size);
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// const unsigned int _malloc_address[] = { SCA, SCB, SCE, 0xACD };
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// const _malloc_type _malloc_ptr = (_malloc_type) _malloc_address;
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/*
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* Original Casio key positions
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*/
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#define _CASIO_ROW_AC 1
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#define _CASIO_ROW_MIN 2 // bottom
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#define _CASIO_ROW_SHIFT 9
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#define _CASIO_ROW_ALPHA 8
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#define _CASIO_ROW_MAX 10 // top
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#define _CASIO_COL_AC 1
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#define _CASIO_COL_MIN 2 // right
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#define _CASIO_COL_SHIFT 7
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#define _CASIO_COL_ALPHA 7
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#define _CASIO_COL_MAX 7 // left
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/*
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* Casio syscalls (non-stdlib)
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*/
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int GetKey(unsigned int* keycode);
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int PutKey(int keycode, int mode);
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int GetKeyWait(int*column, int*row, int type_of_waiting, int timeout_period, int menu, unsigned short *keycode);
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void Bdisp_AllClr_DDVRAM(void);
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void Bdisp_PutDisp_DD(void);
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void Print(const unsigned char* str);
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void locate(int x, int y);
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void wait_ms(unsigned int ms); // TODO signature assumed
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#endif /* _CASIO_SYSCALLS_H */
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