pelya
97 lines
2.1 KiB
C
Executable File
97 lines
2.1 KiB
C
Executable File
#ifndef ESC_H_
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#define ESC_H_
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/* TRUE to enable patched (fast) Serial I/O. */
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extern int ESC_enable_sio_patch;
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/* Escape codes used to mark places in 6502 code that must
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be handled specially by the emulator. An escape sequence
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is an illegal 6502 opcode 0xF2 or 0xD2 followed
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by one of these escape codes: */
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enum ESC_t {
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/* SIO patch. */
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ESC_SIOV,
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/* stdio-based handlers for the BASIC version
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and handlers for Atari Basic loader. */
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ESC_EHOPEN,
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ESC_EHCLOS,
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ESC_EHREAD,
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ESC_EHWRIT,
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ESC_EHSTAT,
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ESC_EHSPEC,
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ESC_KHOPEN,
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ESC_KHCLOS,
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ESC_KHREAD,
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ESC_KHWRIT,
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ESC_KHSTAT,
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ESC_KHSPEC,
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/* Atari executable loader. */
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ESC_BINLOADER_CONT,
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/* Cassette emulation. */
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ESC_COPENLOAD = 0xa8,
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ESC_COPENSAVE = 0xa9,
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/* Printer. */
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ESC_PHOPEN = 0xb0,
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ESC_PHCLOS = 0xb1,
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ESC_PHREAD = 0xb2,
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ESC_PHWRIT = 0xb3,
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ESC_PHSTAT = 0xb4,
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ESC_PHSPEC = 0xb5,
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ESC_PHINIT = 0xb6,
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#ifdef R_IO_DEVICE
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/* R: device. */
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ESC_ROPEN = 0xd0,
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ESC_RCLOS = 0xd1,
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ESC_RREAD = 0xd2,
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ESC_RWRIT = 0xd3,
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ESC_RSTAT = 0xd4,
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ESC_RSPEC = 0xd5,
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ESC_RINIT = 0xd6,
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#endif
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/* H: device. */
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ESC_HHOPEN = 0xc0,
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ESC_HHCLOS = 0xc1,
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ESC_HHREAD = 0xc2,
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ESC_HHWRIT = 0xc3,
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ESC_HHSTAT = 0xc4,
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ESC_HHSPEC = 0xc5,
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ESC_HHINIT = 0xc6
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};
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/* A function called to handle an escape sequence. */
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typedef void (*ESC_FunctionType)(void);
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/* Puts an escape sequence at the specified address. */
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void ESC_Add(UWORD address, UBYTE esc_code, ESC_FunctionType function);
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/* Puts an escape sequence followed by the RTS instruction. */
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void ESC_AddEscRts(UWORD address, UBYTE esc_code, ESC_FunctionType function);
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/* Puts an escape sequence with an integrated RTS. */
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void ESC_AddEscRts2(UWORD address, UBYTE esc_code, ESC_FunctionType function);
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/* Unregisters an escape sequence. You must cleanup the Atari memory yourself. */
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void ESC_Remove(UBYTE esc_code);
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/* Handles an escape sequence. */
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void ESC_Run(UBYTE esc_code);
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/* Installs SIO patch and disables ROM checksum test. */
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void ESC_PatchOS(void);
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/* Unregisters all escape sequences */
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void ESC_ClearAll(void);
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/* Reinitializes patches after enable_*_patch change. */
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void ESC_UpdatePatches(void);
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#endif /* ESC_H_ */
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