232 lines
6.7 KiB
C
232 lines
6.7 KiB
C
#ifndef _MSXBIOS_H
|
|
#define _MSXBIOS_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#define MSXUSR(pc) __asm__("call "#pc);
|
|
|
|
/// VARIABLES
|
|
|
|
const uint8_t* __at(0x0004) MSX_charset;
|
|
const uint8_t __at(0x0006) MSX_vdp_port_read;
|
|
const uint8_t __at(0x0007) MSX_vdp_port_write;
|
|
const uint8_t __at(0x002d) MSX_version;
|
|
|
|
// F3AE: # of positions on a line in SCREEN 0 (ini:39)
|
|
uint8_t __at(0xf3ae) LINL40;
|
|
// F3AF: # of positions on a line in SCREEN 1 (ini:29)
|
|
uint8_t __at(0xf3af) LINL32;
|
|
// F3B0: # of actually used positions in the current screenmodus (ini:39)
|
|
uint8_t __at(0xf3b0) LINLEN;
|
|
// F3B1: # of used lines on screen (ini:24)
|
|
uint8_t __at(0xf3b1) CRTCNT;
|
|
// F3B2: # of positions within a tabulator-column (ini:14)
|
|
uint8_t __at(0xf3b1) CLMLST;
|
|
|
|
typedef struct {
|
|
uint16_t name;
|
|
uint16_t color;
|
|
uint16_t pattern;
|
|
uint16_t sprite_attribute;
|
|
uint16_t sprite_pattern;
|
|
} MSXVDPModeData;
|
|
|
|
MSXVDPModeData __at(0xf3b3) MSX_modedata_screen0;
|
|
MSXVDPModeData __at(0xf3bd) MSX_modedata_screen1;
|
|
MSXVDPModeData __at(0xf3c7) MSX_modedata_screen2;
|
|
MSXVDPModeData __at(0xf3d1) MSX_modedata_screen3;
|
|
|
|
// F3DC: line where the cursor is located
|
|
uint8_t __at(0xf3dc) CSRY;
|
|
// F3DD: column where the cursor is located
|
|
uint8_t __at(0xf3dd) CSRX;
|
|
// F3DE: function key definition shown: 0: no, -1: yes
|
|
uint8_t __at(0xf3de) CNSDFG;
|
|
// F3DF-D3E6: storage for the last written value towards VDP registers 0 till 7
|
|
uint8_t __at(0xf3df) MSX_vdp_regs[8];
|
|
// F3E7: last read value of VDP register 8
|
|
uint8_t __at(0xf3e7) STATFL;
|
|
// F3E8: information about the joystick and space bar
|
|
// 7 6 5 4 3 2 1 0
|
|
// | | | | +-- Space bar, trig(0) (0 = pressed)
|
|
// | | | +---------- Stick 1, Trigger 1 (0 = pressed)
|
|
// | | +------------ Stick 1, Trigger 2 (0 = pressed)
|
|
// | +-------------- Stick 2, Trigger 1 (0 = pressed)
|
|
// +---------------- Stick 2, Trigger 2 (0 = pressed)
|
|
uint8_t __at(0xf3e8) TRGFLG;
|
|
|
|
// F3E9: code for the standard foreground color (ini:15)
|
|
uint8_t __at(0xf3e9) FORCLR;
|
|
// F3EA: code for the standard background color (ini:4)
|
|
uint8_t __at(0xf3ea) BAKCLR;
|
|
// F3EB: code for the standard border color (ini:7)
|
|
uint8_t __at(0xf3eb) BDRCLR;
|
|
|
|
//Pixel lcocation
|
|
uint16_t __at(0xf92a) CLOC;
|
|
//Pixel mask
|
|
uint8_t __at(0xf92c) CMASK;
|
|
//Attribute byte for SETC
|
|
uint8_t __at(0xf3f2) ATRBYT;
|
|
//Key scan timing
|
|
uint8_t __at(0xf3f6) SCNCNT;
|
|
//Key repeat timer
|
|
uint8_t __at(0xf3f7) REPCNT;
|
|
//Address in the keyboard buffer where a character will be written
|
|
uint8_t* __at(0xf3f8) PUTPNT;
|
|
//Address in the keyboard buffer where the next character is read
|
|
uint8_t* __at(0xf3fa) GETPNT;
|
|
|
|
/// FUNCTIONS
|
|
|
|
// Reads the value of an address in another slot
|
|
void RDSLT(uint8_t slot, uint16_t addr);
|
|
// Writes a value to an address in another slot.
|
|
void WRSLT(uint8_t slot, uint16_t addr, uint8_t value);
|
|
// inhibits the screen display
|
|
void DISSCR() __z88dk_fastcall;
|
|
// displays the screen
|
|
void ENASCR() __z88dk_fastcall;
|
|
// write data in the VDP-register
|
|
void WRTVDP(uint16_t reg_data) __z88dk_fastcall;
|
|
// Reads the content of VRAM
|
|
uint8_t RDVRM(uint16_t addr) __z88dk_fastcall;
|
|
// Writes data in VRAM
|
|
void WRTVRM(uint16_t addr, uint8_t data);
|
|
// Enable VDP to read
|
|
void SETRD();
|
|
// Enable VDP to write
|
|
void SETWRT();
|
|
// fill VRAM with value
|
|
void FILVRM(uint16_t start, uint16_t len, uint8_t data);
|
|
// Block transfer to memory from VRAM
|
|
void LDIRMV(uint8_t* mdest, uint16_t vsrc, uint16_t count);
|
|
// Block transfer to VRAM from memory
|
|
void LDIRVM(uint16_t vdest, const uint8_t* msrc, uint16_t count);
|
|
// Switches to given screenmode
|
|
void CHGMOD(uint8_t mode) __z88dk_fastcall;
|
|
// Changes the screencolors
|
|
void CHGCLR() __z88dk_fastcall;
|
|
// Initialises all sprites
|
|
void CLRSPR() __z88dk_fastcall;
|
|
// Switches to SCREEN 0 (40x24 text mode)
|
|
void INITXT() __z88dk_fastcall;
|
|
// Switches to SCREEN 1 (text screen with 32*24 characters)
|
|
void INIT32() __z88dk_fastcall;
|
|
// Switches to SCREEN 2 (high resolution screen with 256*192 pixels)
|
|
void INIGRP() __z88dk_fastcall;
|
|
// Switches to SCREEN 3 (multi-color screen 64*48 pixels)
|
|
void INIMLT() __z88dk_fastcall;
|
|
// Returns the address of the sprite pattern table
|
|
uint16_t CALPAT() __z88dk_fastcall;
|
|
// Returns the address of the sprite attribute table
|
|
uint16_t CALATR() __z88dk_fastcall;
|
|
// Returns current sprite size
|
|
uint8_t GSPSIZ() __z88dk_fastcall;
|
|
// Displays a character on the graphic screen
|
|
void GRPPRT(char ch) __z88dk_fastcall;
|
|
// Initialises PSG and sets initial value for the PLAY statement
|
|
void GICINI() __z88dk_fastcall;
|
|
// Writes data to PSG-register
|
|
void WRTPSG(uint16_t reg_data) __z88dk_fastcall;
|
|
// Tests the status of the keyboard buffer
|
|
uint8_t CHSNS() __z88dk_fastcall;
|
|
// One character input (waiting)
|
|
char CHGET() __z88dk_fastcall;
|
|
// Displays one character
|
|
void CHPUT(char ch) __z88dk_fastcall;
|
|
// Sends one character to printer
|
|
void LPTOUT(char ch) __z88dk_fastcall;
|
|
// Beeps
|
|
void BEEP() __z88dk_fastcall;
|
|
// Clears the screen
|
|
void CLS() __z88dk_fastcall;
|
|
// Sets cursor X/Y position
|
|
void POSIT(uint16_t yx) __z88dk_fastcall;
|
|
// Forces the screen to be in the text mode
|
|
void TOTEXT() __z88dk_fastcall;
|
|
// Returns the joystick status
|
|
uint8_t GTSTCK(uint8_t index) __z88dk_fastcall;
|
|
// Returns current trigger status
|
|
uint8_t GTTRIG(uint8_t index) __z88dk_fastcall;
|
|
// Returns current touch pad status
|
|
uint8_t GTPAD(uint8_t index) __z88dk_fastcall;
|
|
// Returns currenct value of paddle
|
|
uint8_t GTPDL(uint8_t index) __z88dk_fastcall;
|
|
|
|
/*
|
|
void RIGHTC() __z88dk_fastcall;
|
|
void LEFTC() __z88dk_fastcall;
|
|
void UPC() __z88dk_fastcall;
|
|
uint8_t TUPC() __z88dk_fastcall;
|
|
void DOWNC() __z88dk_fastcall;
|
|
uint8_t TDOWNC() __z88dk_fastcall;
|
|
void SCALXY() __z88dk_fastcall;
|
|
*/
|
|
void MAPXY() __z88dk_fastcall;
|
|
uint16_t FETCHC_ADDR() __z88dk_fastcall;
|
|
/*
|
|
void STOREC(uint16_t addr, uint8_t mask);
|
|
void SETATR(uint8_t attr) __z88dk_fastcall;
|
|
uint8_t READC() __z88dk_fastcall;
|
|
void SETC() __z88dk_fastcall;
|
|
void NSETCX(uint16_t fillcount) __z88dk_fastcall;
|
|
*/
|
|
uint8_t RDVDP() __z88dk_fastcall;
|
|
uint8_t SNSMAT(uint8_t row) __z88dk_fastcall;
|
|
void KILBUF() __z88dk_fastcall;
|
|
|
|
// VDP colors for TMS9918A
|
|
|
|
enum MSX1_Color {
|
|
COLOR_TRANSPARENT = 0x0,
|
|
COLOR_BLACK = 0x1,
|
|
COLOR_GREEN = 0x2,
|
|
COLOR_LIGHT_GREEN = 0x3,
|
|
COLOR_BLUE = 0x4,
|
|
COLOR_LIGHT_BLUE = 0x5,
|
|
COLOR_DARK_RED = 0x6,
|
|
COLOR_CYAN = 0x7,
|
|
COLOR_RED = 0x8,
|
|
COLOR_LIGHT_RED = 0x9,
|
|
COLOR_YELLOW = 0xa,
|
|
COLOR_LIGHT_YELLOW = 0xb,
|
|
COLOR_DARK_GREEN = 0xc,
|
|
COLOR_MAGENTA = 0xd,
|
|
COLOR_GRAY = 0xe,
|
|
COLOR_WHITE = 0xf
|
|
};
|
|
|
|
// joystick positions for GTSTCK
|
|
typedef enum GTSTCK_Direction {
|
|
STCK_none = 0,
|
|
STCK_N,
|
|
STCK_NE,
|
|
STCK_E,
|
|
STCK_SE,
|
|
STCK_S,
|
|
STCK_SW,
|
|
STCK_W,
|
|
STCK_NW
|
|
};
|
|
|
|
// parameter for GTSTCK
|
|
typedef enum GTSTCK_Param {
|
|
STCK_Cursors,
|
|
STCK_Joy1,
|
|
STCK_Joy2
|
|
};
|
|
|
|
// parameter for GTTRIG
|
|
typedef enum GTTRIG_Param {
|
|
TRIG_Spacebar,
|
|
TRIG_Joy1_A,
|
|
TRIG_Joy2_A,
|
|
TRIG_Joy1_B,
|
|
TRIG_Joy2_B
|
|
};
|
|
|
|
#define VSYNC() __asm__("HALT");
|
|
|
|
#endif
|