the10thwiz/cc65
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Changes to I/O access

Browse Source
This commit is contained in:
Wayne Parham
2021-06-09 10:23:42 -05:00
parent 2a25921515
commit 7d6541274d
8 changed files with 219 additions and 583 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
include/sym1.h
View File

@@ -91,6 +91,30 @@
#define DISP_LOW_LEFT 0x10 // Lower left segment
/*****************************************************************************/
/* Hardware */
/*****************************************************************************/
#include <_6522.h>
#define VIA1 (*(struct __6522*)0xA000) // U25
#define VIA2 (*(struct __6522*)0xA800) // U28
#define VIA3 (*(struct __6522*)0xAC00) // U29
struct _display {
unsigned char d0; // left-most seven-segment display
unsigned char d1; // second seven-segment display
unsigned char d2; // third seven-segment display
unsigned char d3; // fouth seven-segment display
unsigned char d4; // fifth seven-segment display
unsigned char d5; // sixth seven-segment display
unsigned char d6; // buffer byte to the right
};
#define DISPLAY (*(struct _display*)0xA640)
/*****************************************************************************/
/* Code */
@@ -98,55 +122,10 @@
int __fastcall__ beep (void); // Beep sound
void __fastcall__ set_D0 (unsigned char); // Set display digit 0
unsigned char __fastcall__ get_D0 (void); // Get value of display digit 0
void __fastcall__ set_D1 (unsigned char); // Set display digit 1
unsigned char __fastcall__ get_D1 (void); // Get value of display digit 1
void __fastcall__ set_D2 (unsigned char); // Set display digit 2
unsigned char __fastcall__ get_D2 (void); // Get value of display digit 2
void __fastcall__ set_D3 (unsigned char); // Set display digit 3
unsigned char __fastcall__ get_D3 (void); // Get value of display digit 3
void __fastcall__ set_D4 (unsigned char); // Set display digit 4
unsigned char __fastcall__ get_D4 (void); // Get value of display digit 4
void __fastcall__ set_D5 (unsigned char); // Set display digit 5
unsigned char __fastcall__ get_D5 (void); // Get value of display digit 5
void __fastcall__ set_D6 (unsigned char); // Set byte to the right of display (leading buffer)
unsigned char __fastcall__ get_D6 (void); // Get value of memory byte to the right of display
void __fastcall__ fdisp (void); // Flash display
int __fastcall__ loadt (int); // Read from tape (id)
int __fastcall__ dumpt (int, int, int); // Write to tape (id, start_addr, end_addr)
void __fastcall__ set_DDR1A (unsigned char); // Set data direction register 1A (U25)
unsigned char __fastcall__ get_DDR1A (void); // Get value of data direction register 1A
void __fastcall__ set_IOR1A (unsigned char); // Set I/O register 1A
unsigned char __fastcall__ get_IOR1A (void); // Get value of I/O register 1A
void __fastcall__ set_DDR1B (unsigned char); // Set data direction register 1B (U25)
unsigned char __fastcall__ get_DDR1B (void); // Get value of data direction register 1B
void __fastcall__ set_IOR1B (unsigned char); // Set I/O register 1B
unsigned char __fastcall__ get_IOR1B (void); // Get value of I/O register 1B
void __fastcall__ set_DDR2A (unsigned char); // Set data direction register 2A (U28)
unsigned char __fastcall__ get_DDR2A (void); // Get value of data direction register 2A
void __fastcall__ set_IOR2A (unsigned char); // Set I/O register 2A
unsigned char __fastcall__ get_IOR2A (void); // Get value of I/O register 2A
void __fastcall__ set_DDR2B (unsigned char); // Set data direction register 2B (U28)
unsigned char __fastcall__ get_DDR2B (void); // Get value of data direction register 2B
void __fastcall__ set_IOR2B (unsigned char); // Set I/O register 2B
unsigned char __fastcall__ get_IOR2B (void); // Get value of I/O register 2B
void __fastcall__ set_DDR3A (unsigned char); // Set data direction register 3A (U29)
unsigned char __fastcall__ get_DDR3A (void); // Get value of data direction register 3A
void __fastcall__ set_IOR3A (unsigned char); // Set I/O register 3A
unsigned char __fastcall__ get_IOR3A (void); // Get value of I/O register 3A
void __fastcall__ set_DDR3B (unsigned char); // Set data direction register 3B (U29)
unsigned char __fastcall__ get_DDR3B (void); // Get value of data direction register 3B
void __fastcall__ set_IOR3B (unsigned char); // Set I/O register 3B
unsigned char __fastcall__ get_IOR3B (void); // Get value of I/O register 3B
void beep (void); // Beep sound
void fdisp (void); // Flash display
int __fastcall__ loadt (unsigned char); // Read from tape (id)
int __fastcall__ dumpt (unsigned char, const void*, const void*); // Write to tape (id, start_addr, end_addr)