mirror of
https://github.com/KarolS/millfork.git
synced 2024-12-27 19:30:04 +00:00
25 lines
1.1 KiB
Plaintext
25 lines
1.1 KiB
Plaintext
// Atari 8-bit ANTIC hardware
|
|
|
|
#if not(ATARI_8)
|
|
#warn a8_antic module should be used only on Atari computer-compatible targets
|
|
#endif
|
|
|
|
volatile byte antic_dmactl @$D400 // direct memory access control
|
|
volatile byte antic_chactl @$D401 // character mode control
|
|
volatile byte antic_dlistl @$D402 // display list pointer low-byte
|
|
volatile byte antic_dlisth @$D403 // display list pointer high-byte
|
|
volatile byte antic_hscrol @$D404 // horizontal scroll enable
|
|
volatile byte antic_vscrol @$D405 // vertical scroll enable
|
|
volatile byte antic_unuse0 @$D406 // unused
|
|
volatile byte antic_pmbase @$D407 // msb of p/m base address
|
|
volatile byte antic_unuse1 @$D408 // unused
|
|
volatile byte antic_chbase @$D409 // character base address
|
|
volatile byte antic_wsync @$D40A // wait for horizontal synchronization
|
|
volatile byte antic_vcount @$D40B // vertical line counter
|
|
volatile byte antic_penh @$D40C // light pen horizontal position
|
|
volatile byte antic_penv @$D40D // light pen vertical position
|
|
volatile byte antic_nmien @$D40E // non-maskable interrupt enable
|
|
|
|
// nmi reset status
|
|
volatile byte antic_nmires @$D40F
|