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Improved #pragma zp_reserve in example code.

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jespergravgaard 2021-09-27 00:33:45 +02:00
parent ec78f4932c
commit 40043c195b
1 changed files with 11 additions and 1 deletions
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12
src/test/kc/cbm-keyboard.c
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@ -1,5 +1,15 @@
#pragma var_model(mem)
#pragma zp_reserve(0x91, 0x99, 0xa0, 0xa1, 0xa2, 0xc0, 0xc5, 0xc6, 0xcb, 0xcc )
#pragma zp_reserve(0x73..0x8a) // CHRGET routine: fetches next character of BASIC program text
#pragma zp_reserve(0x91) // Keyboard Flag. 127 = STOP , 223 = C= , 239 = SPACE , 251 = CTRL , 255 = no key pressed
#pragma zp_reserve(0x99) // Current input device: defaults to 0 = keyboard
#pragma zp_reserve(0xa0..0xa2) // Software jiffy clock, updated by KERNAL IRQ every 1/60 second
#pragma zp_reserve(0xc0) // Cassette motor flag 0 = off, 1 = on
#pragma zp_reserve(0xc5) // Matrix coordinate of last pressed key, 64 = none
#pragma zp_reserve(0xc6) // Number of characters in keyboard buffer
#pragma zp_reserve(0xcb) // Index to keyboard decoding table for currently pressed key, 64 = no key was depressed
#pragma zp_reserve(0xcc) // Flash cursor flag 0 = yes, otherwise no
#pragma zp_reserve(0xd0) // Input from 0 = keyboard or 3 = screen
#include <6502.h>
#include <c64.h>