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c128lib Base
Base macros for C128
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c128lib Base
Base macros for C128
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Cia module. More...
Functions | |
| macro | c128lib_GetFirePressedPort1 () |
| Checks if the fire button is pressed on joystick port 1. | |
| macro | c128lib_GetFirePressedPort2 () |
| Checks if the fire button is pressed on joystick port 2. | |
| macro | c128lib_DisableCIAInterrupts () |
| Disables the interrupts from both CIA chips. | |
| macro | c128lib_SetVicBank (bank) |
| Configures Vic bank (16K) which is directly addressable by VIC2 chip. | |
Cia module.
Simple macros for Cia.
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| macro c128lib_GetFirePressedPort1 | ( | ) |
Checks if the fire button is pressed on joystick port 1.
This macro checks if the fire button is pressed on joystick port 1. It loads the data from CIA1's data port B into the accumulator and then performs a bitwise AND operation with the JOY_FIRE constant.;
| macro c128lib_GetFirePressedPort2 | ( | ) |
Checks if the fire button is pressed on joystick port 2.
This macro checks if the fire button is pressed on joystick port 2. It loads the data from CIA1's data port A into the accumulator and then performs a bitwise AND operation with the JOY_FIRE constant.;
| macro c128lib_DisableCIAInterrupts | ( | ) |
Disables the interrupts from both CIA chips.
This macro disables the interrupts from both CIA chips on a Commodore 64. It loads the accumulator with the value $7F, which disables all interrupt sources, and then stores this value in the IRQ control registers of both CIA chips. It then reads the IRQ control registers to confirm the changes.
| macro c128lib_SetVicBank | ( | bank | ) |
Configures Vic bank (16K) which is directly addressable by VIC2 chip.
| [in] | bank | Bank to set |
1.11.0