mirror of https://github.com/smartykit/apple1.git
119 lines
2.0 KiB
C
Executable File
119 lines
2.0 KiB
C
Executable File
#include "hardware_setup.h"
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#ifndef ASM_MACROS_H
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#define ASM_MACROS_H
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// delay macros
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__asm__ __volatile__ (
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// delay 1 clock cycle.
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".macro delay1\n\t"
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"nop\n"
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".endm\n"
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// delay 2 clock cycles
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".macro delay2\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 3 clock cyles
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".macro delay3\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 4 clock cylces
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".macro delay4\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 5 clock cylces
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".macro delay5\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 6 clock cylces
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".macro delay6\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 7 clock cylces
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".macro delay7\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 8 clock cylces
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".macro delay8\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 9 clock cylces
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".macro delay9\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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// delay 10 clock cylces
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".macro delay10\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n"
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".endm\n"
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);
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// common output macros, specific output macros at top of file
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__asm__ __volatile__ (
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// save port 16 and clear the video bit
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".macro svprt p\n\t"
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"in r16,\\p\n\t"
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ANDI_HWS
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".endm\n"
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// ouput 1 bit port safe
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".macro o1bs p\n\t"
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BLD_HWS
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"out \\p,r16\n"
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".endm\n"
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);
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#endif |