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annotate test_arm.c @ 1971:80920c21bb52

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Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
author Michael Pavone <pavone@retrodev.com>
date Fri, 08 May 2020 11:40:30 -0700
parents 474270dbff15
children
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1af6c1052993 Added untested code for generating ARM machine code
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1 #include <stdio.h>
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2 #include "gen_arm.h"
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3
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4 typedef int32_t (*fib_fun)(int32_t);
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5
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6 int main(int arc, char **argv)
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7 {
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8 code_info code;
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9 init_code_info(&code);
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10 uint32_t *fib = code.cur;
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11 subi(&code, r0, r0, 2, SET_COND);
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12 movi_cc(&code, r0, 1, NO_COND, CC_LT);
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13 bx_cc(&code, lr, CC_LT);
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14 pushm(&code, LR | R4);
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15 mov(&code, r4, r0, NO_COND);
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16 bl(&code, fib);
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17 mov(&code, r1, r0, NO_COND);
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18 addi(&code, r0, r4, 1, NO_COND);
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19 mov(&code, r4, r1, NO_COND);
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20 bl(&code, fib);
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21 add(&code, r0, r4, r0, NO_COND);
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22 popm(&code, LR | R4);
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474270dbff15 Fix ARM code generation and test program
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23 bx(&code, lr);
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24
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25 fib_fun fibc = (fib_fun)fib;
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26 printf("fib(10): %d\n", fibc(10));
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27
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28 return 0;
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29 }