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Move all host examples under host/

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This commit is contained in:
Toby Jaffey 2025-12-11 12:57:59 +00:00
parent 1213c5673f
commit 7353810199
16 changed files with 104 additions and 143 deletions
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73
hosts/host-arduino/host-arduino.ino Normal file
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#include "config.h"
#include "uvm32.h"
#include "uvm32_common_custom.h"
#include "mandel.h"
uvm32_state_t vmst;
uvm32_evt_t evt;
bool isrunning = false;
uint32_t led_time = 0;
bool led_state = false;
void setup(void) {
Serial.begin(115200);
pinMode(LED_BUILTIN, OUTPUT);
isrunning = false;
}
void loop(void) {
// flash LED rapidly to show main loop is still running
if (millis() > led_time + 50) {
digitalWrite(LED_BUILTIN, led_state);
led_state = !led_state;
led_time = millis();
}
if (isrunning) {
uvm32_run(&vmst, &evt, 0xFFFFFFFF); // num instructions before vm considered hung
switch(evt.typ) {
case UVM32_EVT_END:
isrunning = false;
break;
case UVM32_EVT_SYSCALL: // vm has paused to handle UVM32_SYSCALL
switch(evt.data.syscall.code) {
case UVM32_SYSCALL_YIELD:
break;
case UVM32_SYSCALL_PUTC:
Serial.print((char)uvm32_getval(&vmst, &evt, ARG0));
break;
case UVM32_SYSCALL_PRINTLN: {
const char *str = uvm32_getcstr(&vmst, &evt, ARG0);
Serial.print(str);
Serial.println("");
} break;
case UVM32_SYSCALL_PRINT: {
const char *str = uvm32_getcstr(&vmst, &evt, ARG0);
Serial.print(str);
} break;
case UVM32_SYSCALL_MILLIS: {
uvm32_setval(&vmst, &evt, RET, millis());
} break;
default:
Serial.print("Unhandled syscall: ");
Serial.print(evt.data.syscall.code);
Serial.println("");
break;
}
break;
case UVM32_EVT_ERR:
Serial.print("Error: ");
Serial.println(evt.data.err.errstr);
isrunning = false;
break;
}
} else {
Serial.println("Running VM");
// setup vm
uvm32_init(&vmst);
uvm32_load(&vmst, mandel, mandel_len);
isrunning = true;
}
}