Last change
on this file since 907 was
520,
checked in by bouyer, 11 years ago
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Re-add the tests; reverting previous which was done at the wrong level (sorry)
|
File size:
1.1 KB
|
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1 | #include <registers.h> |
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2 | /* test common subroutines |
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3 | |
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4 | .text |
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5 | /* |
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6 | * void print(char *): print a string to the multitty. |
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7 | * assumes k0 points to the tty base. |
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8 | */ |
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9 | .globl print |
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10 | print: |
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11 | .set noreorder |
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12 | move t0, a0 |
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13 | 1: |
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14 | lb t1, 0(t0); |
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15 | beq t1, zero, end |
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16 | nop |
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17 | sb t1, 0(k0) |
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18 | addiu t0, t0, 1 |
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19 | j 1b |
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20 | nop |
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21 | end: |
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22 | jr ra |
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23 | nop |
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24 | |
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25 | /* |
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26 | * void print_sync(char *): print a string to the multitty with a sync instruction for each character. |
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27 | * assumes k0 points to the tty base. |
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28 | */ |
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29 | .globl print_sync |
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30 | print_sync: |
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31 | .set noreorder |
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32 | move t0, a0 |
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33 | 1: |
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34 | lb t1, 0(t0); |
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35 | beq t1, zero, end_print_sync |
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36 | nop |
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37 | sb t1, 0(k0) |
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38 | sync |
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39 | addiu t0, t0, 1 |
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40 | j 1b |
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41 | nop |
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42 | end_print_sync: |
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43 | jr ra |
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44 | nop |
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45 | |
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46 | |
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47 | /* |
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48 | * void printx(uint32_t): print a number in hex to the multitty |
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49 | * assumes points to the tty base. |
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50 | */ |
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51 | .globl printx |
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52 | printx: |
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53 | .set noreorder |
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54 | move t0, a0 |
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55 | li t1, '0' |
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56 | sb t1, 0(k0) |
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57 | li t1, 'x' |
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58 | sb t1, 0(k0) |
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59 | li t1, 8 |
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60 | 1: |
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61 | lui t2, 0xf000; |
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62 | and t2, t0, t2 |
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63 | srl t2, t2, 28 |
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64 | slti t3, t2, 0xa |
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65 | beq t3, zero, 2f /* in range A-F */ |
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66 | nop |
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67 | addi t2, t2, '0' |
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68 | j 3f |
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69 | nop |
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70 | 2: |
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71 | addi t2, t2, 'A' - 0xa |
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72 | 3: |
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73 | sb t2, 0(k0) |
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74 | addi t1, t1, -1 |
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75 | bgtz t1, 1b |
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76 | sll t0, t0, 4 |
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77 | jr ra |
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78 | nop |
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