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Last change
on this file since 520 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)
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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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