source: buchla-68k/vlib/vputs.c@ 4b63bf3

Last change on this file since 4b63bf3 was 8c8b4e5, checked in by Thomas Lopatic <thomas@…>, 7 years ago

More volatile hardware accesses.

  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 =============================================================================
3 vputs.c -- video display string put functions
4 Version 2 -- 1987-03-30 -- D.N. Lynx Crowe
5 (c) Copyright 1987 -- D.N. Lynx Crowe
6
7 These functions drive the video character write function vputc()
8 which puts characters into a 82716 video RAM character object.
9
10 Full attribute format is assumed.
11 =============================================================================
12*/
13
14#include "ram.h"
15
16/*
17 =============================================================================
18 vputs(obase, row, col, str, attrib)
19
20 Write string str to video RAM object pointed to by obase
21 at (row,col) with attr used for all characters.
22 =============================================================================
23*/
24
25void vputs(volatile uint16_t *obase, int16_t row, int16_t col, int8_t *str, uint16_t attr)
26{
27 int16_t c;
28
29 while ((c = *str++)) {
30
31 vputc(obase, row, col, c, attr);
32
33 if (++col GE 64) {
34
35 col = 0;
36
37 if (++row GE 25)
38 row = 0;
39 }
40 }
41}
42
43/*
44 =============================================================================
45 vputsa(obase, row, col, str, attrib)
46
47 Write string str in video RAM pointed to by obase starting
48 at (row, col) using attributes from the words pointed to by attr.
49 =============================================================================
50*/
51
52void vputsa(volatile uint16_t *obase, int16_t row, int16_t col, int8_t *str, uint16_t *attr)
53{
54 int16_t c;
55
56 while ((c = *str++)) {
57
58 vputc(obase, row, col, c, *attr++);
59
60 if (++col GE 64) {
61
62 col = 0;
63
64 if (++row GE 25)
65 row = 0;
66 }
67 }
68}
69
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