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git-svn-id: svn://svn.cc65.org/cc65/trunk@2976 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz 2004-04-08 17:43:28 +00:00
parent 368cdbf115
commit 3d8aa8c7d8
2 changed files with 10 additions and 2 deletions
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6
include/_6522.h
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@ -35,7 +35,11 @@
/* Define a structure with the via register offsets */
/* Define a structure with the 6522 register offsets.
* NOTE: The timer registers are not declared as 16 bit registers, because
* the order in which the two 8 bit halves are written is important, and
* the compiler doesn't guarantee any order when writing 16 bit values.
*/
struct __6522 {
unsigned char prb; /* Port register B */
unsigned char pra; /* Port register A */

6
include/_6526.h
View File

@ -38,7 +38,11 @@
/* Define a structure with the 6526 register offsets */
/* Define a structure with the 6526 register offsets.
* NOTE: The timer registers are not declared as 16 bit registers, because
* the order in which the two 8 bit halves are written is important, and
* the compiler doesn't guarantee any order when writing 16 bit values.
*/
struct __6526 {
unsigned char pra; /* Port register A */
unsigned char prb; /* Port register B */