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Added clarifying curly braces.

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This commit is contained in:
Seth Morabito 2012-10-12 14:34:18 -07:00
parent 365809459c
commit e012d97bb3
1 changed files with 11 additions and 5 deletions
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16
src/main/java/com/loomcom/symon/Cpu.java
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@ -1289,26 +1289,32 @@ public class Cpu implements InstructionTable {
/**
* Push an item onto the stack, and decrement the stack counter.
* Silently fails to push onto the stack if SP is
* Will wrap-around if already at the bottom of the stack (This
* is the same behavior as the real 6502)
*/
void stackPush(int data) throws MemoryAccessException {
bus.write(0x100 + sp, data);
if (sp == 0)
if (sp == 0) {
sp = 0xff;
else
} else {
--sp;
}
}
/**
* Pre-increment the stack pointer, and return the top of the stack.
* Will wrap-around if already at the top of the stack (This
* is the same behavior as the real 6502)
*/
int stackPop() throws MemoryAccessException {
if (sp == 0xff)
if (sp == 0xff) {
sp = 0x00;
else
} else {
++sp;
}
return bus.read(0x100 + sp);
}