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Firmware: better implementation of next command

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Change-Id: I4643649a152987d8921af30a71d88aed48c06d0d
This commit is contained in:
David Banks 2019-10-29 16:30:58 +00:00
parent 3a5b0e46e2
commit ae62114b32
1 changed files with 21 additions and 4 deletions
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25
firmware/AtomBusMon.c
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@ -395,6 +395,9 @@ unsigned int memAddr = 0;
// The address of the next instruction
unsigned int nextAddr = 0;
// The address of the transient breakpoint
unsigned int transientAddr = 0xffff;
// When single stepping, trace (i.e. log) event N instructions
// Setting this to 0 will disable logging
long trace;
@ -724,10 +727,8 @@ void version() {
********************************************************/
// Return the index of a breakpoint from the user specified address
int lookupBreakpoint(char *params) {
int lookupBreakpointN(int n) {
int i;
int n = -1;
sscanf(params, "%x", &n);
// First, look assume n is an address, and try to map to an index
for (i = 0; i < numbkpts; i++) {
if (breakpoints[i] == n) {
@ -742,6 +743,12 @@ int lookupBreakpoint(char *params) {
return -1;
}
int lookupBreakpoint(char *params) {
int n = -1;
sscanf(params, "%x", &n);
return lookupBreakpointN(n);
}
// Enable/Disable single stepping
void setSingle(int single) {
hwCmd(CMD_SINGLE_ENABLE, single ? 1 : 0);
@ -1296,9 +1303,9 @@ void doCmdNext(char *params) {
logTooManyBreakpoints();
return;
}
transientAddr = nextAddr;
setBreakpoint(numbkpts++, nextAddr, 0xffff, 1 << BRKPT_EXEC, TRIGGER_ALWAYS);
doCmdContinue(params);
clearBreakpoint(numbkpts - 1);
}
void doCmdContinue(char *params) {
@ -1367,6 +1374,16 @@ void doCmdContinue(char *params) {
// Show current instruction
logAddr();
// Check if we have hit the transient breakpoint
if (memAddr == transientAddr) {
// Attempt to remove the transient breakpoint
int n = lookupBreakpointN(transientAddr);
if (n >= 0) {
clearBreakpoint(n);
}
transientAddr = 0xFFFF;
}
}
void initialize() {