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faster compare

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!(~(ab)&0x3) and ab == 0x3 are equal
2.0.x
wurstnase 10 years ago
parent 04a1622172
commit 94120740d8
1 changed files with 4 additions and 5 deletions
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9
Marlin/stepper.cpp
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@ -566,8 +566,8 @@ ISR(TIMER1_COMPA_vect) {
if (z_test && current_block->steps[Z_AXIS] > 0) { // z_test = Z_MIN || Z2_MIN
endstops_trigsteps[Z_AXIS] = count_position[Z_AXIS];
endstop_hit_bits |= BIT(Z_MIN);
if (!performing_homing || (performing_homing && !((~z_test) & 0x3))) //if not performing home or if both endstops were trigged during homing...
step_events_completed = current_block->step_event_count; //!((~z_test) & 0x3) = Z_MIN && Z2_MIN
if (!performing_homing || (performing_homing && z_test == & 0x3))) //if not performing home or if both endstops were trigged during homing...
step_events_completed = current_block->step_event_count;
}
#else // !Z_DUAL_ENDSTOPS
@ -577,7 +577,6 @@ ISR(TIMER1_COMPA_vect) {
#ifdef Z_PROBE_ENDSTOP
UPDATE_ENDSTOP(Z, PROBE);
SET_ENDSTOP_BIT(Z, PROBE);
if (TEST_ENDSTOP(Z_PROBE))
{
@ -603,8 +602,8 @@ ISR(TIMER1_COMPA_vect) {
if (z_test && current_block->steps[Z_AXIS] > 0) { // t_test = Z_MAX || Z2_MAX
endstops_trigsteps[Z_AXIS] = count_position[Z_AXIS];
endstop_hit_bits |= BIT(Z_MIN);
if (!performing_homing || (performing_homing && !((~z_test) & 0x3))) //if not performing home or if both endstops were trigged during homing...
step_events_completed = current_block->step_event_count; //!((~z_test) & 0x3) = Z_MAX && Z2_MAX
if (!performing_homing || (performing_homing && z_test == 0x3))) //if not performing home or if both endstops were trigged during homing...
step_events_completed = current_block->step_event_count;
}
#else // !Z_DUAL_ENDSTOPS

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