int testPlpImplied() {
SR = 0x20;
push8(0xBA);
ram[0] = 0x28;
instructions = 1; run();
if(!(SR&SR_NEG && !(SR&SR_OVER) && SR&SR_DEC && !(SR&SR_INT) && SR&SR_ZERO && !(SR&SR_CARRY))) return -1;
return 0;
}
/*
* Step through a single instruction in the program. Returns VM_ERR
* on an error condition (if it doesn't abort()), VM_STOP if the
* program is complete, and VM_OK if the program should keep running.
*/
int
vm_step(machine vm, uint8_t *prog, uint16_t prog_len)
{
uint16_t val;
uint8_t oper;
if (NULL == vm) {
fprintf(stderr, "[!] VM not initialised.\n");
return VM_ERR;
}
if (vm->pc == prog_len)
return VM_STOP;
oper = prog[vm->pc];
vm->pc++;
switch (oper) {
case INSTR_STOP:
return VM_STOP;
case INSTR_ADD: /* fall through: store the operator in */
case INSTR_SUB: /* the op stack */
case INSTR_DIV:
case INSTR_MUL:
push8(vm->opers, oper);
break;
case INSTR_IMM:
/* detect wrap around */
if ((prog_len - vm->pc) >= prog_len) {
fprintf(stderr, "[!] PC overflow.\n");
return VM_ERR;
}
/* ensure we have enough progspace left */
if ((prog_len - vm->pc) < 2) {
fprintf(stderr, "[!] Out of program space.\n");
fprintf(stderr, " %d bytes remain.\n",
prog_len - vm->pc);
return VM_ERR;
}
memcpy(&val, prog + vm->pc, sizeof(val));
push16(vm->vals, val);
vm->pc += 2; /* 2 bytes == 16 bits */
break;
case INSTR_DO:
return eval(vm);
default:
fprintf(stderr, "[!] Unknown operator: %d.\n", oper);
return VM_ERR;
}
return VM_OK;
}
Calculator::Calculator(QWidget *parent) :
QWidget(parent),
ui(new Ui::Calculator)
{
ui->setupUi(this);
pastNumber = 0;
currentNumber = ui->lcd->value();
state = '\0';
point = false;
in = false;
count = 0;
connect(ui->button0, SIGNAL(clicked()),
this, SLOT(push0()));
connect(ui->button1, SIGNAL(clicked()),
this, SLOT(push1()));
connect(ui->button2, SIGNAL(clicked()),
this, SLOT(push2()));
connect(ui->button3, SIGNAL(clicked()),
this, SLOT(push3()));
connect(ui->button4, SIGNAL(clicked()),
this, SLOT(push4()));
connect(ui->button5, SIGNAL(clicked()),
this, SLOT(push5()));
connect(ui->button6, SIGNAL(clicked()),
this, SLOT(push6()));
connect(ui->button7, SIGNAL(clicked()),
this, SLOT(push7()));
connect(ui->button8, SIGNAL(clicked()),
this, SLOT(push8()));
connect(ui->button9, SIGNAL(clicked()),
this, SLOT(push9()));
connect(ui->buttonDot, SIGNAL(clicked()),
this, SLOT(pushpoint()));
connect(ui->buttonCE, SIGNAL(clicked()),
this, SLOT(ce()));
connect(ui->buttonC, SIGNAL(clicked()),
this, SLOT(c()));
connect(ui->buttonPlus, SIGNAL(clicked()),
this, SLOT(pushPlus()));
connect(ui->buttonSub, SIGNAL(clicked()),
this, SLOT(pushSub()));
connect(ui->buttonTimes, SIGNAL(clicked()),
this, SLOT(pushTimes()));
connect(ui->buttonDiv, SIGNAL(clicked()),
this, SLOT(pushDiv()));
connect(ui->buttonEqual, SIGNAL(clicked()),
this, SLOT(pushEqual()));
QFont font = ui->button0->font();
font.setPointSize(40);
ui->button0->setFont(font);
ui->button1->setFont(font);
ui->button2->setFont(font);
ui->button3->setFont(font);
ui->button4->setFont(font);
ui->button5->setFont(font);
ui->button6->setFont(font);
ui->button7->setFont(font);
ui->button8->setFont(font);
ui->button9->setFont(font);
ui->buttonC->setFont(font);
ui->buttonCE->setFont(font);
ui->buttonEqual->setFont(font);
ui->buttonDiv->setFont(font);
ui->buttonTimes->setFont(font);
ui->buttonPlus->setFont(font);
ui->buttonSub->setFont(font);
ui->buttonDot->setFont(font);
}
//===== PUSH n
void sngPUSH8()
{
_u8 data = FETCH8;
push8(data);
cycles = 4;
}
