AtomBusMon/firmware/regs6502.c
David Banks 58406e9d1f 6502: reduce usage of log0
Change-Id: I10b5e978d018d96a8d9bf16aebe21a1cbd07217f
2019-11-10 15:06:54 +00:00

35 lines
754 B
C

#include "AtomBusMon.h"
#define OFFSET_REG_A 32
#define OFFSET_REG_X 33
#define OFFSET_REG_Y 34
#define OFFSET_REG_P 35
#define OFFSET_REG_SP 36
#define OFFSET_REG_PC 38
char statusString[8] = "NV-BDIZC";
void doCmdRegs(char *params) {
int i;
unsigned int p = hwRead8(OFFSET_REG_P);
logstr("6502 Registers:\n A=");
loghex2(hwRead8(OFFSET_REG_A));
logstr(" X=");
loghex2(hwRead8(OFFSET_REG_X));
logstr(" Y=");
loghex2(hwRead8(OFFSET_REG_Y));
logstr(" SP=01");
loghex2(hwRead8(OFFSET_REG_SP));
logstr(" PC=");
loghex4(hwRead16(OFFSET_REG_PC));
logc('\n');
char *sp = statusString;
logstr(" Status: ");
for (i = 0; i <= 7; i++) {
logc(((p & 128) ? (*sp) : '-'));
p <<= 1;
sp++;
}
logc('\n');
}