#include "sux.h"
#include "disasm.h"

void disasm(struct sux *cpu, uint64_t *operands, uint8_t lines, uint8_t opcode, uint8_t prefix, uint8_t thread) {
	uint64_t value   = operands[0];
	uint64_t address = operands[1];
	uint64_t tmpaddr = operands[2];
	char postfix[3];
	char op[4];
	op[0] = opname[opcode][0];
	op[1] = opname[opcode][1];
	op[2] = opname[opcode][2];
	op[3] = '\0';
	switch(1 << (prefix >> 4)) {
		case 1: postfix[0] =   0; postfix[1] =   0; postfix[2] = 0; break;
		case 2: postfix[0] = '.'; postfix[1] = 'W'; postfix[2] = 0; break;
		case 4: postfix[0] = '.'; postfix[1] = 'D'; postfix[2] = 0; break;
		case 8: postfix[0] = '.'; postfix[1] = 'Q'; postfix[2] = 0; break;
	}
	switch (optype[opcode]) {
		case IMPL: wprintw(scr, "%s\r" , opname[opcode]); break;
		case IMM:
			switch(1 << (prefix >> 4)) {
				case 1: wprintw(scr, "%s #$%02X\r" , op, value); break;
				case 2: wprintw(scr, "%s%s #$%04X\r" , op, postfix, value); break;
				case 4: wprintw(scr, "%s%s #$%08X\r" , op, postfix, value); break;
				case 8: wprintw(scr, "%s%s #$%016"PRIX64"\r" , op, postfix, value); break;
			}
			break;
		case ZM:
		case ZMX:
		case ZMY:
			switch (optype[opcode]) {
				case ZMX: tmpaddr = address - cpu->x[thread]; break;
				case ZMY: tmpaddr = address - cpu->y[thread]; break;
			}
			switch ((prefix & 0x0C) >> 2) {
				case 3: wprintw(scr, "%s%s $%08X%s\r" , op, postfix, tmpaddr, (optype[opcode] == ZM) ? "" : ((optype[opcode] == ZMX) ? ", x" : ", y")); break;
				case 2: wprintw(scr, "%s%s $%014"PRIX64"%s\r" , op, postfix, tmpaddr, (optype[opcode] == ZM) ? "" : ((optype[opcode] == ZMX) ? ", x" : ", y")); break;
				case 1: wprintw(scr, "%s%s $%06X%s\r" , op, postfix, tmpaddr, (optype[opcode] == ZM) ? "" : ((optype[opcode] == ZMX) ? ", x" : ", y")); break;
				case 0: wprintw(scr, "%s%s $%02X%s\r" , op, postfix, tmpaddr, (optype[opcode] == ZM) ? "" : ((optype[opcode] == ZMX) ? ", x" : ", y")); break;
			}
			break;
		case IND:
		case INDX:
		case INDY:
			switch ((prefix & 0x0C) >> 2) {
				case 3: wprintw(scr, "%s%s ($%08X%s\r" , op, postfix, tmpaddr, (optype[opcode] == IND) ? ")" : ((optype[opcode] == INDX) ? ", x)" : "), y")); break;
				case 2: wprintw(scr, "%s%s ($%012"PRIX64"%s\r" , op, postfix, tmpaddr, (optype[opcode] == IND) ? ")" : ((optype[opcode] == INDX) ? ", x)" : "), y")); break;
				case 1: wprintw(scr, "%s%s ($%06X%s\r" , op, postfix, tmpaddr, (optype[opcode] == IND) ? ")" : ((optype[opcode] == INDX) ? ", x)" : "), y")); break;
				case 0: wprintw(scr, "%s%s ($%02X%s\r" , op, postfix, tmpaddr, (optype[opcode] == IND) ? ")" : ((optype[opcode] == INDX) ? ", x)" : "), y")); break;
			}
			break;
		case ABS:
			tmpaddr = address;
			switch ((prefix & 0x0C) >> 2) {
				case 3: wprintw(scr, "%s%s $%016"PRIX64"\r" , op, postfix, tmpaddr);	break;
				case 2: wprintw(scr, "%s%s $%014"PRIX64"\r" , op, postfix, tmpaddr);	break;
				case 1: wprintw(scr, "%s%s $%010"PRIX64"\r" , op, postfix, tmpaddr);	break;
				case 0: wprintw(scr, "%s%s $%04" PRIX64"\r" , op, postfix, tmpaddr);	break;
			}
			break;
	}

	if (address == TX_ADDR || address == RX_ADDR) {
		wmove(scr, 27, 0);
		wprintw(scr, "TX_ADDR: $%02X, RX_ADDR: $%02X", addr[TX_ADDR], addr[RX_ADDR]);
	}
	if (subdbg) {
		uint8_t ln = 33;
		uint16_t line_idx = 0;
		uint32_t tmpad = 0x31000;
		int row, col;
		uint8_t iscursor = 0;
		union reg ptr;
		uint32_t adr;
		wmove(scr, 30, 0);
		wclrtoeol(scr);
		adr = 0x25;
		ptr.u8[0] = addr[adr+0]; ptr.u8[1] = addr[adr+1];
		ptr.u8[2] = addr[adr+2]; ptr.u8[3] = addr[adr+3];
		ptr.u8[4] = addr[adr+4]; ptr.u8[5] = addr[adr+5];
		ptr.u8[6] = addr[adr+6]; ptr.u8[7] = addr[adr+7];
		wprintw(scr, "ptr1: $%04"PRIX64, ptr.u64);
		adr = 0x2D;
		ptr.u8[0] = addr[adr+0]; ptr.u8[1] = addr[adr+1];
		ptr.u8[2] = addr[adr+2]; ptr.u8[3] = addr[adr+3];
		ptr.u8[4] = addr[adr+4]; ptr.u8[5] = addr[adr+5];
		ptr.u8[6] = addr[adr+6]; ptr.u8[7] = addr[adr+7];
		wprintw(scr, ", ptr2: $%04"PRIX64, ptr.u64);
		adr = 0x35;
		ptr.u8[0] = addr[adr+0]; ptr.u8[1] = addr[adr+1];
		ptr.u8[2] = addr[adr+2]; ptr.u8[3] = addr[adr+3];
		ptr.u8[4] = addr[adr+4]; ptr.u8[5] = addr[adr+5];
		ptr.u8[6] = addr[adr+6]; ptr.u8[7] = addr[adr+7];
		wprintw(scr, ", ptr3: $%04"PRIX64, ptr.u64);
		adr = 0x3349A;
		ptr.u8[0] = addr[adr+0]; ptr.u8[1] = addr[adr+1];
		ptr.u8[2] = addr[adr+2]; ptr.u8[3] = addr[adr+3];
		ptr.u8[4] = addr[adr+4]; ptr.u8[5] = addr[adr+5];
		ptr.u8[6] = addr[adr+6]; ptr.u8[7] = addr[adr+7];
		wprintw(scr, ", idx0: $%04"PRIX64, ptr.u64);
		if (address == CTRL_ADDR || addr[STEP_ADDR]) {
			mvwprintw(scr, 29, 0, "address: $%04"PRIX64", scr_row: %02u, scr_col: %02u, scr_str: %02u, scr_end: %02u\r", address, addr[0], addr[1], addr[0x22], addr[0x23]);
			adr = 0x30000;
			wmove(scr, 32, 0);
			wprintw(scr, "bitabl: ");
			for (uint8_t i = 0; i < 16; i++) {
				wprintw(scr, "%02X", addr[adr+i]);
			}
			mvwprintw(scr, ln++, 0, "buffer:\r");
			wmove(scr, ln++, 0);
			for (uint8_t i = 0; i < 10; i++) {
				line_idx = (i << 6) + (i << 4);
				for (uint8_t j = 0; j < 0x50; j++) {
					wprintw(scr, "%02X", addr[tmpad+j+line_idx]);
						if ((addr[0]+addr[0x22]) == i && addr[1] == j) {
							iscursor=1;
							getyx(scr,row, col);
							wmove(scr, ln++, 0);
							wclrtoeol(scr);
							wmove(scr, row+1, col-2);
							wprintw(scr, "/\\\r");
							wmove(scr, row, col);
						}
				}
				wprintw(scr, ", i: %02X", i);
				if (!iscursor) {
					wmove(scr, ln, 0);
					wclrtoeol(scr);
				}
				iscursor = 0;
				wmove(scr, ln++, 0);
			}
		}
		/*if (address == 0x4000 || tmpaddr == 0x4000 || addr[STEP_ADDR]) {
			ln = 46;
			tmpad = 0x4000;
			line_idx = 0;
			mvwprintw(scr, ln++, 0, "cmd_buf:");
			for (uint8_t i = 0; i < 5; i++) {
				wmove(scr, ln++, 0);
				line_idx = (i << 4)+(i << 6);
				for (uint8_t j = 0; j < 0x50; j++) {
					wprintw(scr, "%02X", addr[tmpad+j+line_idx]);
				}
				wprintw(scr, ", i: %02X", i);
			}
		}*/
	}
}