moved file-loaders into loaders.cpp/h

This commit is contained in:
folkert van heusden 2022-06-11 08:05:19 +02:00
parent 18cfbaf2d3
commit ce7343075f
4 changed files with 220 additions and 196 deletions

View file

@ -16,6 +16,7 @@ add_executable(
debugger.cpp
error.cpp
kw11-l.cpp
loaders.cpp
main.cpp
memory.cpp
rk05.cpp

205
loaders.cpp Normal file
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@ -0,0 +1,205 @@
#include <stdint.h>
#include <stdio.h>
#include <string>
#include "bus.h"
#include "cpu.h"
#include "error.h"
#include "gen.h"
#include "loaders.h"
#include "utils.h"
void loadbin(bus *const b, uint16_t base, const char *const file)
{
FILE *fh = fopen(file, "rb");
while(!feof(fh))
b -> writeByte(base++, fgetc(fh));
fclose(fh);
}
void setBootLoader(bus *const b, const bootloader_t which)
{
cpu *const c = b -> getCpu();
uint16_t offset = 0;
const uint16_t *bl = nullptr;
int size = 0;
if (which == BL_RK05) {
offset = 01000;
static uint16_t rk05_code[] = {
0012700,
0177406,
0012710,
0177400,
0012740,
0000005,
0105710,
0100376,
0005007
};
bl = rk05_code;
size = 9;
}
else if (which == BL_RL02) {
offset = 01000;
/* from https://www.pdp-11.nl/peripherals/disk/rl-info.html
static uint16_t rl02_code[] = {
0012701,
0174400,
0012761,
0000013,
0000004,
0012711,
0000004,
0105711,
0100376,
0005061,
0000002,
0005061,
0000004,
0012761,
0177400,
0000006,
0012711,
0000014,
0105711,
0100376,
0005007
};
size = 21;
*/
// from http://gunkies.org/wiki/RL11_disk_controller
static uint16_t rl02_code[] = {
0012700,
0174400,
0012760,
0177400,
0000006,
0012710,
0000014,
0105710,
0100376,
0005007,
};
size = 10;
bl = rl02_code;
}
for(int i=0; i<size; i++)
b -> writeWord(offset + i * 2, bl[i]);
c -> setRegister(7, offset);
}
uint16_t loadTape(bus *const b, const char *const file)
{
FILE *fh = fopen(file, "rb");
if (!fh) {
fprintf(stderr, "Cannot open %s\n", file);
return -1;
}
uint16_t start = 0, end = 0;
for(;!feof(fh);) {
uint8_t buffer[6];
if (fread(buffer, 1, 6, fh) != 6)
break;
int count = (buffer[3] << 8) | buffer[2];
int p = (buffer[5] << 8) | buffer[4];
uint8_t csum = 0;
for(int i=2; i<6; i++)
csum += buffer[i];
if (count == 6) { // eg no data
if (p != 1) {
D(fprintf(stderr, "Setting start address to %o\n", p);)
start = p;
}
}
D(fprintf(stderr, "%ld] reading %d (dec) bytes to %o (oct)\n", ftell(fh), count - 6, p);)
for(int i=0; i<count - 6; i++) {
if (feof(fh)) {
fprintf(stderr, "short read\n");
break;
}
uint8_t c = fgetc(fh);
csum += c;
b -> writeByte(p++, c);
if (p > end)
end = p;
}
int fcs = fgetc(fh);
csum += fcs;
if (csum != 255)
fprintf(stderr, "checksum error %d\n", csum);
}
fclose(fh);
fh = fopen("test.dat", "wb");
for(int i=0; i<end; i++)
fputc(b -> readByte(i), fh);
fclose(fh);
return start;
}
void load_p11_x11(bus *const b, const std::string & file)
{
FILE *fh = fopen(file.c_str(), "rb");
if (!fh)
error_exit(true, "Cannot open %s", file.c_str());
uint16_t addr = 0;
int n = 0;
while(!feof(fh)) {
char buffer[4096];
if (!fgets(buffer, sizeof buffer, fh))
break;
if (n) {
uint8_t byte = strtol(buffer, NULL, 16);
b->writeByte(addr, byte);
n--;
addr++;
}
else {
std::vector<std::string> parts = split(buffer, " ");
addr = strtol(parts[0].c_str(), NULL, 16);
n = strtol(parts[1].c_str(), NULL, 16);
}
}
fclose(fh);
cpu *const c = b -> getCpu();
c -> setRegister(7, 0);
}

12
loaders.h Normal file
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@ -0,0 +1,12 @@
#include <stdint.h>
#include <string>
#include "bus.h"
typedef enum { BL_NONE, BL_RK05, BL_RL02 } bootloader_t;
void loadbin(bus *const b, uint16_t base, const char *const file);
void setBootLoader(bus *const b, const bootloader_t which);
uint16_t loadTape(bus *const b, const char *const file);
void load_p11_x11(bus *const b, const std::string & file);

198
main.cpp
View file

@ -14,6 +14,7 @@
#include "debugger.h"
#include "gen.h"
#include "kw11-l.h"
#include "loaders.h"
#include "memory.h"
#include "terminal.h"
#include "tests.h"
@ -21,208 +22,13 @@
#include "utils.h"
typedef enum { BL_NONE, BL_RK05, BL_RL02 } bootloader_t;
bool withUI { false };
std::atomic_uint32_t event { 0 };
std::atomic_bool *running { nullptr };
bool trace_output { false };
void loadbin(bus *const b, uint16_t base, const char *const file)
{
FILE *fh = fopen(file, "rb");
std::atomic_bool sw { false };
while(!feof(fh))
b -> writeByte(base++, fgetc(fh));
fclose(fh);
}
void setBootLoader(bus *const b, const bootloader_t which)
{
cpu *const c = b -> getCpu();
uint16_t offset = 0;
const uint16_t *bl = nullptr;
int size = 0;
if (which == BL_RK05) {
offset = 01000;
static uint16_t rk05_code[] = {
0012700,
0177406,
0012710,
0177400,
0012740,
0000005,
0105710,
0100376,
0005007
};
bl = rk05_code;
size = 9;
}
else if (which == BL_RL02) {
offset = 01000;
/* from https://www.pdp-11.nl/peripherals/disk/rl-info.html
static uint16_t rl02_code[] = {
0012701,
0174400,
0012761,
0000013,
0000004,
0012711,
0000004,
0105711,
0100376,
0005061,
0000002,
0005061,
0000004,
0012761,
0177400,
0000006,
0012711,
0000014,
0105711,
0100376,
0005007
};
size = 21;
*/
// from http://gunkies.org/wiki/RL11_disk_controller
static uint16_t rl02_code[] = {
0012700,
0174400,
0012760,
0177400,
0000006,
0012710,
0000014,
0105710,
0100376,
0005007,
};
size = 10;
bl = rl02_code;
}
for(int i=0; i<size; i++)
b -> writeWord(offset + i * 2, bl[i]);
c -> setRegister(7, offset);
}
uint16_t loadTape(bus *const b, const char *const file)
{
FILE *fh = fopen(file, "rb");
if (!fh) {
fprintf(stderr, "Cannot open %s\n", file);
return -1;
}
uint16_t start = 0, end = 0;
for(;!feof(fh);) {
uint8_t buffer[6];
if (fread(buffer, 1, 6, fh) != 6)
break;
int count = (buffer[3] << 8) | buffer[2];
int p = (buffer[5] << 8) | buffer[4];
uint8_t csum = 0;
for(int i=2; i<6; i++)
csum += buffer[i];
if (count == 6) { // eg no data
if (p != 1) {
D(fprintf(stderr, "Setting start address to %o\n", p);)
start = p;
}
}
D(fprintf(stderr, "%ld] reading %d (dec) bytes to %o (oct)\n", ftell(fh), count - 6, p);)
for(int i=0; i<count - 6; i++) {
if (feof(fh)) {
fprintf(stderr, "short read\n");
break;
}
uint8_t c = fgetc(fh);
csum += c;
b -> writeByte(p++, c);
if (p > end)
end = p;
}
int fcs = fgetc(fh);
csum += fcs;
if (csum != 255)
fprintf(stderr, "checksum error %d\n", csum);
}
fclose(fh);
fh = fopen("test.dat", "wb");
for(int i=0; i<end; i++)
fputc(b -> readByte(i), fh);
fclose(fh);
return start;
}
void load_p11_x11(bus *const b, const std::string & file)
{
FILE *fh = fopen(file.c_str(), "rb");
if (!fh)
error_exit(true, "Cannot open %s", file.c_str());
uint16_t addr = 0;
int n = 0;
while(!feof(fh)) {
char buffer[4096];
if (!fgets(buffer, sizeof buffer, fh))
break;
if (n) {
uint8_t byte = strtol(buffer, NULL, 16);
b->writeByte(addr, byte);
n--;
addr++;
}
else {
std::vector<std::string> parts = split(buffer, " ");
addr = strtol(parts[0].c_str(), NULL, 16);
n = strtol(parts[1].c_str(), NULL, 16);
}
}
fclose(fh);
cpu *const c = b -> getCpu();
c -> setRegister(7, 0);
}
volatile bool sw = false;
void sw_handler(int s)
{
if (s == SIGWINCH)