fork of PCE focusing on macplus, supporting DaynaPort SCSI network emulation
ibmpc/int13: Use 8-bit accesses to PC memory
+12
-15
+12
-15
src/arch/ibmpc/int13.c
+12
-15
src/arch/ibmpc/int13.c
···
166
166
addr += n;
167
167
}
168
168
else {
169
-
for (i = 0; i < n; i += 2) {
170
-
e86_set_mem16 (cpu, addr >> 4, addr & 0x0f, buf[i] | (buf[i + 1] << 8));
171
-
addr += 2;
169
+
for (i = 0; i < n; i++) {
170
+
e86_set_mem8 (cpu, addr >> 4, addr & 0x0f, buf[i]);
171
+
addr += 1;
172
172
}
173
173
}
174
174
}
···
179
179
static
180
180
void dsk_int13_03 (disks_t *dsks, e8086_t *cpu)
181
181
{
182
-
unsigned i, k, n;
183
-
uint32_t blk_i, blk_n;
184
-
unsigned c, h, s;
185
-
unsigned long addr;
186
-
unsigned short val;
187
-
unsigned char buf[512 * INT13_MAX_BLOCKS];
188
-
disk_t *dsk;
182
+
unsigned i, k, n;
183
+
uint32_t blk_i, blk_n;
184
+
unsigned c, h, s;
185
+
unsigned long addr;
186
+
unsigned char buf[512 * INT13_MAX_BLOCKS];
187
+
disk_t *dsk;
189
188
190
189
if ((dsk = dsks_get_disk (dsks, e86_get_dl (cpu))) == NULL) {
191
190
dsk_int13_set_status (dsks, cpu, 0x01);
···
219
218
addr += k;
220
219
}
221
220
else {
222
-
for (i = 0; i < k; i += 2) {
223
-
val = e86_get_mem16 (cpu, addr >> 4, addr & 0x0f);
224
-
buf[i + 0] = val & 0xff;
225
-
buf[i + 1] = (val >> 8) & 0xff;
226
-
addr += 2;
221
+
for (i = 0; i < k; i++) {
222
+
buf[i] = e86_get_mem8 (cpu, addr >> 4, addr & 0x0f);
223
+
addr += 1;
227
224
}
228
225
}
229
226