Changeset 555b171 in buchla-emu

Timestamp:

07/20/2017 07:20:52 PM (7 years ago)

Author:

Thomas Lopatic <thomas@…>

Branches:

master

Children:

e41c6b6

Parents:

ba36b71

Message:

Allow access to the first 64 KiB.

File:

• emu/cpu.c (modified) (8 diffs)

emu/cpu.c

@@ -26 +26 @@
 bool cpu_verbose = false;
 
-#define CYCLES 10
-
-#define VEC_SIZE 0x400
+#define CYCLES 70
+
+#define APP_START 0x10000
 
 #define RAM_START 0x0
@@ -219 +219 @@
         }
 
-        if (addr <= VEC_SIZE - 1) {
+        if (addr <= APP_START - 1) {
                 return ram_data[addr];
         }
@@ -261 +261 @@
         }
 
-        if (addr <= VEC_SIZE - 2) {
+        if (addr <= APP_START - 2) {
                 return
                                 ((uint32_t)ram_data[addr - 0] << 8) |
@@ -327 +327 @@
         }
 
-        if (addr <= VEC_SIZE - 4) {
+        if (addr <= APP_START - 4) {
                 return
                                 ((uint32_t)ram_data[addr + 0] << 24) |
@@ -360 +360 @@
         }
 
-        if (addr <= VEC_SIZE - 1) {
+        if (addr <= APP_START - 1) {
                 ram_data[addr] = (uint8_t)val;
                 return;
@@ -392 +392 @@
         }
 
-        if (addr <= VEC_SIZE - 2) {
+        if (addr <= APP_START - 2) {
                 ram_data[addr + 0] = (uint8_t)(val >> 8);
                 ram_data[addr + 1] = (uint8_t)(val >> 0);
@@ -429 +429 @@
         }
 
-        if (addr <= VEC_SIZE - 4) {
+        if (addr <= APP_START - 4) {
                 ram_data[addr + 0] = (uint8_t)(val >> 24);
                 ram_data[addr + 1] = (uint8_t)(val >> 16);
@@ -450 +450 @@
         m68k_pulse_reset();
 
-        for (int32_t c = 0; c < 5; ++c) {
+        while (true) {
                 m68k_execute(CYCLES);
                 hw_exec();