Move to C++ completely

1 files changed, 0 insertions, 209 deletions

diff --git a/bus.c b/bus.c
deleted file mode 100644
index 64a8ac9..0000000
--- a/bus.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/* SPDX-License-Identifier: Unlicense
- */
-
-#include "bus.h"
-
-#include <assert.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-
-#include "musashi-m68k/m68k.h"
-
-unsigned char g_rom[ROM_SIZE] = {0};
-unsigned char g_ram[RAM_SIZE] = {0};
-unsigned char g_io1[IO1_SIZE] = {0};
-unsigned char g_io2[IO2_SIZE] = {0};
-
-static void exit_error(char* fmt, ...)
-{
-    va_list args;
-    va_start(args, fmt);
-    vfprintf(stderr, fmt, args);
-    va_end(args);
-    fprintf(stderr, "\n");
-    unsigned int pc = m68k_get_reg(NULL, M68K_REG_PPC);
-    char buff[100];
-    m68k_disassemble(buff, pc, M68K_CPU_TYPE_68000);
-    fprintf(stderr, "%08x: %s\n", pc, buff);
-    exit(EXIT_FAILURE);
-}
-
-static inline bool is_in_range(uint32_t value, uint32_t begin, uint32_t length)
-{
-    return value >= begin && value <= begin + length;
-}
-
-enum bitness {
-    BITNESS_8,
-    BITNESS_16,
-    BITNESS_32,
-};
-
-struct read_result {
-    unsigned int result;
-    bool successful;
-};
-
-static inline unsigned int memory_read_concrete(
-        enum bitness bitness,
-        unsigned char const * base,
-        unsigned int address)
-{
-    switch (bitness) {
-    case BITNESS_8:
-        return base[address];
-    case BITNESS_16:
-        return (base[address] << 8) | base[address + 1];
-    case BITNESS_32:
-        return (base[address] << 24) |
-            (base[address + 1] << 16) |
-            (base[address + 2] << 8) |
-            base[address + 3];
-    }
-    __builtin_unreachable();
-}
-
-static inline struct read_result memory_read(
-        enum bitness bitness,
-        unsigned int address)
-{
-    if (is_in_range(address, ROM_START, ROM_SIZE))
-        return (struct read_result){
-            memory_read_concrete(bitness, g_rom, address - ROM_START),
-            true,
-        };
-    else if (is_in_range(address, RAM_START, RAM_SIZE))
-        return (struct read_result){
-            memory_read_concrete(bitness, g_ram, address - RAM_START),
-            true,
-        };
-    else if (is_in_range(address, IO1_START, IO1_SIZE))
-        return (struct read_result){
-            memory_read_concrete(bitness, g_io1, address - IO1_START),
-            true,
-        };
-    else if (is_in_range(address, IO2_START, IO2_SIZE))
-        return (struct read_result){
-            memory_read_concrete(bitness, g_io2, address - IO2_START),
-            true,
-        };
-    return (struct read_result){0, false};
-}
-
-static inline void memory_write_concrete(
-        enum bitness bitness,
-        unsigned char * base,
-        unsigned int address,
-        unsigned int value)
-{
-    switch (bitness) {
-    case BITNESS_8:
-        base[address] = value & 0xff;
-        break;
-    case BITNESS_16:
-        base[address + 0] = (value >> 8) & 0xff;
-        base[address + 1] = value & 0xff;
-        break;
-    case BITNESS_32:
-        base[address + 0] = (value >> 24) & 0xff;
-        base[address + 1] = (value >> 16) & 0xff;
-        base[address + 2] = (value >> 8) & 0xff;
-        base[address + 3] = value & 0xff;
-        break;
-    }
-}
-
-static inline bool memory_write(
-        enum bitness bitness,
-        unsigned int address,
-        unsigned int value)
-{
-    if (is_in_range(address, ROM_START, ROM_SIZE)) {
-        memory_write_concrete(bitness, g_rom, address - ROM_START, value);
-        return true;
-    } else if (is_in_range(address, RAM_START, RAM_SIZE)) {
-        memory_write_concrete(bitness, g_ram, address - RAM_START, value);
-        return true;
-    } else if (is_in_range(address, IO1_START, IO1_SIZE)) {
-        memory_write_concrete(bitness, g_io1, address - IO1_START, value);
-        return true;
-    } else if (is_in_range(address, IO2_START, IO2_SIZE)) {
-        memory_write_concrete(bitness, g_io2, address - IO2_START, value);
-        return true;
-    }
-    return false;
-}
-
-#define MASK_24(X) ((X) & (0xFF << 24))
-
-unsigned int m68k_read_memory_8(unsigned int address)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const struct read_result ret = memory_read(BITNESS_8, address);
-    if (!ret.successful)
-        exit_error("Read error u8 @%08x", address);
-    return ret.result;
-}
-
-unsigned int m68k_read_memory_16(unsigned int address)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const struct read_result ret = memory_read(BITNESS_16, address);
-    if (!ret.successful)
-        exit_error("Read error u16 @%08x", address);
-    return ret.result;
-}
-
-unsigned int m68k_read_memory_32(unsigned int address)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const struct read_result ret = memory_read(BITNESS_32, address);
-    if (!ret.successful)
-        exit_error("Read error u32 @%08x", address);
-    return ret.result;
-}
-
-unsigned int m68k_read_disassembler_16(unsigned int address)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const struct read_result ret = memory_read(BITNESS_16, address);
-    if (!ret.successful)
-        exit_error("Disasm read error u16 @0x%08x", address);
-    return ret.result;
-}
-
-unsigned int m68k_read_disassembler_32(unsigned int address)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const struct read_result ret = memory_read(BITNESS_32, address);
-    if (!ret.successful)
-        exit_error("Disasm read error u32 @0x%08x", address);
-    return ret.result;
-}
-
-void m68k_write_memory_8(unsigned int address, unsigned int value)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const bool successful = memory_write(BITNESS_8, address, value);
-    if (!successful)
-        exit_error("Attempted to write %02x (u8) to address %08x", value&0xff, address);
-}
-
-void m68k_write_memory_16(unsigned int address, unsigned int value)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const bool successful = memory_write(BITNESS_16, address, value);
-    if (!successful)
-        exit_error("Attempted to write %04x (u16) to address %08x", value&0xffff, address);
-}
-
-void m68k_write_memory_32(unsigned int address, unsigned int value)
-{
-    assert(MASK_24(address) == 0); // Just curious
-    const bool successful = memory_write(BITNESS_16, address, value);
-    if (!successful)
-        exit_error("Attempted to write %08x (u32) to address %08x", value, address);
-}