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Replace all tables by hash tables. This allows to remove the ugly special

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casing of "long addresses" and prepares the code base for use with the full
address range of the 65816.
Use fixed size data types for addresses and target data words of known size.
Many other minor improvements.
This commit is contained in:
Kugel Fuhr
2025-06-22 11:50:47 +02:00
parent 7573272836
commit b9a703749c
22 changed files with 612 additions and 443 deletions
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41
src/da65/code.c
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@@ -53,10 +53,10 @@
unsigned char CodeBuf [0x10000]; /* Code buffer */
unsigned long CodeStart; /* Start address */
unsigned long CodeEnd; /* End address */
unsigned long PC; /* Current PC */
uint8_t CodeBuf[0x10000]; /* Code buffer */
uint32_t CodeStart; /* Start address */
uint32_t CodeEnd; /* End address */
uint32_t PC; /* Current PC */
@@ -117,12 +117,13 @@ void LoadCode (void)
** 0x10000 - Size. This is a reasonable default assuming that the file
** is a ROM that contains the hardware vectors at $FFFA.
*/
if (StartAddr < 0) {
if (!HaveStartAddr) {
if (Size > 0x10000) {
StartAddr = 0;
} else {
StartAddr = 0x10000 - Size;
}
HaveStartAddr = 1;
}
/* Calculate the maximum code size */
@@ -155,7 +156,7 @@ void LoadCode (void)
unsigned char GetCodeByte (unsigned Addr)
uint8_t GetCodeByte (uint32_t Addr)
/* Get a byte from the given address */
{
PRECONDITION (Addr <= CodeEnd);
@@ -164,48 +165,48 @@ unsigned char GetCodeByte (unsigned Addr)
unsigned GetCodeDByte (unsigned Addr)
uint16_t GetCodeDByte (uint32_t Addr)
/* Get a dbyte from the given address */
{
unsigned Lo = GetCodeByte (Addr);
unsigned Hi = GetCodeByte (Addr+1);
uint16_t Lo = GetCodeByte (Addr);
uint16_t Hi = GetCodeByte (Addr+1);
return (Lo <<8) | Hi;
}
unsigned GetCodeWord (unsigned Addr)
uint16_t GetCodeWord (uint32_t Addr)
/* Get a word from the given address */
{
unsigned Lo = GetCodeByte (Addr);
unsigned Hi = GetCodeByte (Addr+1);
uint16_t Lo = GetCodeByte (Addr);
uint16_t Hi = GetCodeByte (Addr+1);
return Lo | (Hi << 8);
}
unsigned long GetCodeDWord (unsigned Addr)
uint32_t GetCodeDWord (uint32_t Addr)
/* Get a dword from the given address */
{
unsigned long Lo = GetCodeWord (Addr);
unsigned long Hi = GetCodeWord (Addr+2);
uint32_t Lo = GetCodeWord (Addr);
uint32_t Hi = GetCodeWord (Addr+2);
return Lo | (Hi << 16);
}
unsigned GetCodeLongAddr (unsigned Addr)
uint32_t GetCodeLongAddr (uint32_t Addr)
/* Get a word from the given address */
{
unsigned Lo = GetCodeByte (Addr);
unsigned Mid = GetCodeByte (Addr+1);
unsigned Hi = GetCodeByte (Addr+2);
uint32_t Lo = GetCodeByte (Addr);
uint32_t Mid = GetCodeByte (Addr+1);
uint32_t Hi = GetCodeByte (Addr+2);
return Lo | (Mid << 8) | (Hi << 16);
}
unsigned GetRemainingBytes (void)
uint32_t GetRemainingBytes (void)
/* Return the number of remaining code bytes */
{
if (CodeEnd >= PC) {