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cpu/f2mc16: Add and fix several instructions (#12427)

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qufb 2024-06-01 20:59:17 +01:00 committed by GitHub
parent 3c9f7829d9
commit 72eeb6f664
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GPG Key ID: B5690EEEBB952194
2 changed files with 1755 additions and 153 deletions
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1729
src/devices/cpu/f2mc16/f2mc16.cpp
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179
src/devices/cpu/f2mc16/f2mc16.h
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@ -66,7 +66,7 @@ private:
address_space *m_program;
u16 m_pc, m_usp, m_ssp, m_ps, m_tmp16, m_tmp16aux;
u8 m_pcb, m_dtb, m_usb, m_ssb, m_adb, m_dpr, m_tmp8, m_prefix;
u8 m_pcb, m_dtb, m_usb, m_ssb, m_adb, m_dpr, m_tmp8, m_tmp8aux, m_shifted_carry, m_prefix;
u32 m_acc, m_temp, m_tmp32, m_tmpea;
s32 m_icount;
bool m_prefix_valid;
@ -348,7 +348,7 @@ private:
inline u8 doSUB_8(u8 lhs, u8 rhs)
{
u16 tmp16 = lhs - rhs;
u16 tmp16 = u16(lhs) - u16(rhs);
setNZ_8(tmp16 & 0xff);
m_ps &= ~(F_C|F_V);
if (tmp16 & 0x100)
@ -364,7 +364,7 @@ private:
}
inline u16 doSUB_16(u16 lhs, u16 rhs)
{
u32 tmp32 = lhs - rhs;
u32 tmp32 = u32(lhs) - u32(rhs);
setNZ_16(tmp32 & 0xffff);
m_ps &= ~(F_C|F_V);
if (tmp32 & 0x10000)
@ -380,7 +380,7 @@ private:
}
inline u32 doSUB_32(u32 lhs, u32 rhs)
{
u64 tmp64 = lhs - rhs;
u64 tmp64 = u64(lhs) - u64(rhs);
setNZ_32(tmp64 & 0xffffffff);
m_ps &= ~(F_C|F_V);
if (tmp64 & 0x100000000)
@ -394,6 +394,56 @@ private:
return tmp64 & 0xffffffff;
}
inline u8 doSUBC_8(u8 lhs, u8 rhs)
{
u16 tmp16 = u16(lhs) - u16(rhs) - u16((m_ps & F_C) ? 1 : 0);
setNZ_8(tmp16 & 0xff);
m_ps &= ~(F_C|F_V);
if (tmp16 & 0x100)
{
m_ps |= F_C;
}
if ((lhs ^ rhs) & (lhs ^ (tmp16 & 0xff)) & 0x80)
{
m_ps |= F_V;
}
return tmp16 & 0xff;
}
inline u16 doSUBC_16(u16 lhs, u16 rhs)
{
u32 tmp32 = u32(lhs) - u32(rhs) - u32((m_ps & F_C) ? 1 : 0);
setNZ_16(tmp32 & 0xffff);
m_ps &= ~(F_C|F_V);
if (tmp32 & 0x10000)
{
m_ps |= F_C;
}
if ((lhs ^ rhs) & (lhs ^ (tmp32 & 0xffff)) & 0x8000)
{
m_ps |= F_V;
}
return tmp32 & 0xffff;
}
inline u32 doSUBC_32(u32 lhs, u32 rhs)
{
u64 tmp64 = u64(lhs) - u64(rhs) - u64((m_ps & F_C) ? 1 : 0);
setNZ_32(tmp64 & 0xffffffff);
m_ps &= ~(F_C|F_V);
if (tmp64 & 0x100000000)
{
m_ps |= F_C;
}
if ((lhs ^ rhs) & (lhs ^ (tmp64 & 0xffffffff)) & 0x80000000)
{
m_ps |= F_V;
}
return tmp64 & 0xffffffff;
}
inline u8 doADD_8(u8 lhs, u8 rhs)
{
u16 tmp16 = lhs + rhs;
@ -443,6 +493,55 @@ private:
return tmp64 & 0xffffffff;
}
inline u8 doADDC_8(u8 lhs, u8 rhs)
{
u16 tmp16 = lhs + rhs + ((m_ps & F_C) ? 1 : 0);
m_ps &= ~(F_C|F_V);
if ((tmp16 ^ lhs) & (tmp16 ^ rhs) & 0x80)
{
m_ps |= F_V;
}
if (tmp16 > 0xff)
{
m_ps |= F_C;
}
setNZ_8(tmp16 & 0xff);
return tmp16 & 0xff;
}
inline u16 doADDC_16(u16 lhs, u16 rhs)
{
u32 tmp32 = lhs + rhs + ((m_ps & F_C) ? 1 : 0);
m_ps &= ~(F_C|F_V);
if ((tmp32 ^ lhs) & (tmp32 ^ rhs) & 0x8000)
{
m_ps |= F_V;
}
if (tmp32 > 0xffff)
{
m_ps |= F_C;
}
setNZ_16(tmp32 & 0xffff);
return tmp32 & 0xffff;
}
inline u32 doADDC_32(u32 lhs, u32 rhs)
{
u64 tmp64 = lhs + rhs + ((m_ps & F_C) ? 1 : 0);
m_ps &= ~(F_C|F_V);
if ((tmp64 ^ lhs) & (tmp64 ^ rhs) & 0x80000000)
{
m_ps |= F_V;
}
if (tmp64 > 0xffffffff)
{
m_ps |= F_C;
}
setNZ_32(tmp64 & 0xffffffff);
return tmp64 & 0xffffffff;
}
inline u8 doINC_8(u8 val)
{
val++;
@ -518,6 +617,73 @@ private:
m_icount -= 4;
}
inline void movsi(u8 dst, u8 src)
{
if (read_rwX(0) > 0)
{
m_icount -= 4;
while (read_rwX(0) > 0)
{
u16 al = (m_acc & 0xffff);
u16 ah = (m_acc >> 16) & 0xffff;
m_tmp8 = read_8((src<<16) | al);
write_8((dst<<16) | ah, m_tmp8);
al++;
ah++;
m_acc = (ah<<16) | al;
write_rwX(0, read_rwX(0) - 1);
m_icount -= 8;
}
}
else
{
m_icount -= 5;
}
m_pc += 2;
}
inline void movswi(u8 dst, u8 src)
{
if (read_rwX(0) > 0)
{
m_icount -= 4;
while (read_rwX(0) > 0)
{
u16 al = (m_acc & 0xffff);
u16 ah = (m_acc >> 16) & 0xffff;
m_tmp16 = read_16((src<<16) | al);
write_16((dst<<16) | ah, m_tmp16);
al += 2;
ah += 2;
m_acc = (ah<<16) | al;
write_rwX(0, read_rwX(0) - 1);
m_icount -= 8;
}
}
else
{
m_icount -= 5;
}
m_pc += 2;
}
inline void filsi(u8 dst)
{
m_icount -= 6;
while (read_rwX(0) > 0)
{
u16 al = (m_acc & 0xffff);
u16 ah = (m_acc >> 16) & 0xffff;
write_8((dst<<16) | ah, al & 0xff);
ah++;
m_acc = (ah<<16) | al;
write_rwX(0, read_rwX(0) - 1);
setNZ_8(m_acc & 0xff);
m_icount -= 6;
}
m_pc += 2;
}
void opcodes_bo6c(u8 operand);
void opcodes_str6e(u8 operand);
void opcodes_2b6f(u8 operand);
@ -530,8 +696,9 @@ private:
void opcodes_ea76(u8 operand);
void opcodes_ea77(u8 operand);
void opcodes_ea78(u8 operand);
void opcodes_rwi7a(u8 operand);
void opcodes_rwi7b(u8 operand);
void opcodes_riea7a(u8 operand);
void opcodes_rwiea7b(u8 operand);
void opcodes_eari7c(u8 operand);
void set_irq(int vector, int level);
void clear_irq(int vector);