aboutsummaryrefslogtreecommitdiff
path: root/source/fxinst.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/fxinst.c')
-rw-r--r--source/fxinst.c665
1 files changed, 416 insertions, 249 deletions
diff --git a/source/fxinst.c b/source/fxinst.c
index 4ec1e01..86ccd38 100644
--- a/source/fxinst.c
+++ b/source/fxinst.c
@@ -12,7 +12,7 @@ int32_t gsu_bank [512] = {0};
/* Codes used:
*
- * rn = a GSU register (r0-r15)
+ * rn = a GSU register (r0 - r15)
* #n = 4 bit immediate value
* #pp = 8 bit immediate value
* (yy) = 8 bit word address (0x0000 - 0x01fe)
@@ -57,8 +57,8 @@ static void fx_cache()
GSU.vCacheBaseReg = c;
GSU.bCacheActive = true;
}
- R15++;
CLRFLAGS;
+ R15++;
}
/* 03 - lsr - logic shift right */
@@ -98,7 +98,14 @@ static void fx_bra()
}
/* Branch on condition */
-#define BRA_COND(cond) uint8_t v = PIPE; R15++; FETCHPIPE; if(cond) R15 += SEX8(v); else R15++;
+#define BRA_COND(cond) \
+ uint8_t v = PIPE; \
+ R15++; \
+ FETCHPIPE; \
+ if (cond) \
+ R15 += SEX8(v); \
+ else \
+ R15++
#define TEST_S (GSU.vSign & 0x8000)
#define TEST_Z (USEX16(GSU.vZero) == 0)
@@ -168,14 +175,38 @@ static void fx_bvs()
/* 10-1f - to rn - set register n as destination register */
/* 10-1f(B) - move rn - move one register to another (if B flag is set) */
#define FX_TO(reg) \
-if(TF(B)) { GSU.avReg[(reg)] = SREG; CLRFLAGS; } \
-else { GSU.pvDreg = &GSU.avReg[reg]; } R15++;
+ if (TF(B)) \
+ { \
+ GSU.avReg[(reg)] = SREG; \
+ CLRFLAGS; \
+ } \
+ else \
+ GSU.pvDreg = &GSU.avReg[reg]; \
+ R15++
+
#define FX_TO_R14(reg) \
-if(TF(B)) { GSU.avReg[(reg)] = SREG; CLRFLAGS; READR14; } \
-else { GSU.pvDreg = &GSU.avReg[reg]; } R15++;
+ if (TF(B)) \
+ { \
+ GSU.avReg[(reg)] = SREG; \
+ CLRFLAGS; \
+ READR14; \
+ } \
+ else \
+ GSU.pvDreg = &GSU.avReg[reg]; \
+ R15++
+
#define FX_TO_R15(reg) \
-if(TF(B)) { GSU.avReg[(reg)] = SREG; CLRFLAGS; } \
-else { GSU.pvDreg = &GSU.avReg[reg]; R15++; }
+ if (TF(B)) \
+ { \
+ GSU.avReg[(reg)] = SREG; \
+ CLRFLAGS; \
+ } \
+ else \
+ { \
+ GSU.pvDreg = &GSU.avReg[reg]; \
+ R15++; \
+ }
+
static void fx_to_r0()
{
FX_TO(0);
@@ -242,7 +273,11 @@ static void fx_to_r15()
}
/* 20-2f - to rn - set register n as source and destination register */
-#define FX_WITH(reg) SF(B); GSU.pvSreg = GSU.pvDreg = &GSU.avReg[reg]; R15++;
+#define FX_WITH(reg) \
+ SF(B); \
+ GSU.pvSreg = GSU.pvDreg = &GSU.avReg[reg]; \
+ R15++
+
static void fx_with_r0()
{
FX_WITH(0);
@@ -310,10 +345,12 @@ static void fx_with_r15()
/* 30-3b - stw (rn) - store word */
#define FX_STW(reg) \
-GSU.vLastRamAdr = GSU.avReg[reg]; \
-RAM(GSU.avReg[reg]) = (uint8_t)SREG; \
-RAM(GSU.avReg[reg]^1) = (uint8_t)(SREG>>8); \
-CLRFLAGS; R15++
+ GSU.vLastRamAdr = GSU.avReg[reg]; \
+ RAM(GSU.avReg[reg]) = (uint8_t) SREG; \
+ RAM(GSU.avReg[reg] ^ 1) = (uint8_t) (SREG >> 8); \
+ CLRFLAGS; \
+ R15++
+
static void fx_stw_r0()
{
FX_STW(0);
@@ -365,9 +402,11 @@ static void fx_stw_r11()
/* 30-3b(ALT1) - stb (rn) - store byte */
#define FX_STB(reg) \
-GSU.vLastRamAdr = GSU.avReg[reg]; \
-RAM(GSU.avReg[reg]) = (uint8_t)SREG; \
-CLRFLAGS; R15++
+ GSU.vLastRamAdr = GSU.avReg[reg]; \
+ RAM(GSU.avReg[reg]) = (uint8_t) SREG; \
+ CLRFLAGS; \
+ R15++
+
static void fx_stb_r0()
{
FX_STB(0);
@@ -425,7 +464,6 @@ static void fx_loop()
R15 = R13;
else
R15++;
-
CLRFLAGS;
}
@@ -455,13 +493,16 @@ static void fx_alt3()
}
/* 40-4b - ldw (rn) - load word from RAM */
-#define FX_LDW(reg) uint32_t v; \
-GSU.vLastRamAdr = GSU.avReg[reg]; \
-v = (uint32_t)RAM(GSU.avReg[reg]); \
-v |= ((uint32_t)RAM(GSU.avReg[reg]^1))<<8; \
-R15++; DREG = v; \
-TESTR14; \
-CLRFLAGS
+#define FX_LDW(reg) \
+ uint32_t v; \
+ GSU.vLastRamAdr = GSU.avReg[reg]; \
+ v = (uint32_t) RAM(GSU.avReg[reg]); \
+ v |= ((uint32_t) RAM(GSU.avReg[reg] ^ 1)) << 8; \
+ R15++; \
+ DREG = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_ldw_r0()
{
FX_LDW(0);
@@ -512,12 +553,15 @@ static void fx_ldw_r11()
}
/* 40-4b(ALT1) - ldb (rn) - load byte */
-#define FX_LDB(reg) uint32_t v; \
-GSU.vLastRamAdr = GSU.avReg[reg]; \
-v = (uint32_t)RAM(GSU.avReg[reg]); \
-R15++; DREG = v; \
-TESTR14; \
-CLRFLAGS
+#define FX_LDB(reg) \
+ uint32_t v; \
+ GSU.vLastRamAdr = GSU.avReg[reg]; \
+ v = (uint32_t) RAM(GSU.avReg[reg]); \
+ R15++; \
+ DREG = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_ldb_r0()
{
FX_LDB(0);
@@ -580,18 +624,23 @@ static void fx_plot_2bit()
R1++;
if (GSU.vPlotOptionReg & 0x02)
- c = (x ^ y) & 1 ? (uint8_t)(GSU.vColorReg >> 4) : (uint8_t)GSU.vColorReg;
+ c = (x ^ y) & 1 ? (uint8_t) (GSU.vColorReg >> 4) : (uint8_t)GSU.vColorReg;
else
- c = (uint8_t)GSU.vColorReg;
+ c = (uint8_t) GSU.vColorReg;
- if (!(GSU.vPlotOptionReg & 0x01) && !(c & 0xf)) return;
+ if (!(GSU.vPlotOptionReg & 0x01) && !(c & 0xf))
+ return;
a = GSU.apvScreen[y >> 3] + GSU.x[x >> 3] + ((y & 7) << 1);
v = 128 >> (x & 7);
- if (c & 0x01) a[0] |= v;
- else a[0] &= ~v;
- if (c & 0x02) a[1] |= v;
- else a[1] &= ~v;
+ if (c & 0x01)
+ a[0] |= v;
+ else
+ a[0] &= ~v;
+ if (c & 0x02)
+ a[1] |= v;
+ else
+ a[1] &= ~v;
}
/* 2c(ALT1) - rpix - read color of the pixel with R1,R2 as x,y */
@@ -636,14 +685,22 @@ static void fx_plot_4bit()
a = GSU.apvScreen[y >> 3] + GSU.x[x >> 3] + ((y & 7) << 1);
v = 128 >> (x & 7);
- if (c & 0x01) a[0x00] |= v;
- else a[0x00] &= ~v;
- if (c & 0x02) a[0x01] |= v;
- else a[0x01] &= ~v;
- if (c & 0x04) a[0x10] |= v;
- else a[0x10] &= ~v;
- if (c & 0x08) a[0x11] |= v;
- else a[0x11] &= ~v;
+ if (c & 0x01)
+ a[0x00] |= v;
+ else
+ a[0x00] &= ~v;
+ if (c & 0x02)
+ a[0x01] |= v;
+ else
+ a[0x01] &= ~v;
+ if (c & 0x04)
+ a[0x10] |= v;
+ else
+ a[0x10] &= ~v;
+ if (c & 0x08)
+ a[0x11] |= v;
+ else
+ a[0x11] &= ~v;
}
/* 4c(ALT1) - rpix - read color of the pixel with R1,R2 as x,y */
@@ -683,29 +740,47 @@ static void fx_plot_8bit()
c = (uint8_t)GSU.vColorReg;
if (!(GSU.vPlotOptionReg & 0x10))
{
- if (!(GSU.vPlotOptionReg & 0x01) && !(c & 0xf)) return;
+ if (!(GSU.vPlotOptionReg & 0x01) && !(c & 0xf))
+ return;
}
- else if (!(GSU.vPlotOptionReg & 0x01) && !c) return;
+ else if (!(GSU.vPlotOptionReg & 0x01) && !c)
+ return;
a = GSU.apvScreen[y >> 3] + GSU.x[x >> 3] + ((y & 7) << 1);
v = 128 >> (x & 7);
- if (c & 0x01) a[0x00] |= v;
- else a[0x00] &= ~v;
- if (c & 0x02) a[0x01] |= v;
- else a[0x01] &= ~v;
- if (c & 0x04) a[0x10] |= v;
- else a[0x10] &= ~v;
- if (c & 0x08) a[0x11] |= v;
- else a[0x11] &= ~v;
- if (c & 0x10) a[0x20] |= v;
- else a[0x20] &= ~v;
- if (c & 0x20) a[0x21] |= v;
- else a[0x21] &= ~v;
- if (c & 0x40) a[0x30] |= v;
- else a[0x30] &= ~v;
- if (c & 0x80) a[0x31] |= v;
- else a[0x31] &= ~v;
+ if (c & 0x01)
+ a[0x00] |= v;
+ else
+ a[0x00] &= ~v;
+ if (c & 0x02)
+ a[0x01] |= v;
+ else
+ a[0x01] &= ~v;
+ if (c & 0x04)
+ a[0x10] |= v;
+ else
+ a[0x10] &= ~v;
+ if (c & 0x08)
+ a[0x11] |= v;
+ else
+ a[0x11] &= ~v;
+ if (c & 0x10)
+ a[0x20] |= v;
+ else
+ a[0x20] &= ~v;
+ if (c & 0x20)
+ a[0x21] |= v;
+ else
+ a[0x21] &= ~v;
+ if (c & 0x40)
+ a[0x30] |= v;
+ else
+ a[0x30] &= ~v;
+ if (c & 0x80)
+ a[0x31] |= v;
+ else
+ a[0x31] &= ~v;
}
/* 4c(ALT1) - rpix - read color of the pixel with R1,R2 as x,y */
@@ -778,10 +853,7 @@ static void fx_cmode()
GSU.vPlotOptionReg = SREG;
if (GSU.vPlotOptionReg & 0x10)
- {
- /* OBJ Mode (for drawing into sprites) */
- GSU.vScreenHeight = 256;
- }
+ GSU.vScreenHeight = 256; // OBJ Mode (for drawing into sprites)
else
GSU.vScreenHeight = GSU.vScreenRealHeight;
@@ -804,14 +876,16 @@ static void fx_not()
/* 50-5f - add rn - add, register + register */
#define FX_ADD(reg) \
-int32_t s = SUSEX16(SREG) + SUSEX16(GSU.avReg[reg]); \
-GSU.vCarry = s >= 0x10000; \
-GSU.vOverflow = ~(SREG ^ GSU.avReg[reg]) & (GSU.avReg[reg] ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; DREG = s; \
-TESTR14; \
-CLRFLAGS
+ int32_t s = SUSEX16(SREG) + SUSEX16(GSU.avReg[reg]); \
+ GSU.vCarry = s >= 0x10000; \
+ GSU.vOverflow = ~(SREG ^ GSU.avReg[reg]) & (GSU.avReg[reg] ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ DREG = s; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_add_r0()
{
FX_ADD(0);
@@ -879,14 +953,16 @@ static void fx_add_r15()
/* 50-5f(ALT1) - adc rn - add with carry, register + register */
#define FX_ADC(reg) \
-int32_t s = SUSEX16(SREG) + SUSEX16(GSU.avReg[reg]) + SEX16(GSU.vCarry); \
-GSU.vCarry = s >= 0x10000; \
-GSU.vOverflow = ~(SREG ^ GSU.avReg[reg]) & (GSU.avReg[reg] ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; DREG = s; \
-TESTR14; \
-CLRFLAGS
+ int32_t s = SUSEX16(SREG) + SUSEX16(GSU.avReg[reg]) + SEX16(GSU.vCarry); \
+ GSU.vCarry = s >= 0x10000; \
+ GSU.vOverflow = ~(SREG ^ GSU.avReg[reg]) & (GSU.avReg[reg] ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ DREG = s; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_adc_r0()
{
FX_ADC(0);
@@ -954,14 +1030,16 @@ static void fx_adc_r15()
/* 50-5f(ALT2) - add #n - add, register + immediate */
#define FX_ADD_I(imm) \
-int32_t s = SUSEX16(SREG) + imm; \
-GSU.vCarry = s >= 0x10000; \
-GSU.vOverflow = ~(SREG ^ imm) & (imm ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; DREG = s; \
-TESTR14; \
-CLRFLAGS
+ int32_t s = SUSEX16(SREG) + imm; \
+ GSU.vCarry = s >= 0x10000; \
+ GSU.vOverflow = ~(SREG ^ imm) & (imm ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ DREG = s; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_add_i0()
{
FX_ADD_I(0);
@@ -1029,14 +1107,16 @@ static void fx_add_i15()
/* 50-5f(ALT3) - adc #n - add with carry, register + immediate */
#define FX_ADC_I(imm) \
-int32_t s = SUSEX16(SREG) + imm + SUSEX16(GSU.vCarry); \
-GSU.vCarry = s >= 0x10000; \
-GSU.vOverflow = ~(SREG ^ imm) & (imm ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; DREG = s; \
-TESTR14; \
-CLRFLAGS
+ int32_t s = SUSEX16(SREG) + imm + SUSEX16(GSU.vCarry); \
+ GSU.vCarry = s >= 0x10000; \
+ GSU.vOverflow = ~(SREG ^ imm) & (imm ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ DREG = s; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_adc_i0()
{
FX_ADC_I(0);
@@ -1104,14 +1184,16 @@ static void fx_adc_i15()
/* 60-6f - sub rn - subtract, register - register */
#define FX_SUB(reg) \
-int32_t s = SUSEX16(SREG) - SUSEX16(GSU.avReg[reg]); \
-GSU.vCarry = s >= 0; \
-GSU.vOverflow = (SREG ^ GSU.avReg[reg]) & (SREG ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; DREG = s; \
-TESTR14; \
-CLRFLAGS
+ int32_t s = SUSEX16(SREG) - SUSEX16(GSU.avReg[reg]); \
+ GSU.vCarry = s >= 0; \
+ GSU.vOverflow = (SREG ^ GSU.avReg[reg]) & (SREG ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ DREG = s; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_sub_r0()
{
FX_SUB(0);
@@ -1179,14 +1261,16 @@ static void fx_sub_r15()
/* 60-6f(ALT1) - sbc rn - subtract with carry, register - register */
#define FX_SBC(reg) \
-int32_t s = SUSEX16(SREG) - SUSEX16(GSU.avReg[reg]) - (SUSEX16(GSU.vCarry^1)); \
-GSU.vCarry = s >= 0; \
-GSU.vOverflow = (SREG ^ GSU.avReg[reg]) & (SREG ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; DREG = s; \
-TESTR14; \
-CLRFLAGS
+ int32_t s = SUSEX16(SREG) - SUSEX16(GSU.avReg[reg]) - (SUSEX16(GSU.vCarry ^ 1)); \
+ GSU.vCarry = s >= 0; \
+ GSU.vOverflow = (SREG ^ GSU.avReg[reg]) & (SREG ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ DREG = s; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_sbc_r0()
{
FX_SBC(0);
@@ -1254,14 +1338,16 @@ static void fx_sbc_r15()
/* 60-6f(ALT2) - sub #n - subtract, register - immediate */
#define FX_SUB_I(imm) \
-int32_t s = SUSEX16(SREG) - imm; \
-GSU.vCarry = s >= 0; \
-GSU.vOverflow = (SREG ^ imm) & (SREG ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; DREG = s; \
-TESTR14; \
-CLRFLAGS
+ int32_t s = SUSEX16(SREG) - imm; \
+ GSU.vCarry = s >= 0; \
+ GSU.vOverflow = (SREG ^ imm) & (SREG ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ DREG = s; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_sub_i0()
{
FX_SUB_I(0);
@@ -1329,13 +1415,14 @@ static void fx_sub_i15()
/* 60-6f(ALT3) - cmp rn - compare, register, register */
#define FX_CMP(reg) \
-int32_t s = SUSEX16(SREG) - SUSEX16(GSU.avReg[reg]); \
-GSU.vCarry = s >= 0; \
-GSU.vOverflow = (SREG ^ GSU.avReg[reg]) & (SREG ^ s) & 0x8000; \
-GSU.vSign = s; \
-GSU.vZero = s; \
-R15++; \
-CLRFLAGS;
+ int32_t s = SUSEX16(SREG) - SUSEX16(GSU.avReg[reg]); \
+ GSU.vCarry = s >= 0; \
+ GSU.vOverflow = (SREG ^ GSU.avReg[reg]) & (SREG ^ s) & 0x8000; \
+ GSU.vSign = s; \
+ GSU.vZero = s; \
+ R15++; \
+ CLRFLAGS
+
static void fx_cmp_r0()
{
FX_CMP(0);
@@ -1417,12 +1504,14 @@ static void fx_merge()
/* 71-7f - and rn - reister & register */
#define FX_AND(reg) \
-uint32_t v = SREG & GSU.avReg[reg]; \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG & GSU.avReg[reg]; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_and_r1()
{
FX_AND(1);
@@ -1486,12 +1575,14 @@ static void fx_and_r15()
/* 71-7f(ALT1) - bic rn - reister & ~register */
#define FX_BIC(reg) \
-uint32_t v = SREG & ~GSU.avReg[reg]; \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG & ~GSU.avReg[reg]; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_bic_r1()
{
FX_BIC(1);
@@ -1555,12 +1646,14 @@ static void fx_bic_r15()
/* 71-7f(ALT2) - and #n - reister & immediate */
#define FX_AND_I(imm) \
-uint32_t v = SREG & imm; \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG & imm; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_and_i1()
{
FX_AND_I(1);
@@ -1624,12 +1717,14 @@ static void fx_and_i15()
/* 71-7f(ALT3) - bic #n - reister & ~immediate */
#define FX_BIC_I(imm) \
-uint32_t v = SREG & ~imm; \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG & ~imm; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_bic_i1()
{
FX_BIC_I(1);
@@ -1693,12 +1788,14 @@ static void fx_bic_i15()
/* 80-8f - mult rn - 8 bit to 16 bit signed multiply, register * register */
#define FX_MULT(reg) \
-uint32_t v = (uint32_t)(SEX8(SREG) * SEX8(GSU.avReg[reg])); \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = (uint32_t) (SEX8(SREG) * SEX8(GSU.avReg[reg])); \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_mult_r0()
{
FX_MULT(0);
@@ -1766,12 +1863,14 @@ static void fx_mult_r15()
/* 80-8f(ALT1) - umult rn - 8 bit to 16 bit unsigned multiply, register * register */
#define FX_UMULT(reg) \
-uint32_t v = USEX8(SREG) * USEX8(GSU.avReg[reg]); \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = USEX8(SREG) * USEX8(GSU.avReg[reg]); \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_umult_r0()
{
FX_UMULT(0);
@@ -1839,12 +1938,14 @@ static void fx_umult_r15()
/* 80-8f(ALT2) - mult #n - 8 bit to 16 bit signed multiply, register * immediate */
#define FX_MULT_I(imm) \
-uint32_t v = (uint32_t) (SEX8(SREG) * ((int32_t)imm)); \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = (uint32_t) (SEX8(SREG) * ((int32_t) imm)); \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_mult_i0()
{
FX_MULT_I(0);
@@ -1912,12 +2013,14 @@ static void fx_mult_i15()
/* 80-8f(ALT3) - umult #n - 8 bit to 16 bit unsigned multiply, register * immediate */
#define FX_UMULT_I(imm) \
-uint32_t v = USEX8(SREG) * ((uint32_t)imm); \
-R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = USEX8(SREG) * ((uint32_t) imm); \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_umult_i0()
{
FX_UMULT_I(0);
@@ -1993,7 +2096,11 @@ static void fx_sbk()
}
/* 91-94 - link #n - R11 = R15 + immediate */
-#define FX_LINK_I(lkn) R11 = R15 + lkn; CLRFLAGS; R15++
+#define FX_LINK_I(lkn) \
+ R11 = R15 + lkn; \
+ CLRFLAGS; \
+ R15++
+
static void fx_link_i1()
{
FX_LINK_I(1);
@@ -2070,8 +2177,9 @@ static void fx_ror()
/* 98-9d - jmp rn - jump to address of register */
#define FX_JMP(reg) \
-R15 = GSU.avReg[reg]; \
-CLRFLAGS;
+ R15 = GSU.avReg[reg]; \
+ CLRFLAGS
+
static void fx_jmp_r8()
{
FX_JMP(8);
@@ -2099,10 +2207,13 @@ static void fx_jmp_r13()
/* 98-9d(ALT1) - ljmp rn - set program bank to source register and jump to address of register */
#define FX_LJMP(reg) \
-GSU.vPrgBankReg = GSU.avReg[reg] & 0x7f; \
-GSU.pvPrgBank = GSU.apvRomBank[GSU.vPrgBankReg]; \
-R15 = SREG; \
-GSU.bCacheActive = false; fx_cache(); R15--;
+ GSU.vPrgBankReg = GSU.avReg[reg] & 0x7f; \
+ GSU.pvPrgBank = GSU.apvRomBank[GSU.vPrgBankReg]; \
+ R15 = SREG; \
+ GSU.bCacheActive = false; \
+ fx_cache(); \
+ R15--
+
static void fx_ljmp_r8()
{
FX_LJMP(8);
@@ -2174,10 +2285,13 @@ static void fx_lmult()
/* a0-af - ibt rn,#pp - immediate byte transfer */
#define FX_IBT(reg) \
-uint8_t v = PIPE; R15++; \
-FETCHPIPE; R15++; \
-GSU.avReg[reg] = SEX8(v); \
-CLRFLAGS;
+ uint8_t v = PIPE; \
+ R15++; \
+ FETCHPIPE; \
+ R15++; \
+ GSU.avReg[reg] = SEX8(v); \
+ CLRFLAGS
+
static void fx_ibt_r0()
{
FX_IBT(0);
@@ -2246,11 +2360,14 @@ static void fx_ibt_r15()
/* a0-af(ALT1) - lms rn,(yy) - load word from RAM (short address) */
#define FX_LMS(reg) \
-GSU.vLastRamAdr = ((uint32_t)PIPE) << 1; \
-R15++; FETCHPIPE; R15++; \
-GSU.avReg[reg] = (uint32_t)RAM(GSU.vLastRamAdr); \
-GSU.avReg[reg] |= ((uint32_t)RAM(GSU.vLastRamAdr+1))<<8; \
-CLRFLAGS;
+ GSU.vLastRamAdr = ((uint32_t) PIPE) << 1; \
+ R15++; \
+ FETCHPIPE; \
+ R15++; \
+ GSU.avReg[reg] = (uint32_t) RAM(GSU.vLastRamAdr); \
+ GSU.avReg[reg] |= ((uint32_t) RAM(GSU.vLastRamAdr + 1)) << 8; \
+ CLRFLAGS
+
static void fx_lms_r0()
{
FX_LMS(0);
@@ -2320,12 +2437,15 @@ static void fx_lms_r15()
/* a0-af(ALT2) - sms (yy),rn - store word in RAM (short address) */
/* If rn == r15, is the value of r15 before or after the extra byte is read? */
#define FX_SMS(reg) \
-uint32_t v = GSU.avReg[reg]; \
-GSU.vLastRamAdr = ((uint32_t)PIPE) << 1; \
-R15++; FETCHPIPE; \
-RAM(GSU.vLastRamAdr) = (uint8_t)v; \
-RAM(GSU.vLastRamAdr+1) = (uint8_t)(v>>8); \
-CLRFLAGS; R15++;
+ uint32_t v = GSU.avReg[reg]; \
+ GSU.vLastRamAdr = ((uint32_t) PIPE) << 1; \
+ R15++; \
+ FETCHPIPE; \
+ RAM(GSU.vLastRamAdr) = (uint8_t) v; \
+ RAM(GSU.vLastRamAdr + 1) = (uint8_t) (v >> 8); \
+ CLRFLAGS; \
+ R15++
+
static void fx_sms_r0()
{
FX_SMS(0);
@@ -2394,9 +2514,23 @@ static void fx_sms_r15()
/* b0-bf - from rn - set source register */
/* b0-bf(B) - moves rn - move register to register, and set flags, (if B flag is set) */
#define FX_FROM(reg) \
-if(TF(B)) { uint32_t v = GSU.avReg[reg]; R15++; DREG = v; \
-GSU.vOverflow = (v&0x80) << 16; GSU.vSign = v; GSU.vZero = v; TESTR14; CLRFLAGS; } \
-else { GSU.pvSreg = &GSU.avReg[reg]; R15++; }
+ if (TF(B)) \
+ { \
+ uint32_t v = GSU.avReg[reg]; \
+ R15++; \
+ DREG = v; \
+ GSU.vOverflow = (v & 0x80) << 16; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS; \
+ } \
+ else \
+ { \
+ GSU.pvSreg = &GSU.avReg[reg]; \
+ R15++; \
+ }
+
static void fx_from_r0()
{
FX_FROM(0);
@@ -2476,11 +2610,14 @@ static void fx_hib()
/* c1-cf - or rn */
#define FX_OR(reg) \
-uint32_t v = SREG | GSU.avReg[reg]; R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG | GSU.avReg[reg]; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_or_r1()
{
FX_OR(1);
@@ -2544,11 +2681,14 @@ static void fx_or_r15()
/* c1-cf(ALT1) - xor rn */
#define FX_XOR(reg) \
-uint32_t v = SREG ^ GSU.avReg[reg]; R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG ^ GSU.avReg[reg]; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_xor_r1()
{
FX_XOR(1);
@@ -2612,11 +2752,14 @@ static void fx_xor_r15()
/* c1-cf(ALT2) - or #n */
#define FX_OR_I(imm) \
-uint32_t v = SREG | imm; R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG | imm; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_or_i1()
{
FX_OR_I(1);
@@ -2680,11 +2823,14 @@ static void fx_or_i15()
/* c1-cf(ALT3) - xor #n */
#define FX_XOR_I(imm) \
-uint32_t v = SREG ^ imm; R15++; DREG = v; \
-GSU.vSign = v; \
-GSU.vZero = v; \
-TESTR14; \
-CLRFLAGS;
+ uint32_t v = SREG ^ imm; \
+ R15++; \
+ DREG = v; \
+ GSU.vSign = v; \
+ GSU.vZero = v; \
+ TESTR14; \
+ CLRFLAGS
+
static void fx_xor_i1()
{
FX_XOR_I(1);
@@ -2748,10 +2894,12 @@ static void fx_xor_i15()
/* d0-de - inc rn - increase by one */
#define FX_INC(reg) \
-GSU.avReg[reg] += 1; \
-GSU.vSign = GSU.avReg[reg]; \
-GSU.vZero = GSU.avReg[reg]; \
-CLRFLAGS; R15++;
+ GSU.avReg[reg] += 1; \
+ GSU.vSign = GSU.avReg[reg]; \
+ GSU.vZero = GSU.avReg[reg]; \
+ CLRFLAGS; \
+ R15++
+
static void fx_inc_r0()
{
FX_INC(0);
@@ -2856,10 +3004,12 @@ static void fx_romb()
/* e0-ee - dec rn - decrement by one */
#define FX_DEC(reg) \
-GSU.avReg[reg] -= 1; \
-GSU.vSign = GSU.avReg[reg]; \
-GSU.vZero = GSU.avReg[reg]; \
-CLRFLAGS; R15++;
+ GSU.avReg[reg] -= 1; \
+ GSU.vSign = GSU.avReg[reg]; \
+ GSU.vZero = GSU.avReg[reg]; \
+ CLRFLAGS; \
+ R15++
+
static void fx_dec_r0()
{
FX_DEC(0);
@@ -2959,8 +3109,7 @@ static void fx_getbl()
{
uint32_t v;
#ifndef FX_DO_ROMBUFFER
- uint32_t c;
- c = (uint32_t)ROM(R14);
+ uint32_t c = (uint32_t)ROM(R14);
#else
uint32_t c = USEX8(GSU.vRomBuffer);
#endif
@@ -2990,10 +3139,16 @@ static void fx_getbs()
/* f0-ff - iwt rn,#xx - immediate word transfer to register */
#define FX_IWT(reg) \
-uint32_t v = PIPE; R15++; FETCHPIPE; R15++; \
-v |= USEX8(PIPE) << 8; FETCHPIPE; R15++; \
-GSU.avReg[reg] = v; \
-CLRFLAGS;
+ uint32_t v = PIPE; \
+ R15++; \
+ FETCHPIPE; \
+ R15++; \
+ v |= USEX8(PIPE) << 8; \
+ FETCHPIPE; \
+ R15++; \
+ GSU.avReg[reg] = v; \
+ CLRFLAGS
+
static void fx_iwt_r0()
{
FX_IWT(0);
@@ -3062,11 +3217,17 @@ static void fx_iwt_r15()
/* f0-ff(ALT1) - lm rn,(xx) - load word from RAM */
#define FX_LM(reg) \
-GSU.vLastRamAdr = PIPE; R15++; FETCHPIPE; R15++; \
-GSU.vLastRamAdr |= USEX8(PIPE) << 8; FETCHPIPE; R15++; \
-GSU.avReg[reg] = RAM(GSU.vLastRamAdr); \
-GSU.avReg[reg] |= USEX8(RAM(GSU.vLastRamAdr^1)) << 8; \
-CLRFLAGS;
+ GSU.vLastRamAdr = PIPE; \
+ R15++; \
+ FETCHPIPE; \
+ R15++; \
+ GSU.vLastRamAdr |= USEX8(PIPE) << 8; \
+ FETCHPIPE; \
+ R15++; \
+ GSU.avReg[reg] = RAM(GSU.vLastRamAdr); \
+ GSU.avReg[reg] |= USEX8(RAM(GSU.vLastRamAdr ^ 1)) << 8; \
+ CLRFLAGS
+
static void fx_lm_r0()
{
FX_LM(0);
@@ -3136,12 +3297,18 @@ static void fx_lm_r15()
/* f0-ff(ALT2) - sm (xx),rn - store word in RAM */
/* If rn == r15, is the value of r15 before or after the extra bytes are read? */
#define FX_SM(reg) \
-uint32_t v = GSU.avReg[reg]; \
-GSU.vLastRamAdr = PIPE; R15++; FETCHPIPE; R15++; \
-GSU.vLastRamAdr |= USEX8(PIPE) << 8; FETCHPIPE; \
-RAM(GSU.vLastRamAdr) = (uint8_t)v; \
-RAM(GSU.vLastRamAdr^1) = (uint8_t)(v>>8); \
-CLRFLAGS; R15++;
+ uint32_t v = GSU.avReg[reg]; \
+ GSU.vLastRamAdr = PIPE; \
+ R15++; \
+ FETCHPIPE; \
+ R15++; \
+ GSU.vLastRamAdr |= USEX8(PIPE) << 8; \
+ FETCHPIPE; \
+ RAM(GSU.vLastRamAdr) = (uint8_t) v; \
+ RAM(GSU.vLastRamAdr ^ 1) = (uint8_t) (v >> 8); \
+ CLRFLAGS; \
+ R15++
+
static void fx_sm_r0()
{
FX_SM(0);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 03:11:14 +0000