- .DATA
+
/****************************************************************
****************************************************************/
- .align 4
-
- @ notaz
- .equiv ASM_SPC700, 1 ;@ 1 = use notaz's ASM_SPC700 core
+@ notaz
+.equiv ASM_SPC700, 1 ;@ 1 = use notaz's ASM_SPC700 core
/****************************************************************
DEFINES
reg_cpu_var .req R14
-
@ not used
@ R13 @ Pointer 32 bit on a struct.
@ R15 = pc (sic!)
-
-/*
-.equ Carry 1
-.equ Zero 2
-.equ IRQ 4
-.equ Decimal 8
-.equ IndexFlag 16
-.equ MemoryFlag 32
-.equ Overflow 64
-.equ Negative 128
-.equ Emulation 256*/
-
.equ STATUS_SHIFTER, 24
.equ MASK_EMUL, (1<<(STATUS_SHIFTER-1))
.equ MASK_SHIFTER_CARRY, (STATUS_SHIFTER+1)
.equ SRAMMask, 120
.equ APUExecuting_ofs, 122
-
-.equ PALMOS_R9_ofs, 124
-.equ PALMOS_R10_ofs, 128
-
@ notaz
-.equ APU_Cycles, 132
+.equ APU_Cycles, 124
/*****************************************************************/
SAVE_REGS
PREPARE_C_CALL_LIGHT
@ BL asm_S9xDoHBlankProcessing
- BL S9xDoHBlankProcessing @ let's go straight to number one
+ BL S9xDoHBlankProcessing
RESTORE_C_CALL_LIGHT
LOAD_REGS
.endm
.endif
.endm
-@ #include "os9x_65c816_mac_mem.h"
.macro S9xGetWord
@ in : rscratch (0x00hhmmll)
@ out : rscratch (0xhhll0000)
.macro S9xSetWord regValue
@ in : regValue (0xhhll0000)
@ in : rscratch=address (0x00hhmmll)
- STMFD R13!,{PC} @ Push return address
MOV R1,\regValue, LSR #16
+ STMFD R13!,{PC} @ Push return address
B asmS9xSetWord
MOV R0,R0
.endm
.macro S9xSetWordZero
@ in : rscratch=address (0x00hhmmll)
- STMFD R13!,{PC} @ Push return address
MOV R1,#0
+ STMFD R13!,{PC} @ Push return address
B asmS9xSetWord
MOV R0,R0
.endm
.macro S9xSetWordLow regValue
@ in : regValue (0x0000hhll)
@ in : rscratch=address (0x00hhmmll)
- STMFD R13!,{PC} @ Push return address
MOV R1,\regValue
+ STMFD R13!,{PC} @ Push return address
B asmS9xSetWord
MOV R0,R0
.endm
.macro S9xSetByte regValue
@ in : regValue (0xll000000)
@ in : rscratch=address (0x00hhmmll)
- STMFD R13!,{PC} @ Push return address
MOV R1,\regValue, LSR #24
+ STMFD R13!,{PC} @ Push return address
B asmS9xSetByte
MOV R0,R0
.endm
.macro S9xSetByteZero
@ in : rscratch=address (0x00hhmmll)
- STMFD R13!,{PC} @ Push return address
MOV R1,#0
+ STMFD R13!,{PC} @ Push return address
B asmS9xSetByte
MOV R0,R0
.endm
.macro S9xSetByteLow regValue
@ in : regValue (0x000000ll)
@ in : rscratch=address (0x00hhmmll)
- STMFD R13!,{PC} @ Push return address
MOV R1,\regValue
+ STMFD R13!,{PC} @ Push return address
B asmS9xSetByte
MOV R0,R0
.endm
LDRSB rscratch , [rpc],#1
ADD rscratch , rscratch , rpc
SUB rscratch , rscratch, regpcbase
- BIC rscratch,rscratch,#0x00FF0000
- BIC rscratch,rscratch,#0xFF000000
+ UXTH rscratch,rscratch
.endm
.macro asmRelativeLong
ADD1CYCLE2MEM
MOVS rscratch,rscratch
.endm
+@ START OF PROGRAM CODE
+
+.text
+
+.align 4
.globl asmS9xGetByte
.globl asmS9xGetWord
MOV R0,R0,LSR #16
PREPARE_C_CALL
MOV R12,R0
- MOV R0,R1
+ UXTB R0,R1
MOV R1,R12
BL S9xSetPPU
RESTORE_C_CALL
MOV R0,R0,LSR #16 @ Address&0xFFFF
PREPARE_C_CALL
MOV R12,R0
- MOV R0,R1
+ UXTB R0,R1
MOV R1,R12
BL S9xSetCPU
RESTORE_C_CALL
MOV R0,R0,LSR #16 @ Address&0xFFFF
PREPARE_C_CALL
MOV R12,R0
- MOV R0,R1
+ UXTB R0,R1
MOV R1,R12
BL S9xSetDSP
RESTORE_C_CALL
MOV R0,R0,LSR #16 @ Address&0xFFFF
PREPARE_C_CALL
MOV R12,R0
- MOV R0,R1
+ UXTB R0,R1
MOV R1,R12
BL S9xSetC4
RESTORE_C_CALL
MOV R1,R0
MOV R0,R2
PREPARE_C_CALL_R0R1
+ UXTB R0,R0
BL S9xSetPPU
LDMFD R13!,{R0,R1}
ADD R1,R1,#1
- MOV R0,R0,LSR #8
+ UXTB R0,R0,ROR #8
BIC R1,R1,#0x10000
BL S9xSetPPU
RESTORE_C_CALL
MOV R1,R0
MOV R0,R2
PREPARE_C_CALL_R0R1
+ UXTB R0,R0
BL S9xSetCPU
LDMFD R13!,{R0,R1}
ADD R1,R1,#1
- MOV R0,R0,LSR #8
+ UXTB R0,R0,ROR #8 @ ((R0 >> 8) & 0xFF)
BIC R1,R1,#0x10000
BL S9xSetCPU
RESTORE_C_CALL
MOV R1,R0
MOV R0,R2
PREPARE_C_CALL_R0R1
+ UXTB R0,R0
BL S9xSetDSP
LDMFD R13!,{R0,R1}
ADD R1,R1,#1
- MOV R0,R0,LSR #8
+ UXTB R0,R0,ROR #8
BIC R1,R1,#0x10000
BL S9xSetDSP
RESTORE_C_CALL
MOV R1,R0
MOV R0,R2
PREPARE_C_CALL_R0R1
+ UXTB R0,R0
BL S9xSetC4
LDMFD R13!,{R0,R1}
ADD R1,R1,#1
- MOV R0,R0,LSR #8
+ UXTB R0,R0,ROR #8
BIC R1,R1,#0x10000
BL S9xSetC4
RESTORE_C_CALL
1111:
.endm
.macro Op30 /*BMI*/
- asmRelative
+ asmRelative
BranchCheck0
TST rstatus, #MASK_NEG
BEQ 1111f
.endm
.macro OpAB
BIC reg_d_bank,reg_d_bank, #0xFF
- PullBrS
+ PullBrS
ORR reg_d_bank,reg_d_bank,rscratch, LSR #24
UPDATE_ZN
ADD2CYCLE
.endm
-.macro Op2B
- BIC reg_d,reg_d, #0xFF000000
- BIC reg_d,reg_d, #0x00FF0000
- PullWrS
+.macro Op2B
+ UXTH reg_d,reg_d
+ PullWrS
ORR reg_d,rscratch,reg_d
UPDATE_ZN
ADD2CYCLE
BNE 1234f
/*
CPU.WaitingForInterrupt = TRUE;
- CPU.PC--;*/
+ CPU.PC--;
+*/
MOV rscratch,#1
SUB rpc,rpc,#1
/*
SUB rpc,rpc,#1
@ CPU.Flags |= DEBUG_MODE_FLAG;
.endm
-.macro Op42 /*Reserved Snes9X*/
+.macro Op42 /*Reserved Snes9X: SNESAdvance SpeedHack */
+@ Explanation: this is a reserved opcode turned into special "idle"/hlt opcode.
+@ This means we should do an hblank now.
+/*-
+ CPU.Cycles = CPU.NextEvent;
+*/ ldr reg_cycles, [reg_cpu_var,#NextEvent_ofs]
+@ Now execute the shadowed branch
+@ Equivalent to "asmRelative":
+ ADD1MEM
+ ldrb rscratch, [rpc], #1
+ and rscratch2, rscratch, #0xf0 @branch type
+ orr rscratch, rscratch, #0xf0 @branch dest (always negative, so sign ext)
+ sxtb rscratch, rscratch
+ add rscratch, rscratch, rpc
+ sub rscratch, rscratch, regpcbase
+ uxth rscratch, rscratch
+@ TODO: Do something with rscratch2 before BranchCheck clobbers it.
+@ Currently hardcoded to BEQ
+ BranchCheck2
+ TST rstatus, #MASK_ZERO
+ BEQ 1111f
+ ADD rpc, rscratch, regpcbase @ rpc = OpAddress +PCBase
+ ADD1CYCLE
+ CPUShutdown
.endm
/**********************************************************************************************/
ADD2MEM
.endm
-/*
-
-CLI_OPE_REC_Nos_Layer0
- nos.nos_ope_treasury_date = convert(DATETIME, @treasuryDate, 103)
- nos.nos_ope_accounting_date = convert(DATETIME, @accountingDate, 103)
-
-CLI_OPE_Nos_Ope_Layer0
- n.nos_ope_treasury_date = convert(DATETIME, @LARD, 103)
- n.nos_ope_accounting_date = convert(DATETIME, @LARD, 103)
-
-CLI_OPE_Nos_Layer0
- nos.nos_ope_treasury_date = convert(DATETIME, @LARD, 103)
- nos.nos_ope_accounting_date = convert(DATETIME, @LARD, 103)
-
-Ecrans:
-------
-
-
-[GNV] : utilisation de la lard (laccdate) pour afficher les openings.
- +nécessité d'avoir des valeurs dans l'opening pour date tréso=date compta=laccdate
-
-[Accounting rec] : si laccdate pas bonne (pas = BD-1) -> message warning et pas de donnée
-sinon :
- +données nécessaires : opening date tréso=date compta=laccdate=BD-1
- +données nécessaires : opening date tréso=date compta=laccdate-1
- +données nécessaires : opening date tréso=laccdate-1 et date compta=laccdate
- */
-
-
-
/****************************************************************
GLOBAL
****************************************************************/
- .globl test_opcode
- .globl asmMainLoop
-
+.global asmMainLoop
+.type asmMainLoop, function
@ void asmMainLoop(asm_cpu_var_t *asmcpuPtr);
asmMainLoop:
@ save registers
- STMFD R13!,{R4-R11,LR}
+ STMFD R13!,{R4-R11, LR}
@ init pointer to CPUvar structure
MOV reg_cpu_var,R0
@ init registers
EXEC_OP @ Execute next opcode
endmainLoop:
-
/*Registers.PC = CPU.PC - CPU.PCBase;
S9xPackStatus ();
APURegisters.PC = IAPU.PC - IAPU.RAM;
} */
/********end*/
SAVE_REGS
- LDMFD R13!,{R4-R11,LR}
- MOV PC,LR
+ LDMFD R13!,{R4-R11, LR}
+ BX LR
.pool
+.size asmMainLoop, asmMainLoop-.
@ void test_opcode(struct asm_cpu_var *asm_var);
test_opcode:
projects / drnoksnes / blobdiff