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move memory register storage

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This commit is contained in:
Erick
2022-02-05 16:07:05 +01:00
parent 8a2dafd8bc
commit e6f79014b8
1 changed files with 15 additions and 16 deletions
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src/registers.h
+15 -16
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@@ -4,7 +4,6 @@
Written by Erick Ahmed, 2022
*/
/* memory mapped register tables */
enum mmr {
MMR_KSR = 0xFE00, // keyboard status
@@ -27,20 +26,6 @@ enum registers {
RG_COUNT
};
/* Trap codes used for OP_TRAP */
enum trapcodes {
TRAP_GETC = 0x20, // get charcter from keyboard
TRAP_OUT = 0x21, // output a character
TRAP_PUTS = 0x22, // output a word string
TRAP_IN = 0x23, // get charcter from keyboard and echo to terminal
TRAP_PUTSP = 0x24, // output a byte string
TRAP_HALT = 0x25 // halt program
};
/* Initializing memory and register storages */
uint16_t memory[UINT16_MAX];
uint16_t reg[RG_COUNT];
/* Creating instruction set opcodes */
enum opcodes { // [name, 8-bit value]
OP_BR = 0, // branch, 0000
@@ -61,9 +46,23 @@ enum opcodes { // [name, 8-bit value]
OP_TRAP, // execute trap, 1111
};
/* Trap codes used for OP_TRAP */
enum trapcodes {
TRAP_GETC = 0x20, // get charcter from keyboard
TRAP_OUT = 0x21, // output a character
TRAP_PUTS = 0x22, // output a word string
TRAP_IN = 0x23, // get charcter from keyboard and echo to terminal
TRAP_PUTSP = 0x24, // output a byte string
TRAP_HALT = 0x25 // halt program
};
/* Creating condition flags */
enum flags {
FL_P = 1, // Positive
FL_Z = 1 << 1, // Zero
FL_N = 1 << 2, // Negative
};
};
/* Initializing memory and register storages */
uint16_t memory[UINT16_MAX];
uint16_t reg[RG_COUNT];